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C$ 156+ Cheap flights from St. Louis

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/7. 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.
STL — YYZ
17 Jun — 24 Jun1
1 adult

What to know about flights from St. Louis

Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 June 2025.

Cheapest airline

Air Canada

Good round-trip deal

C$ 435 or less

Good one-way deal

C$ 301 or less
On average, Air Canada currently has the cheapest one-way flight from Lambert-St Louis (avg. price of C$ 772).
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Price to beat on a round-trip flight from Lambert-St Louis.
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Price to beat on a one-way flight from Lambert-St Louis.
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Find flights from St. Louis

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 12 June 2025.

Thu 4/98:44 a.m.STL - YYC
1 stop10h 40mMultiple Airlines
Sat 13/99:15 a.m.YYC - STL
1 stop21h 34mMultiple Airlines
Deal found 11/6C$ 387
Mon 7/77:13 p.m.STL - YVR
1 stop17h 22mMultiple Airlines
Wed 16/71:15 p.m.YVR - STL
1 stop18h 37mMultiple Airlines
Deal found 10/6C$ 413
Wed 9/711:24 a.m.STL - YYZ
2 stops25h 41mMultiple Airlines
Tue 15/76:30 a.m.YYZ - STL
1 stop11h 01mMultiple Airlines
Deal found 10/6C$ 413
Mon 15/95:55 a.m.STL - YYZ
1 stop10h 54mAmerican Airlines
Wed 17/911:44 a.m.YYZ - STL
1 stop11h 09mAmerican Airlines
Deal found 11/6C$ 461
Thu 18/97:23 a.m.STL - YUL
1 stop8h 07mAmerican Airlines
Tue 23/95:15 p.m.YUL - STL
1 stop17h 11mAmerican Airlines
Deal found 11/6C$ 465
Tue 12/87:23 a.m.STL - YYC
1 stop17h 06mAmerican Airlines
Tue 19/86:29 a.m.YYC - STL
1 stop12h 56mAmerican Airlines
Deal found 12/6C$ 470
Sun 29/66:12 a.m.STL - YYZ
1 stop9h 38mSun Country Air
Thu 3/711:40 a.m.YYZ - STL
1 stop24h 50mSun Country Air
Deal found 9/6C$ 495
Sun 22/67:30 a.m.STL - YYZ
Nonstop1h 55mAir Canada
Thu 26/611:30 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Deal found 10/6C$ 509
Thu 25/912:25 p.m.STL - YYZ
1 stop7h 37mUnited Airlines
Sun 28/92:10 p.m.YYZ - STL
1 stop25h 17mUnited Airlines
Deal found 10/6C$ 539
Mon 14/710:47 a.m.STL - YUL
2 stops30h 08mMultiple Airlines
Mon 21/78:55 a.m.YUL - STL
3 stops32h 36mMultiple Airlines
Deal found 10/6C$ 550
Wed 10/91:30 p.m.STL - YVR
1 stop8h 46mAir Canada
Sat 13/97:30 a.m.YVR - STL
1 stop10h 08mAir Canada
Deal found 10/6C$ 569
Fri 25/710:47 a.m.STL - YEG
3 stops28h 10mMultiple Airlines
Thu 31/79:30 a.m.YEG - STL
3 stops25h 40mMultiple Airlines
Deal found 10/6C$ 576

Find flights from St. Louis within your budget

Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 June 2025. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

8:44 a.m.-6:24 p.m.

1 stop10h 40m

Calgary

Sat 13/9

9:15 a.m.-7:49 a.m.

1 stop21h 34m

C$ 387

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Mon 7/7

7:13 p.m.-10:35 a.m.

1 stop17h 22m

Vancouver Intl

Wed 16/7

1:15 p.m.-9:52 a.m.

1 stop18h 37m

C$ 413

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 9/7

11:24 a.m.-2:05 p.m.

2 stops25h 41m

Toronto Pearson Intl

Tue 15/7

6:30 a.m.-4:31 p.m.

1 stop11h 01m

C$ 413

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 15/9

5:55 a.m.-5:49 p.m.

1 stop10h 54m

Toronto Pearson Intl

Wed 17/9

11:44 a.m.-9:53 p.m.

1 stop11h 09m

C$ 461

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 18/9

7:23 a.m.-4:30 p.m.

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

5:15 p.m.-9:26 a.m.

1 stop17h 11m

C$ 465

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 12/8

7:23 a.m.-11:29 p.m.

1 stop17h 06m

Calgary

Tue 19/8

6:29 a.m.-8:25 p.m.

1 stop12h 56m

C$ 470

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 29/6

6:12 a.m.-4:50 p.m.

1 stop9h 38m

Toronto Pearson Intl

Thu 3/7

11:40 a.m.-11:30 a.m.

1 stop24h 50m

C$ 495

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 22/6

7:30 a.m.-10:25 a.m.

Nonstop1h 55m

Toronto Pearson Intl

Thu 26/6

11:30 a.m.-12:36 p.m.

Nonstop2h 06m

C$ 509

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 25/9

12:25 p.m.-9:02 p.m.

1 stop7h 37m

Toronto Pearson Intl

Sun 28/9

2:10 p.m.-2:27 p.m.

1 stop25h 17m

C$ 539

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 14/7

10:47 a.m.-5:55 p.m.

2 stops30h 08m

Montreal Pierre Elliott Trudeau Intl

Mon 21/7

8:55 a.m.-4:31 p.m.

3 stops32h 36m

C$ 550

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis 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.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight from St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Pearson Intl. Price data was last updated on 9 June 2025.

The price you pay for your flight from St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis?

Currently, August is the cheapest month in which you can book a flight from St. Louis (average of C$ 269). Flying from St. Louis in February will prove the most costly (average of C$ 498). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from St. Louis?

For flights departing from St. Louis check dates and pricing for the following: Air Canada. This airline departs to the following popular destinations: Toronto.

Air Canada
Air Canada
From C$ 189

What are popular destinations to fly to from St. Louis?

From St. Louis you can expect to find greater availability for the following destinations: Chicago (848 flights per day), Atlanta (243 flights per day) and Dallas (192 flights per day).

New York
New York
From C$ 240
Denver Intl
Denver Intl
From C$ 220
Toronto
Toronto
From C$ 371
Frankfurt am Main
Frankfurt am Main
From C$ 651

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Chicago, with prices starting at C$ 263. Explore other affordable destinations below.

Chicago
Chicago
From C$ 193
Denver Intl
Denver Intl
From C$ 220
New York
New York
From C$ 240
Montreal
Montreal
From C$ 265

Airline reviews for flights from St. Louis

Get insights into the airlines that provide service from 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 airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 629,999 searches.
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,531 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Sun Country Air
6.9
Okay
345 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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Airports servicing St. Louis

Fly out of one of these airports located in St. Louis.
Flights from Kansas City
Flights from Joplin
Flights from Springfield

Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 June 2025.

  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Cancún, Anchorage, Boston. Throughout the year, Cancún, Boston, Atlanta are some of the top choices made by users flying from St. Louis.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as C$ 263 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 617 to fly from St. Louis.

  • What is the cheapest premium economy flight from St. Louis?

    Options for some of the cheapest premium economy flights from St. Louis we have found on Cheapflights are as follows:
    Fly from Lambert-St Louis to Chicago O'Hare Intl Airport starting at C$ 1,443
    Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport starting at C$ 2,712
    Fly from Lambert-St Louis to Toronto Pearson Intl Airport starting at C$ 5,418

  • What is the cheapest first class flight from St. Louis?

    If you’re looking to fly first-class from St. Louis to anywhere, put Denver on your list as prices start at C$ 1,415 for this destination.

  • What is the cheapest month to fly from St. Louis?

    At the present moment the cheapest month to fly from St. Louis is currently August; with February being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from St. Louis?

    Check out the cheapest flights from St. Louis to embark to:
    Travel from St. Louis to Toronto from C$ 427 round trip

  • How does Cheapflights help users find flights from St. Louis?

    When you search for this flight from St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from St. Louis?

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

  • Can Cheapflights find flights from St. Louis with no change fees?

    Certainly. Search results for flights from St. Louis shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from St. Louis today and book when you’re ready!

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How does Cheapflights help users find flights from St. Louis?

When you search for this flight from St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis?

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

Can Cheapflights find flights from St. Louis with no change fees?

Certainly. Search results for flights from St. Louis shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from St. Louis today and book when you’re ready!

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