Cheap flights from Toronto to St. Louis

Toronto
YTO
Lambert-St. Louis
STL

Flight deals from Toronto to St. Louis

Below you can see the best deals on flights Toronto — St. Louis for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 14 September, from $201.

Top 10 cheap flights from Toronto to St. Louis

PD
DL
DL
$ 200

Toronto — St. Louis

10:50—23:42
14 Sep 2026
13 h 52 m
2 stops
PD
DL
DL
$ 200

Toronto — St. Louis

10:50—10:55
14 Sep 2026
25 h 5 m
2 stops
WS
DL
DL
$ 200

Toronto — St. Louis

16:45—09:00
14 Sep 2026
17 h 15 m
2 stops
WS
DL
DL
$ 200

Toronto — St. Louis

16:45—10:55
14 Sep 2026
19 h 10 m
2 stops
WS
DL
DL
$ 200

Toronto — St. Louis

16:45—15:54
14 Sep 2026
24 h 9 m
2 stops
WS
DL
DL
$ 200

Toronto — St. Louis

16:45—09:00
13 Sep 2026
17 h 15 m
2 stops
WS
DL
DL
$ 200

Toronto — St. Louis

16:45—23:42
13 Sep 2026
31 h 57 m
2 stops
PD
DL
DL
$ 205

Toronto — St. Louis

10:50—09:00
13 Sep 2026
23 h 10 m
2 stops
AC
DL
DL
$ 209

Toronto — St. Louis

08:15—23:42
14 Sep 2026
16 h 27 m
2 stops
PD
DL
DL
$ 214

Toronto — St. Louis

13:45—23:16
14 Sep 2026
10 h 31 m
2 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Toronto — St. Louis flight

Looking for cheap flights from Toronto to St. Louis? Compare fares from different airlines, check the flight schedule and travel time — and book your Toronto — St. Louis ticket online at the best price.

The route has direct flights — around 62 flights per week, flights are operated by Air Canada, United Airlines, a nonstop flight takes about 2 h 7 min, the distance between the cities is around 1,065 km.

Planning your trip? You may find our St. Louis travel guide, how to get from the airport into town and St. Louis weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $201Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
1,065 kmDistance
2 h 7 minTravel time
2Airlines
62 / wkFlights

Flight schedule from Toronto to St. Louis

The table shows direct flights from Toronto to St. Louis on the selected date. The flight takes approximately 2 h 7 min. Regular flights are operated by Air Canada and United Airlines. Departures from Pearson International Airport, Billy Bishop Toronto City Airport and Hamilton Airport airports, arrivals at Lambert-St. Louis International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 25 Aug 2026

Flight ticket prices by day: Toronto — St. Louis

Below is a calendar of the lowest flight ticket prices for Toronto — St. Louis by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $201 in September, and the most expensive are around $393 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Toronto to St. Louis by month. Tickets are usually cheapest in February (around $179) and priciest in July (about $264) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$190lowMay$222mediumSep$201low
Feb$179lowJun$243highOct$190low
Mar$232highJul$264highNov$201medium
Apr$211mediumAug$232highDec$253high

Some values are estimated based on seasonality.

When to fly

Weather in St. Louis: it is warmest in July (up to 31 °C on average) and coolest in January (around 5 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · St. Louis

Dry and wet days · St. Louis

Wind speed and direction · St. Louis

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How to get the best deal on a Toronto — St. Louis ticket

  • Book ahead: fares for Toronto — St. Louis are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Toronto is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to St. Louis is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Toronto — St. Louis route are operated by 2 airlines; Air Canada runs the most flights (around 79% of all flights). Compare carriers, flight shares and schedules below.

  • Air CanadaAC
    16x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight YYZ → STL16x/week
      Duration
      2h 7m
      Days
      MTWTFSS
    79.0%Open →
  • United AirlinesUA
    4x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight YYZ → STL4x/week
    21.0%Open →

Cities and airports on the Toronto — St. Louis route

Flights Toronto — St. Louis depart from Pearson International Airport, Billy Bishop Toronto City Airport, Hamilton Airport and Region of Waterloo International Airport and arrive at Lambert-St. Louis International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Toronto

YTO
Canada
About the cityHow to get thereWeatherAll about the country Canada
Arrival

St. Louis

STL
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Toronto — St. Louis flight

How long is the flight from Toronto to St. Louis?

A nonstop Toronto — St. Louis flight takes about 2 h 7 min — the distance between the cities is around 1,065 km.

How far is it from Toronto to St. Louis?

The distance from Toronto to St. Louis is about 1,065 km, which a nonstop flight covers in around 2 h 7 min.

Are there direct flights from Toronto to St. Louis?

Yes, there are nonstop flights Toronto — St. Louis — around 62 flights per week.

Which airlines fly from Toronto to St. Louis?

Airlines operating Toronto — St. Louis include Air Canada, United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Toronto — St. Louis flights use?

Flights from Toronto depart from Pearson International Airport, Billy Bishop Toronto City Airport, Hamilton Airport, and arrive at Lambert-St. Louis International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Toronto to St. Louis?

The price of a Toronto — St. Louis ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $201 and $393. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Toronto — St. Louis?

Flights Toronto — St. Louis are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Toronto to St. Louis?

To catch a low fare Toronto — St. Louis, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Toronto

See all
New York CityMontrealChicagoOttawaVancouverCalgaryHalifaxWashington, D.C.EdmontonDetroitWinnipegBostonLondonAtlantaSt. John'sMinneapolisQuebec CityPhiladelphiaSaskatoonThunder BayOrlandoCancunMonctonCharlotteLos AngelesDallasSan FranciscoReginaLas VegasKelownaNashvilleCharlottetownFort LauderdaleTampaMexico CityLondonVictoriaFrankfurt am MainDublinPunta Cana

Where else you can fly from St. Louis

See all
ChicagoDallasNew York CityAtlantaSeattleMinneapolisDenverHoustonCharlotteWashington, D.C.DetroitPortlandBostonOrlandoPhoenixPhiladelphiaSalt Lake CityMiamiMontrealLos AngelesLas VegasCancunJonesboroFort LauderdaleSan FranciscoLondonTampaFrankfurt am MainPunta CanaQuincyManhattan

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