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C$ 143+ Cheap flights from St. Louis

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 24/10. 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
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Cheapest airline

Air Canada

Good round-trip deal

C$ 516 or less

Good one-way deal

C$ 339 or less
On average, Air Canada currently has the cheapest one-way flight from Lambert-St Louis (avg. price of C$ 672).
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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 11 September 2025.

Thu 20/119:54 p.m.STL - YVR
1 stop26h 26mMultiple Airlines
Thu 4/125:30 p.m.YVR - STL
1 stop25h 25mMultiple Airlines
Deal found 9/9C$ 310
Sat 25/104:51 p.m.STL - YVR
1 stop9h 11mMultiple Airlines
Sat 1/117:00 a.m.YVR - STL
2 stops49h 07mMultiple Airlines
Deal found 10/9C$ 360
Thu 9/1010:57 a.m.STL - YYZ
1 stop11h 55mMultiple Airlines
Thu 16/101:30 p.m.YYZ - STL
2 stops23h 13mMultiple Airlines
Deal found 9/9C$ 362
Sat 25/104:34 p.m.STL - YYC
1 stop21h 00mAmerican Airlines
Sat 1/116:45 a.m.YYC - STL
2 stops14h 23mAmerican Airlines
Deal found 9/9C$ 395
Thu 30/1010:57 a.m.STL - YYZ
1 stop26h 43mMultiple Airlines
Sun 2/114:00 p.m.YYZ - STL
2 stops42h 07mMultiple Airlines
Deal found 11/9C$ 396
Sat 11/108:00 p.m.STL - YYC
1 stop17h 34mAmerican Airlines
Tue 14/101:29 p.m.YYC - STL
1 stop9h 25mAmerican Airlines
Deal found 10/9C$ 403
Sat 8/114:51 p.m.STL - YVR
1 stop9h 24mMultiple Airlines
Sun 9/1111:00 p.m.YVR - STL
2 stops12h 17mMultiple Airlines
Deal found 11/9C$ 409
Thu 23/1011:32 a.m.STL - YVR
1 stop11h 16mMultiple Airlines
Sat 25/109:45 a.m.YVR - STL
2 stops21h 37mMultiple Airlines
Deal found 11/9C$ 410
Fri 3/109:56 a.m.STL - YYC
1 stop14h 25mAmerican Airlines
Fri 10/101:29 p.m.YYC - STL
1 stop17h 40mAmerican Airlines
Deal found 9/9C$ 414
Wed 22/108:04 p.m.STL - YQB
1 stop16h 32mAmerican Airlines
Sat 25/104:14 p.m.YQB - STL
1 stop27h 55mAmerican Airlines
Deal found 10/9C$ 414
Tue 21/104:34 p.m.STL - YYC
1 stop21h 00mAmerican Airlines
Sun 26/101:29 p.m.YYC - STL
1 stop9h 25mAmerican Airlines
Deal found 11/9C$ 418
Sat 4/105:25 p.m.STL - YYC
1 stop20h 06mAmerican Airlines
Fri 10/101:29 p.m.YYC - STL
1 stop17h 40mAmerican Airlines
Deal found 10/9C$ 420

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 11 September 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

Thu 20/11

9:54 p.m.-10:20 p.m.

1 stop26h 26m

Vancouver Intl

Thu 4/12

5:30 p.m.-8:55 p.m.

1 stop25h 25m

C$ 310

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 8/11

4:51 p.m.-12:15 a.m.

1 stop9h 24m

Vancouver Intl

Sun 9/11

11:00 p.m.-1:17 p.m.

2 stops12h 17m

C$ 409

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 3/10

9:56 a.m.-11:21 p.m.

1 stop14h 25m

Calgary

Fri 10/10

1:29 p.m.-8:09 a.m.

1 stop17h 40m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 10/10

4:34 p.m.-1:36 p.m.

1 stop20h 02m

Québec City

Fri 24/10

4:14 p.m.-9:09 a.m.

1 stop17h 55m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 13/10

4:34 p.m.-1:36 p.m.

1 stop20h 02m

Québec City

Fri 17/10

4:14 p.m.-8:09 a.m.

1 stop16h 55m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 22/10

8:04 p.m.-1:36 p.m.

1 stop16h 32m

Québec City

Sat 25/10

4:14 p.m.-7:09 p.m.

1 stop27h 55m

C$ 414

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 11/10

8:00 p.m.-12:30 p.m.

1 stop18h 30m

Vancouver Intl

Wed 15/10

1:28 p.m.-8:09 a.m.

1 stop16h 41m

C$ 430

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sun 5/10

8:03 p.m.-12:30 p.m.

1 stop18h 27m

Vancouver Intl

Fri 10/10

1:28 p.m.-8:09 a.m.

1 stop16h 41m

C$ 430

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 23/10

10:57 a.m.-2:05 p.m.

1 stop26h 08m

Toronto Pearson Intl

Sun 26/10

8:00 p.m.-7:26 p.m.

2 stops24h 26m

C$ 432

St. LouisSaskatoon

STL - YXE

STLYXE

Lambert-St Louis

Sat 25/10

4:51 p.m.-11:22 p.m.

1 stop31h 31m

Saskatoon

Wed 29/10

3:45 p.m.-1:57 p.m.

2 stops21h 12m

C$ 455

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 29 August 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$ 248). Flying from St. Louis in February will prove the most costly (average of C$ 504). 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 (869 flights per day), Dallas (159 flights per day) and Denver (95 flights per day).

Toronto
Toronto
From C$ 252
New York
New York
From C$ 240
Frankfurt am Main
Frankfurt am Main
From C$ 651
Chicago
Chicago
From C$ 164

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$ 227. Explore other affordable destinations below.

Chicago
Chicago
From C$ 164
New York
New York
From C$ 240
Toronto
Toronto
From C$ 252
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 Air 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.
Air Canada
7.1
Good
10,000 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

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Airports servicing St. Louis

Fly out of one of these airports located in St. Louis.
Flights from Kansas City
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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 11 September 2025.

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

    This month, the top selected destinations from St. Louis are Boston, Athens, Cancún. 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$ 227 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 701 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$ 1,462
    Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport starting at C$ 2,748
    Fly from Lambert-St Louis to Toronto Pearson Intl Airport starting at C$ 5,491

  • 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.

  • 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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