Cheap Flights from St Louis to Toronto

Compare St Louis to Toronto flight deals

Find the cheapest month or even day of the year to fly to Toronto

Book the best Toronto fare with no extra fees

Flight deals from St Louis to Toronto

Looking for a cheap last-minute deal or the best return flight from St Louis to Toronto? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Toronto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Toronto flights are currently cheapest in December.

Direct flights from St Louis to Toronto

Alternative St Louis to Toronto routes

Looking for the cheapest, fastest or easiest route from St Louis to Toronto? You could fly into the following airports instead.

St Louis to Toronto: Flight information

The things to know before you go.
Cheapest flight found269 €
Cheapest month to flyDecember
Average flight time1 hr, 58 mins
Most popular airlineAir Canada
Average flights per week34

Finding cheap flights from St Louis to Toronto: Frequently asked questions

There are 4 airports in Toronto: Toronto Island, Toronto Pearson International, Hamilton, and Kitchener / Waterloo.
The best price we found for a return flight from St Louis to Toronto is 269 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 58 minutes is the average flight time from St Louis to Toronto.
Air Canada, United and PAL Airlines fly direct from St Louis to Toronto.
As of October 2024, there are 34 flights per week flying from St Louis to Toronto.
The cheapest month to fly from St Louis to Toronto is usually October 2024.
If you're flying from St Louis Airport, the cheapest airport near Toronto is Toronto Pearson International – which is 20.4 km away from the centre of Toronto. We've found flights into this airport from 269 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Toronto on Wednesday, 4 December 2024.
Yes – the average flight time is 1 hour and 58 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Toronto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Toronto is around 40 days in advance, so don’t leave your flight to the last minute.
In October, the average temperature is usually around 10°C. July is typically the warmest month in Toronto, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -8°C. The rainiest month is September.
Currently, Frontier Airlines and Air Canada offer the cheapest flight tickets to Toronto.

How to find cheap flights to Toronto from St Louis

Looking for cheap tickets from St Louis to Toronto? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from St Louis to Toronto. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Toronto from St Louis from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best St Louis-Toronto ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Toronto from St Louis.
  • Set up a Price Alert. You can easily track the fare of your cheap St Louis-Toronto flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between St Louis and Toronto? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from St Louis and Toronto. We scour the internet for the best Business, Premium Economy and First Class flight fares to Toronto, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for St Louis to Toronto flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Combine your flight to Toronto from St Louis with hotels and car hire

    Once you've secured your cheap flight ticket from St Louis to Toronto, discover the best prices and exclusive rates for hotels in Toronto or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Prices shown on this page are estimated lowest prices only. Found in the last 45 days.