Find flights
When to book
Airlines
FAQs

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis from C$ 235

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YUL — STL
4 Jun — 11 Jun1
1 adult
Tue 4/6
Tue 11/6

Cheap flight deals from Pierre Elliott Trudeau Intl to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 May 2024.

Popular in

November

Cheapest in

January

Round-trip from

C$ 500

One-way from

C$ 487
High demand for flights, 20% potential price rise
Search Deals
Best time to find cheap flights, 19% potential price drop
Search Deals
From Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis
Search Deals
One-way flight from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

Flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis lean towards being more expensive in July. Prices are generally better when you fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in February, with the cheapest ticket starting at C$ 462.

What is the cheapest time of day to fly from YUL to STL?

It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in the morning. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

Cheap United Airlines flights from Pierre Elliott Trudeau Intl to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Pierre Elliott Trudeau Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
Take a look at some of the lowest-priced United Airlines flights heading from Montreal to St. Louis. Make sure to double check the flight details before booking.
Fri 30/87:30 p.m.YUL - STL
Nonstop2h 35mUnited Airlines
Wed 4/96:02 a.m.STL - YUL
1 stop6h 14mUnited Airlines
Deal found 28/5C$ 583
Fri 16/83:29 p.m.YUL - STL
2 stops19h 50mUnited Airlines
Wed 21/86:02 a.m.STL - YUL
1 stop6h 14mUnited Airlines
Deal found 30/5C$ 587
Thu 4/76:15 a.m.YUL - STL
1 stop9h 03mUnited Airlines
Sun 21/76:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 590
Thu 4/711:00 a.m.YUL - STL
1 stop12h 37mUnited Airlines
Sun 7/76:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 591
Tue 25/66:00 a.m.YUL - STL
2 stops10h 41mUnited Airlines
Sun 30/66:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 635
Fri 28/63:29 p.m.YUL - STL
2 stops19h 50mUnited Airlines
Sun 30/66:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 841

Cheap Air Canada flights from Pierre Elliott Trudeau Intl to St. Louis

Explore cheap flight options specifically provided by Air Canada for the route between Pierre Elliott Trudeau Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
To aid your search, here are some of the cheapest Air Canada flights we've found from Montreal to St. Louis. Make sure to examine the flight information before completing your reservation.
Thu 4/77:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 21/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 627
Fri 16/87:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Wed 21/84:05 p.m.STL - YUL
1 stop8h 43mAir Canada
Deal found 30/5C$ 636
Thu 4/77:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 7/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 657
Fri 16/87:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Wed 21/812:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 680
Sat 29/66:15 a.m.YUL - STL
1 stop10h 25mAir Canada
Sat 6/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 686
Sun 1/99:10 a.m.YUL - STL
1 stop7h 11mAir Canada
Mon 9/912:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 688
Tue 11/67:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Tue 18/69:50 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 28/5C$ 759
Thu 26/97:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Mon 30/912:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 766
Tue 25/69:10 a.m.YUL - STL
1 stop7h 11mAir Canada
Sun 30/69:50 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 814

