YYZ - STL

C$ 289 Find Cheap Flights from Toronto to St. Louis – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 620
Typical prices: C$ 612-C$ 883
Multiple Airlines
Fri 9/11Fri 16/11
YYZ - STL • 1 stop
Cheapest direct flights
C$ 785
Typical prices: C$ 603-C$ 879
Air Canada
Thu 22/11Sun 2/12
YYZ - STL • Direct
Direct flights
You can fly direct with Air Canada. Average duration is 2h 12m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 728 (round-trip)
Shortest trip • 4h 26m (one-way)
Insights
Insights
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We hope you enjoy your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Toronto to St. Louis (YYZ-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Toronto to St. Louis

Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
6:30 a.m. - 11:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
17h 46m1 stop Orlando
Multiple Airlines Logo
6:34 p.m. - 11:21 a.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
15h 47m2 stops Atlanta Hartsfield-Jackson New York LaGuardia
C$ 620Multiple Airlines
Mon, 14 Dec - Sat, 16 Jan
Multiple Airlines Logo
6:30 a.m. - 12:12 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 42m1 stop Orlando
Multiple Airlines Logo
7:02 p.m. - 1:40 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
17h 38m2 stops Denver Intl Orlando
C$ 637Multiple Airlines
Sun, 22 Nov - Wed, 2 Dec
American Airlines Logo
1:16 p.m. - 8:04 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
7h 48m1 stop Chicago O'Hare Intl
American Airlines Logo
6:48 a.m. - 4:31 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
8h 43m1 stop Washington, D.C. Reagan-National
C$ 637American Airlines
Mon, 2 Nov - Mon, 9 Nov
Multiple Airlines Logo
6:30 a.m. - 11:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
17h 46m1 stop Orlando
Multiple Airlines Logo
6:34 p.m. - 7:17 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
23h 43m2 stops Atlanta Hartsfield-Jackson Tampa
C$ 637Multiple Airlines
Sun, 22 Nov - Wed, 2 Dec
Air Canada Logo
2:10 p.m. - 3:26 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mdirect
Air Canada Logo
4:05 p.m. - 7:05 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mdirect
C$ 785Air Canada
Thu, 29 Oct - Sun, 1 Nov
Air Canada Logo
2:10 p.m. - 3:23 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 13mdirect
Air Canada Logo
4:05 p.m. - 6:59 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
1h 54mdirect
C$ 792Air Canada
Thu, 5 Nov - Sat, 7 Nov
Air Canada Logo
2:10 p.m. - 3:26 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mdirect
Air Canada Logo
4:05 p.m. - 7:05 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mdirect
C$ 792Air Canada
Mon, 14 Dec - Sat, 16 Jan
United Airlines Logo
6:40 p.m. - 10:03 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
16h 23m2 stops Newark Washington, D.C. Dulles Intl
United Airlines Logo
8:30 a.m. - 9:37 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
12h 07m2 stops Washington, D.C. Dulles Intl New York LaGuardia
C$ 898United Airlines
Thu, 5 Nov - Sat, 7 Nov
United Airlines Logo
8:20 a.m. - 3:43 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
8h 23m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 a.m. - 5:57 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 57m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
C$ 925United Airlines
Thu, 5 Nov - Sat, 7 Nov
United Airlines Logo
4:30 p.m. - 11:24 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
7h 54m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 a.m. - 5:57 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 57m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
C$ 983United Airlines
Booking Insights

Price, demand, and travel trends for Toronto Pearson Intl Airport to St. Louis flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Toronto Pearson Intl Airport to St. Louis?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Toronto Pearson Intl Airport to St. Louis. It’s 6% cheaper than the average day, while Monday is the most expensive, with prices 11% higher.

What is the cheapest month to fly from Toronto Pearson Intl Airport to St. Louis?

•January is the cheapest month to fly from Toronto Pearson Intl Airport to St. Louis at C$ 596 round-trip.
•April (C$ 997) and September (C$ 823) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 67% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Toronto Pearson Intl Airport to St. Louis the cheapest?

Flights from Toronto Pearson Intl Airport to St. Louis are cheapest 18 weeks before departure. Booking in this window typically costs about 52% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Toronto to St. Louis

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for Toronto Pearson Intl Airport to St. Louis flights

Low season

May

Cheapest flight

C$ 289
The most popular month to fly with an average 36% increase in traveller numbers.
One-way flight from Toronto Pearson Intl Airport to St. Louis

When to book flights from Toronto to St. Louis

Are your dates flexible? Find out the best times to travel from Toronto to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Toronto Pearson Intl Airport to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Toronto Pearson Intl Airport to St. Louis?

    These are the earliest and latest flight times available from Toronto Pearson Intl Airport to St. Louis:

    • Earliest: departs at 12:55 pm and lands at 3:07 pm
    • Latest: departs at 7:15 pm and lands at 9:27 pm.

    The flight takes about 2h 12m.

  • Which cabin classes can I book on flights from Toronto Pearson Intl Airport to St. Louis?

    Three cabin classes are available on flights from Toronto Pearson Intl Airport to St. Louis:

    • Economy Class
    • Business Class
    • First Class

  • How long does a flight from Toronto Pearson Intl Airport to St. Louis take?

    A direct flight from Toronto Pearson Intl Airport to St. Louis takes 2h 12m, covering 1,692 km.

  • Do I need a passport to fly from Toronto Pearson Intl Airport to St. Louis?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Toronto Pearson Intl Airport to St. Louis flight?

    Round-trip flights from Toronto Pearson Intl Airport to St. Louis range from C$ 612 to C$ 883, with an average of C$ 700 over the past 12 months. Anything below C$ 612 counts as a good deal.

  • How expensive are last-minute Toronto Pearson Intl Airport to St. Louis flights?

    Last-minute fares on this route (booked within two weeks of departure) run 69% above the C$ 700 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Toronto Pearson Intl Airport to St. Louis?

    On this route, direct flights are cheaper than layover options on average. Direct fares average C$ 693 round-trip, compared to C$ 728 via a layover through Chicago O'Hare Intl (ORD).

  • What is the standard checked bag allowance on flights from Toronto Pearson Intl Airport to St. Louis?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 35–C$ 142 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Toronto Pearson Intl Airport to St. Louis?

    The Embraer 175 family is used most often on this route, operated mainly by Air Canada and United Airlines. Other aircraft seen on the route include Canadair (Bombardier) Regional Jet 900 variants.

  • How are flight departures from Toronto Pearson Intl Airport to St. Louis spread across the day?

    Afternoon is the busiest departure period on Toronto Pearson Intl Airport to St. Louis flights, with 100% leaving in that window. Morning departures account for 0%, Evening flights for 0%, and Night flights for 0%.

  • Have flight prices from Toronto Pearson Intl Airport to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 620 to C$ 2,307. That means the highest observed fare was about 4x higher than the lowest one.

  • Which airlines offer Wi-Fi on Toronto Pearson Intl Airport to St. Louis flights?

    Air Canada is the only airline on the Toronto Pearson Intl Airport to St. Louis route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Toronto Pearson Intl Airport to St. Louis looking right now?

    One-way fares from Toronto Pearson Intl Airport to St. Louis are currently lower than usual. Average one-way flight prices are about C$ 420, which is 15% below the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around C$ 44 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Toronto Pearson Intl Airport to St. Louis?

    Flights from Toronto Pearson Intl Airport to St. Louis usually depart from Toronto Pearson Intl (YYZ) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Toronto Pearson Intl Airport to St. Louis pass through?

    One-stop flights from Toronto Pearson Intl Airport to St. Louis most commonly connect through:

    • Chicago O'Hare Intl (ORD) – 69% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) – 27% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) – 2% of one-stop connections
    • Washington, D.C. Reagan-National (DCA) – 2% of one-stop connections

  • Can I save money by using flexible dates for flights from Toronto Pearson Intl Airport to St. Louis?

    Yes. Flexible dates can save you up to 16% on flights from Toronto Pearson Intl Airport to St. Louis. Sunday is the cheapest departure day at C$ 662 round-trip on average, while Monday is the most expensive at C$ 782, a difference of C$ 120.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • Which airlines fly from Toronto Pearson Intl Airport to St. Louis?

    Only Air Canada operates flights between Toronto Pearson Intl Airport and St. Louis.

  • How much time can I save by choosing a different layover airport when travelling from Toronto Pearson Intl Airport to St. Louis?

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 26m, compared with 5h 45m via Chicago O'Hare Intl (ORD) and 5h 55m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Toronto Pearson Intl Airport and St. Louis?

    St. Louis is 1 hour behind Toronto Pearson Intl Airport (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Forest Park Hotel, Hyatt Regency St Louis At The Arch, and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Toronto Pearson Intl Airport to St. Louis flights?

    Among airlines operating Toronto Pearson Intl Airport to St. Louis flights:

    • Air Canada: offers extra legroom; offers free seat selection
    • United Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Toronto Pearson Intl Airport to St. Louis flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Air Canada: a carry-on bag and a checked bag in Economy Class
    • United Airlines: a carry-on bag and a checked bag in Business Class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Toronto Pearson Intl Airport to St. Louis flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average C$ 662, about C$ 120 less than Monday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Toronto Pearson Intl Airport to St. Louis trip for January. Fares historically average C$ 596 round-trip in that month – typically C$ 402 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

Prefer to fly direct from Toronto to St. Louis?

 
Find which airlines fly direct from Toronto Pearson Intl Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Toronto Pearson Intl to Lambert-St Louis

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

Direct returns

Lambert-St Louis to Toronto Pearson Intl

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

More options for your flight from Toronto to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental