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C$ 148+ 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 21/10. 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
3 Aug — 10 Aug1
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 29 July 2025.

Cheapest airline

Air Canada

Good round-trip deal

C$ 393 or less

Good one-way deal

C$ 336 or less
On average, Air Canada currently has the cheapest one-way flight from Lambert-St Louis (avg. price of C$ 686).
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Price to beat on a round-trip 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 29 July 2025.

Sat 23/83:02 p.m.STL - YVR
1 stop22h 13mMultiple Airlines
Wed 3/98:30 p.m.YVR - STL
2 stops16h 34mMultiple Airlines
Deal found 27/7C$ 390
Thu 4/97:55 p.m.STL - YYC
1 stop19h 50mMultiple Airlines
Sun 7/94:20 p.m.YYC - STL
1 stop15h 46mMultiple Airlines
Deal found 27/7C$ 407
Wed 3/99:56 a.m.STL - YYC
1 stop14h 23mAmerican Airlines
Wed 10/96:29 a.m.YYC - STL
1 stop14h 24mAmerican Airlines
Deal found 28/7C$ 449
Thu 21/82:02 p.m.STL - YYZ
1 stop7h 42mMultiple Airlines
Sun 24/88:00 p.m.YYZ - STL
1 stop19h 21mMultiple Airlines
Deal found 27/7C$ 450
Tue 26/86:06 a.m.STL - YYZ
1 stop10h 35mAmerican Airlines
Tue 2/93:14 p.m.YYZ - STL
1 stop8h 03mAmerican Airlines
Deal found 27/7C$ 454
Wed 10/96:10 a.m.STL - YUL
1 stop9h 23mAmerican Airlines
Wed 17/912:31 p.m.YUL - STL
1 stop10h 22mAmerican Airlines
Deal found 27/7C$ 458
Tue 26/87:35 a.m.STL - YVR
2 stops11h 25mDelta
Tue 2/93:31 p.m.YVR - STL
2 stops15h 05mDelta
Deal found 27/7C$ 484
Sun 7/910:35 a.m.STL - YUL
2 stops12h 52mMultiple Airlines
Fri 14/119:25 a.m.YUL - STL
2 stops8h 10mMultiple Airlines
Deal found 27/7C$ 531
Sat 23/84:00 p.m.STL - YVR
1 stop10h 55mAir Canada
Wed 3/98:50 a.m.YVR - STL
1 stop9h 07mAir Canada
Deal found 27/7C$ 545
Sat 23/86:00 a.m.STL - YVR
1 stop8h 48mAlaska Airlines
Sat 30/86:00 a.m.YVR - STL
1 stop6h 39mAlaska Airlines
Deal found 27/7C$ 556
Fri 22/82:01 p.m.STL - YEG
2 stops24h 56mMultiple Airlines
Mon 25/811:15 a.m.YEG - STL
1 stop11h 44mMultiple Airlines
Deal found 27/7C$ 565
Sat 11/105:15 a.m.STL - YVR
2 stops10h 38mUnited Airlines
Tue 14/1010:30 a.m.YVR - STL
1 stop10h 05mUnited Airlines
Deal found 27/7C$ 569

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 29 July 2025. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 23/8

3:02 p.m.-11:15 a.m.

1 stop22h 13m

Vancouver Intl

Wed 3/9

8:30 p.m.-3:04 p.m.

2 stops16h 34m

C$ 390

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

7:55 p.m.-2:45 p.m.

1 stop19h 50m

Calgary

Sun 7/9

4:20 p.m.-9:06 a.m.

1 stop15h 46m

C$ 407

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 3/9

9:56 a.m.-11:19 p.m.

1 stop14h 23m

Calgary

Wed 10/9

6:29 a.m.-9:53 p.m.

1 stop14h 24m

C$ 449

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 21/8

2:02 p.m.-10:44 p.m.

1 stop7h 42m

Toronto Pearson Intl

Sun 24/8

8:00 p.m.-2:21 p.m.

1 stop19h 21m

C$ 450

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 26/8

6:06 a.m.-5:41 p.m.

1 stop10h 35m

Toronto Pearson Intl

Tue 2/9

3:14 p.m.-10:17 p.m.

1 stop8h 03m

C$ 454

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 10/9

6:10 a.m.-4:33 p.m.

1 stop9h 23m

Montreal Pierre Elliott Trudeau Intl

Wed 17/9

12:31 p.m.-9:53 p.m.

1 stop10h 22m

C$ 458

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 26/8

7:35 a.m.-5:00 p.m.

2 stops11h 25m

Vancouver Intl

Tue 2/9

3:31 p.m.-8:36 a.m.

2 stops15h 05m

C$ 484

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 7/9

10:35 a.m.-12:27 a.m.

2 stops12h 52m

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

9:25 a.m.-4:35 p.m.

2 stops8h 10m

C$ 531

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 23/8

4:00 p.m.-12:55 a.m.

1 stop10h 55m

Vancouver Intl

Wed 3/9

8:50 a.m.-7:57 p.m.

1 stop9h 07m

C$ 545

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 23/8

6:00 a.m.-12:48 p.m.

1 stop8h 48m

Vancouver Intl

Sat 30/8

6:00 a.m.-2:39 p.m.

1 stop6h 39m

C$ 556

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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 25 July 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 12 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, June is the cheapest month in which you can book a flight from St. Louis (average of C$ 246). Flying from St. Louis in February will prove the most costly (average of C$ 499). 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$ 218
Frontier
Frontier
From C$ 105

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 (798 flights per day), Atlanta (257 flights per day) and Detroit (226 flights per day).

New York
New York
From C$ 240
Toronto
Toronto
From C$ 404
Frankfurt am Main
Frankfurt am Main
From C$ 651
Chicago
Chicago
From C$ 1,183

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

The cheapest city to fly to from St. Louis is New York, with prices starting at C$ 330. Explore other affordable destinations below.

New York
New York
From C$ 240
Montreal
Montreal
From C$ 265
Detroit
Detroit
From C$ 286
Los Angeles
Los Angeles
From C$ 376

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.
Read through reviews of airlines serving St. Louis, such as United Airlines,American Airlines, andAir Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,893 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,893 reviews
United Airlines
7.4
Good
8,893 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,893 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,893 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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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 29 July 2025.

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

    This month, the top selected destinations from St. Louis are Cancún, Atlanta, 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$ 330 to New York LaGuardia Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 870 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$ 1,448
    Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport starting at C$ 2,721
    Fly from Lambert-St Louis to Toronto Pearson Intl Airport starting at C$ 5,436

  • 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$ 1,420 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 June; 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$ 513 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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