Cheap Pierre Elliott Trudeau Intl to St. Louis flights in May & June 2024

Find cheap flight options from Pierre Elliott Trudeau Intl to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 426,053 searches. Prices were last updated on 30 May 2024.
Listed are some of the best fares we've found on flights departing from Montreal to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Tue 18/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Thu 20/68:12 p.m.STL - YUL
1 stop23h 28mMultiple Airlines
Deal found 29/5C$ 532
Tue 11/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Tue 18/63:23 p.m.STL - YUL
1 stop22h 37mMultiple Airlines
Deal found 28/5C$ 576
Fri 28/68:10 a.m.YUL - STL
1 stop15h 01mUnited Airlines
Sun 30/66:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 590
Tue 18/67:00 a.m.YUL - STL
3 stops29h 45mMultiple Airlines
Thu 20/68:12 p.m.STL - YUL
3 stops27h 21mMultiple Airlines
Deal found 29/5C$ 599
Tue 25/610:43 a.m.YUL - STL
1 stop10h 30mAmerican Airlines
Sun 30/66:00 a.m.STL - YUL
1 stop9h 44mAmerican Airlines
Deal found 29/5C$ 602
Tue 25/66:00 a.m.YUL - STL
2 stops10h 41mUnited Airlines
Sun 30/66:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 635
Tue 11/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Tue 18/611:57 a.m.STL - YUL
2 stops19h 18mMultiple Airlines
Deal found 28/5C$ 672
Sat 29/67:30 a.m.YUL - STL
1 stop28h 05mWestJet
Sat 6/73:52 p.m.STL - YUL
1 stop6h 20mWestJet
Deal found 30/5C$ 677
Sat 29/66:15 a.m.YUL - STL
1 stop10h 25mAir Canada
Sat 6/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 686

Pierre Elliott Trudeau Intl to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Pierre Elliott Trudeau Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
Listed are some of the best fares we've found on flights departing from Montreal to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Tue 18/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Thu 20/68:12 p.m.STL - YUL
1 stop23h 28mMultiple Airlines
Deal found 29/5C$ 532
Fri 23/87:30 p.m.YUL - STL
Nonstop2h 35mMultiple Airlines
Sun 25/812:00 p.m.STL - YUL
Nonstop2h 23mMultiple Airlines
Deal found 28/5C$ 564
Tue 11/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Tue 18/63:23 p.m.STL - YUL
1 stop22h 37mMultiple Airlines
Deal found 28/5C$ 576
Fri 30/87:30 p.m.YUL - STL
Nonstop2h 35mUnited Airlines
Wed 4/96:02 a.m.STL - YUL
1 stop6h 14mUnited Airlines
Deal found 28/5C$ 583
Thu 4/76:15 a.m.YUL - STL
1 stop9h 03mUnited Airlines
Sun 21/76:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 590
Thu 4/711:00 a.m.YUL - STL
1 stop12h 37mUnited Airlines
Sun 7/76:08 a.m.STL - YUL
1 stop6h 08mUnited Airlines
Deal found 29/5C$ 591
Fri 16/87:29 a.m.YUL - STL
1 stop16h 54mAmerican Airlines
Wed 21/87:00 a.m.STL - YUL
1 stop5h 54mAmerican Airlines
Deal found 29/5C$ 598
Tue 18/67:00 a.m.YUL - STL
3 stops29h 45mMultiple Airlines
Thu 20/68:12 p.m.STL - YUL
3 stops27h 21mMultiple Airlines
Deal found 29/5C$ 599
Fri 12/77:50 a.m.YUL - STL
1 stop13h 59mAmerican Airlines
Mon 15/79:20 a.m.STL - YUL
1 stop12h 24mAmerican Airlines
Deal found 29/5C$ 601

Direct flights to St. Louis from Pierre Elliott Trudeau Intl

Discover non-stop flight options from Pierre Elliott Trudeau Intl to St. Louis. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
Take a look at some of the direct flights travelling from Montreal to St. Louis in the near future. Search for alternative flights from Montreal to St. Louis by utilizing the search form above.
Fri 23/87:30 p.m.YUL - STL
Nonstop2h 35mMultiple Airlines
Sun 25/812:00 p.m.STL - YUL
Nonstop2h 23mMultiple Airlines
Deal found 28/5C$ 564
Fri 16/87:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 18/812:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 580
Thu 4/77:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 21/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 624
Thu 4/77:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 21/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 627
Thu 4/77:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Sun 7/711:30 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 657
Fri 16/87:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Wed 21/812:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 677
Fri 16/87:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Wed 21/812:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 29/5C$ 680
Sun 15/97:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Tue 17/912:00 p.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 30/5C$ 721
Tue 11/67:30 p.m.YUL - STL
Nonstop2h 35mAir Canada
Tue 18/69:50 a.m.STL - YUL
Nonstop2h 23mAir Canada
Deal found 28/5C$ 759

