YYZ - STL

$189 Find Cheap Flights from Toronto to St. Louis - Compare and Save

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Everything you should know

Cheapest round-trip
$342
Typical prices: $430-$620
American Airlines
Tue 12/11Tue 12/18
YYZ - STL • 1 stop
Cheapest non-stop
$646
Typical prices: $423-$617
Air Canada
Mon 11/19Thu 11/22
YYZ - STL • Non-stop
Nonstop flights
You can fly direct with Air Canada. Average duration is 2h 16m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers 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 $511 (round-trip)
Shortest trip • 4h 26m (one-way)
Insights
Insights
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We hope you love 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

Fri, Dec 11 - Fri, Dec 18
American Airlines Logo
11:36 am - 7:58 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
9h 22m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 5:40 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 40m1 stop Chicago O'Hare Intl
$342American Airlines
Thu, Dec 17 - Thu, Dec 31
American Airlines Logo
1:20 pm - 10:32 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
10h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 2:44 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
7h 44m1 stop Chicago O'Hare Intl
$342American Airlines
Thu, Dec 10 - Tue, Dec 15
Multiple Airlines Logo
1:40 pm - 10:57 amYYZ  Toronto Pearson Intl-STL Lambert-St Louis
22h 17m2 stops Austin Bergstrom Denver Intl
Multiple Airlines Logo
6:20 pm - 1:40 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
18h 20m1 stop Orlando
$375Multiple Airlines
Thu, Dec 10 - Tue, Dec 15
Multiple Airlines Logo
6:30 am - 12:12 amYYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 42m1 stop Orlando
Multiple Airlines Logo
6:20 pm - 1:40 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
18h 20m1 stop Orlando
$384Multiple Airlines
Thu, Dec 17 - Tue, Jan 5
United Airlines Logo
3:35 pm - 11:38 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
9h 03m1 stop Chicago O'Hare Intl
United Airlines Logo
9:05 am - 7:10 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
9h 05m1 stop Chicago O'Hare Intl
$574United Airlines
Wed, Dec 16 - Tue, Jan 5
United Airlines Logo
8:35 am - 5:05 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
9h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
8:15 am - 7:10 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
9h 55m1 stop Chicago O'Hare Intl
$574United Airlines
Wed, Dec 16 - Fri, Jan 8
United Airlines Logo
6:45 am - 2:41 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
8h 56m1 stop Chicago O'Hare Intl
United Airlines Logo
8:15 am - 6:45 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
9h 30m1 stop Chicago O'Hare Intl
$574United Airlines
Thu, Nov 19 - Sun, Nov 22
Air Canada Logo
2:10 pm - 3:26 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mnonstop
Air Canada Logo
4:05 pm - 7:05 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mnonstop
$646Air Canada
Tue, Dec 1 - Tue, Dec 8
Air Canada Logo
2:10 pm - 3:26 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mnonstop
Air Canada Logo
4:05 pm - 7:05 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mnonstop
$659Air Canada
Tue, Dec 8 - Sat, Dec 12
Air Canada Logo
2:10 pm - 3:26 pmYYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mnonstop
Air Canada Logo
4:05 pm - 7:05 pmSTL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mnonstop
$659Air Canada
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.

How much is a round-trip flight from Toronto Pearson Intl Airport to St. Louis?

Round-trip flights from Toronto Pearson Intl Airport to St. Louis typically range from $430 to $620. The lowest price found in the past 5 days was $342, on American Airlines.

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’s 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 $418 round-trip.
•April ($700) and September ($578) 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, United Airlines and YYZ

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

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

Low season

May

Cheapest flight

$189
Beat the crowds with an average 24% drop in travelers.
The most popular month to fly with an average 26% increase in travelers.
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 2:10 pm and lands at 4:26 pm
    • Latest: departs at 2:10 pm and lands at 4:26 pm.

    The flight takes about 2h 16m.

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

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

    • Economy Class
    • First Class

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

    A nonstop flight from Toronto Pearson Intl Airport to St. Louis takes 2h 16m, covering 653 miles.

  • 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 $430 to $620, with an average of $491 over the past 12 months. Anything below $430 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 $491 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, nonstop flights are cheaper than layover options on average. Nonstop fares average $486 round-trip, compared to $511 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 $35–$100 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 Canadair (Bombardier) Regional Jet 900 family is used most often on this route, operated mainly by United Airlines and Air Canada. Other aircraft seen on the route include Embraer 175 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% of flights 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 $342 to $1,661. That means the highest observed fare was about 5x 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 $297, which is 14% 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 averaging $78 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 $465 round-trip on average, while Monday is the most expensive at $549, a difference of $84.

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

  • What 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 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.

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

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center 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 cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Business Class

    Bag 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 $465, about $84 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 $418 round-trip in that month - typically $282 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 direct 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 direct flights

More options for your flight from Toronto to St. Louis

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