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Cheap flights from Montreal to Missouri from C$ 258

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — STL
7 Apr — 14 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Missouri

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Missouri
Explore the most affordable flight options available from Montreal to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2026.

Tue 5/512:30 p.m.
YUL
-
STL
1 stop10h 49m
American Airlines
Sat 9/58:03 p.m.
STL
-
YUL
1 stop14h 41m
American Airlines
Deal found 5/3C$ 457
Tue 21/412:30 p.m.
YUL
-
STL
1 stop10h 49m
American Airlines
Sat 25/48:03 p.m.
STL
-
YUL
1 stop14h 41m
American Airlines
Deal found 5/3C$ 469
Mon 20/412:30 p.m.
YUL
-
STL
1 stop12h 16m
American Airlines
Sat 25/44:30 p.m.
STL
-
YUL
1 stop18h 14m
American Airlines
Deal found 7/3C$ 485
Tue 21/41:03 p.m.
YUL
-
STL
2 stops11h 43m
American Airlines
Tue 28/45:21 p.m.
STL
-
YUL
1 stop17h 23m
American Airlines
Deal found 7/3C$ 519
Wed 15/41:20 p.m.
YUL
-
STL
1 stop8h 53m
United Airlines
Sat 18/47:45 a.m.
STL
-
YUL
1 stop10h 11m
United Airlines
Deal found 4/3C$ 576
Sun 19/48:00 a.m.
YUL
-
STL
2 stops23h 50m
Multiple Airlines
Thu 30/44:59 p.m.
STL
-
YUL
1 stop30h 26m
Multiple Airlines
Deal found 3/3C$ 579
Mon 20/46:30 p.m.
YUL
-
STL
1 stop27h 43m
United Airlines
Sat 25/46:30 a.m.
STL
-
YUL
1 stop8h 35m
United Airlines
Deal found 5/3C$ 582
Tue 2/65:33 p.m.
YUL
-
MCI
1 stop16h 02m
American Airlines
Tue 18/86:05 a.m.
MCI
-
YUL
1 stop8h 12m
American Airlines
Deal found 6/3C$ 704
Mon 13/46:30 p.m.
YUL
-
MCI
1 stop24h 08m
United Airlines
Thu 16/46:15 a.m.
MCI
-
YUL
1 stop8h 50m
United Airlines
Deal found 5/3C$ 715
Sun 29/36:45 p.m.
YUL
-
MCI
1 stop6h 27m
Delta
Sun 5/47:05 a.m.
MCI
-
YUL
1 stop9h 36m
Delta
Deal found 5/3C$ 721
Tue 12/59:45 a.m.
YUL
-
MCI
1 stop5h 41m
United Airlines
Sat 16/59:45 a.m.
MCI
-
YUL
2 stops9h 00m
United Airlines
Deal found 7/3C$ 723
Thu 9/49:15 a.m.
YUL
-
MCI
2 stops11h 30m
United Airlines
Mon 13/49:55 a.m.
MCI
-
YUL
1 stop10h 31m
United Airlines
Deal found 7/3C$ 727

Find flight deals from Montreal to Missouri

Keep the following information in mind while searching for Montreal to Missouri flight deals. Data was last updated 8 March 2026.

Round-trip from

C$ 457

One-way from

C$ 258

Popular in

May

Cheapest in

July

Average price

C$ 980

Good one-way deal

C$ 486 or less
American Airlines
  • American Airlines
  • 5/5-9/5
  • 2 total stops
  • 25h 30m total
  • Montreal to Missouri
Search Deals
American Airlines
  • American Airlines
  • 1/4
  • 1 total stop
  • 8h 59m total
  • Montreal to Missouri
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to Missouri.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Missouri 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 629,999 searches. Data last updated 8 March 2026.
Use the filters below to find and compare flights from Montreal to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

1:20 p.m.-9:13 p.m.

1 stop8h 53m

Lambert-St Louis

Sat 18/4

7:45 a.m.-6:56 p.m.

1 stop10h 11m

C$ 576
Quickest round-trip

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

4:40 p.m.-6:27 p.m.

Nonstop2h 47m

Lambert-St Louis

Tue 25/8

12:10 p.m.-3:42 p.m.

Nonstop2h 32m

C$ 601

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

4:55 p.m.-9:47 p.m.

1 stop5h 52m

Lambert-St Louis

Tue 31/3

6:15 a.m.-1:09 p.m.

1 stop5h 54m

C$ 617

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 19/4

7:00 a.m.-11:43 a.m.

1 stop5h 43m

Lambert-St Louis

Thu 30/4

12:23 p.m.-11:26 p.m.

1 stop10h 03m

C$ 624

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

7:00 a.m.-12:20 p.m.

1 stop6h 20m

Lambert-St Louis

Sat 16/5

5:36 p.m.-11:41 p.m.

1 stop5h 05m

C$ 624

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

9:15 a.m.-9:22 p.m.

2 stops13h 07m

Lambert-St Louis

Tue 25/8

7:30 a.m.-7:45 p.m.

2 stops11h 15m

C$ 624

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

7:00 a.m.-11:39 a.m.

1 stop5h 39m

Lambert-St Louis

Sat 18/4

5:59 p.m.-11:08 p.m.

1 stop4h 09m

C$ 624

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

7:00 a.m.-11:56 a.m.

1 stop5h 56m

Lambert-St Louis

Fri 8/5

7:15 a.m.-5:42 p.m.

1 stop9h 27m

C$ 625

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

11:23 a.m.-9:13 p.m.

2 stops10h 50m

Lambert-St Louis

Sat 9/5

7:45 a.m.-7:45 p.m.

2 stops11h 00m

C$ 625

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 19/4

7:00 a.m.-11:56 a.m.

1 stop5h 56m

Lambert-St Louis

Fri 24/4

5:59 p.m.-11:19 p.m.

1 stop4h 20m

C$ 625

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Montreal to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Montreal 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.

Cheapflights Insights

Everything you need to know about your flight from Montreal to Missouri

What is the cheapest month to book a flight from Montreal to Missouri?

Currently, October is the cheapest month in which you can book a flight from Montreal to Missouri (average of C$ 325). Flying from Montreal to Missouri in August is currently the most expensive (average of C$ 789). 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.

How much does it cost to fly round-trip from Montreal to Missouri?

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated 8 March 2026.
Get a feel of what it's like to fly with WestJet and Air Canada from Montreal to Missouri by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,283 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.2

Comfort

7.0

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..
WestJet
7.2
Good
3,283 reviews
WestJet
7.2
Good
3,283 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.2

Comfort

7.0

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..
Air Canada
7.1
Good
10,795 reviews
WestJet
7.2
Good
3,283 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.2

Comfort

7.0

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Joseph,Feb 2026

YYJ - YEG

Is just a domestic flight can't complain at all..but everything is great..

Related info for your journey

Find useful and relevant information for your journey from Montreal to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal to Missouri?

    Airlines like United Airlines, Air Canada, and Delta fly from Montreal to Missouri in about 2h 47m. The time it takes to get you to your destination can typically vary by up to 6h 06m. There are 1556 km between Montreal and Missouri. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Montreal to Missouri?

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis, Montreal Pierre Elliott Trudeau Intl - Kansas City or Montreal Pierre Elliott Trudeau Intl - Cape Girardeau when deciding on the best route from Montreal to Missouri.

  • What are the cheapest flights from Montreal to Missouri?

    On average you can expect to pay C$ 486 for a flight from Montreal to Missouri. The cheapest flight overall is C$ 486 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) is currently priced at C$ 582.

  • Can I find deals for flights from Montreal to Missouri that include hotel bookings?

    Yes. In addition to deals on Montreal to Missouri flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Missouri?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Missouri.

  • Can I find deals for business class flights from Montreal to Missouri?

    Yes. Cheapflights offers flight deals from Montreal to Missouri by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Missouri?

    Currently, October is the cheapest month in which you can book a flight from Montreal to Missouri (average of C$ 325). Flying from Montreal to Missouri in August is currently the most expensive (average of C$ 789). 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

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Alternative routes for Montreal to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Ottawa to Fort Myers flights
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Pierre Elliott Trudeau Intl to Baltimore flights
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Ottawa to Reagan-National flights
Pierre Elliott Trudeau Intl to Minneapolis flights
Ottawa to Dallas/Fort Worth flights

Top 4 airlines flying from Montreal to Missouri

Discover the top 4 airlines that operate flights from Montreal to Missouri. 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 629,999 searches. Data last updated 8 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 422AverageC$ 756FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 429AverageC$ 712FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 587AverageC$ 822FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 608AverageC$ 852FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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 Montreal to Missouri?

Deals for Montreal to Missouri flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Missouri?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to Missouri.

Can Cheapflights find flights from Montreal to Missouri with no change fees?

Need flexible booking options for your flight to Missouri from Montreal? 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 Montreal to Missouri become cheaper?

Yes, Cheapflights offers price alerts on Montreal to Missouri 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.

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