One-way flights to St. Louis from Pierre Elliott Trudeau Intl

Search for one-way flight options from Pierre Elliott Trudeau Intl to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
Users travelling one-way from Montreal to St. Louis can select one of these great deals. Those seeking round-trip flights from Montreal to St. Louis should utilize the search form at the top of the page.
Mon 17/66:45 a.m.YUL - STL
1 stop25h 22mMultiple Airlines
Deal found 30/5C$ 235
Tue 11/66:50 a.m.YUL - STL
1 stop8h 33mMultiple Airlines
Deal found 30/5C$ 238
Mon 17/67:00 a.m.YUL - STL
2 stops25h 07mMultiple Airlines
Deal found 30/5C$ 239
Mon 10/66:50 a.m.YUL - STL
2 stops29h 07mMultiple Airlines
Deal found 29/5C$ 270
Wed 7/810:10 a.m.YUL - STL
1 stop6h 11mAir Canada
Deal found 29/5C$ 334
Thu 20/69:10 a.m.YUL - STL
1 stop7h 11mAir Canada
Deal found 30/5C$ 337
Thu 20/611:10 a.m.YUL - STL
1 stop5h 11mAir Canada
Deal found 29/5C$ 338
Fri 21/610:43 a.m.YUL - STL
1 stop10h 08mAmerican Airlines
Deal found 30/5C$ 342
Thu 20/65:23 p.m.YUL - STL
1 stop16h 13mAmerican Airlines
Deal found 29/5C$ 343

Find flights from Pierre Elliott Trudeau Intl to St. Louis within your budget

Customize your flight search to find flights from Pierre Elliott Trudeau Intl to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 502 - C$ 995

Route

Depart

Return

Price

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 18/6

1 stop8h 33m

Lambert-St Louis

Thu 20/6

1 stop23h 56m

C$ 502

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 23/8

Nonstop2h 35m

Lambert-St Louis

Sun 25/8

Nonstop2h 23m

C$ 564

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 30/8

Nonstop2h 35m

Lambert-St Louis

Wed 4/9

1 stop6h 14m

C$ 583

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 16/8

2 stops19h 50m

Lambert-St Louis

Wed 21/8

1 stop6h 14m

C$ 587

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 16/8

1 stop9h 43m

Lambert-St Louis

Wed 21/8

1 stop5h 54m

C$ 595

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 16/8

1 stop16h 54m

Lambert-St Louis

Wed 21/8

1 stop5h 54m

C$ 598

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 4/7

Nonstop2h 35m

Lambert-St Louis

Sun 21/7

Nonstop2h 23m

C$ 627

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 29/6

1 stop28h 05m

Lambert-St Louis

Sat 6/7

1 stop6h 20m

C$ 677

Montreal Pierre Elliott Trudeau IntlLambert-St Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 11/6

2 stops12h 01m

Lambert-St Louis

Tue 18/6

2 stops11h 49m

C$ 995

Flights are sorted by cheapest first

Deals found on 30/5

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to St. Louis. Price data was last updated on 26 May 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Pierre Elliott Trudeau Intl to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

0 - 27 °C

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 30 May 2024.
Read reviews from past customers who have flown United Airlines, Air Canada and WestJet from Montreal to St. Louis. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

WestJet
7.5
Good
2,869 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Air Canada
7.0
Good
7,004 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Montreal Pierre Elliott Trudeau Intl?

    Located just 20.4 km from the city centre, Lambert-St Louis is the airport most travellers will use when flying to St. Louis from Montreal Pierre Elliott Trudeau Intl. Booking flights from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis (STL) should be relatively easy as there are 0 daily inbound flights from Montreal Pierre Elliott Trudeau Intl from 6 different airlines.

  • Can I find flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis for under C$ 600 on Cheapflights?

    Yes, there are multiple flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis for under C$ 600. The cheapest flight booked recently is on Multiple Airlines for just C$ 502, but on average you can expect to pay C$ 602.

  • Are there direct flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis for under C$ 600 on Cheapflights?

    Cheapflights has 20 direct flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis under C$ 600. A good price for a direct flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis is less than C$ 1,080.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis round-trip?

    According to our current data, United Airlines (C$ 583), American Airlines (C$ 595), and Air Canada (C$ 627) offers the cheapest pricing from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis for 11% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis one-way?

    C$ 334 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from C$ 342 and C$ 369, respectively.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

    Before booking your flight to St. Louis from Montreal Pierre Elliott Trudeau Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (29%), Jazz (29%), United Airlines( 29%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

    Looking at all options, your cheapest flight can be booked for C$ 626. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) can be booked for C$ 532 on average our data indicates C$ 814 when flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis.

  • What does YUL to STL mean?

    This is defined as Montreal Pierre Elliott Trudeau Intl Airport (YUL) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Pierre Elliott Trudeau Intl to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Pierre Elliott Trudeau Intl to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Pierre Elliott Trudeau Intl to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to St. Louis that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to St. Louis.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to St. Louis?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to St. Louis that allow pets onboard?

    Many airlines flying from Pierre Elliott Trudeau Intl to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Pierre Elliott Trudeau Intl to St. Louis?

    Yes, you can often find last-minute deals on Pierre Elliott Trudeau Intl to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight deals updated?

    The Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight deals you see on this page were last updated on 29/5.

  • What are the most popular airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

    Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis (average of C$ 365). Flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in July is currently the most expensive (average of C$ 558). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pierre Elliott Trudeau Intl to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Pierre Elliott Trudeau Intl to Kansas City flights
Pierre Elliott Trudeau Intl to Cape Girardeau flights

Top 6 airlines flying from Pierre Elliott Trudeau Intl to St. Louis

Discover the top 6 airlines that operate flights from Pierre Elliott Trudeau Intl to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 426,053 searches. Data last updated 30 May 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 269AverageC$ 839FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 328AverageC$ 637FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 433AverageC$ 624FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 502AverageC$ 623FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 645AverageC$ 852FlexibilityNo cancel feeOn-time60%
Search WestJet flights
WestJet EncoreCheapestC$ 864AverageC$ 864FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
Toronto to Tokyo flights
Toronto to Munich flights
Vancouver to Bangkok flights
Toronto to Paris flights
Ottawa to London, Ontario flights
Winnipeg to New Delhi flights
Toronto to Havana flights
Toronto to Portland flights
Toronto to Budapest flights
Toronto to Rome flights
Toronto to Bogotá flights
Montreal Pierre Elliott Trudeau Intl Airport to London Stansted Airport flights

Search flights from Pierre Elliott Trudeau Intl to St. Louis by cabin class

Find flights from Pierre Elliott Trudeau Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Pierre Elliott Trudeau Intl to St. Louis

Find hourly flight availability from Pierre Elliott Trudeau Intl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 May 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
100%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Zakynthos Dionsios Salomos
Flights to Saint Peter Jersey
Flights to Ibague
Flights to Monrovia Roberts Intl
Flights to Dawson City
Flights to Maracaibo La Chinita
Flights to Dalaman
Flights to Naxos
Flights to Montgomery Dannelly Field
Flights to Suceava Salcea
Flights to Nador
Flights to Fayetteville
Flights to Tampico Gen F Javier Mina
Flights to Sioux Falls Joe Foss Field
Flights to General Santos Intl
Flights to Grand Junction Regnl
Flights to Sulaymaniyah Int.
Flights to Traverse City Cherry Capital
Flights to Tofino Long Beach
Flights to Niagara Falls
Flights to Butuan
Flights to Samarkand
Flights to Churchill
Flights to Arcata Eureka

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to St. Louis?

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to St. Louis?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Pierre Elliott Trudeau Intl to St. Louis for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Pierre Elliott Trudeau Intl to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines