Cheap flights from Toronto to St. Louis from C$ 217
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto to St. Louis departing on 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from Toronto to St. Louis
Our best Air Canada deals on Toronto to St. Louis flight tickets
American Airlines flights from Toronto to St. Louis
Our best American Airlines deals on Toronto to St. Louis flight tickets
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How to get the cheapest flight ticket from Toronto to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Toronto and St. Louis?
What is the cheapest month to fly to St. Louis?
The month of June is, on average, the cheapest month to fly to St. Louis from Toronto, with most prices found around C$ 536. If you don’t want to visit St. Louis in June, then you should wait until November to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 630.
What is the cheapest day to depart on your flight to St. Louis?
Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 596. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 744.
What is the cheapest time of day to depart on your flight to St. Louis?
The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 534. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 678 on average. Flights to St. Louis from Toronto at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Toronto to Lambert-St Louis flight route?
Fly from Toronto Pearson Intl to Lambert-St Louis for the best Toronto - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Toronto when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 658 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Toronto for as low as C$ 463 on momondo.
What cabin class options are available on Toronto to Lambert-St Louis flights?
There are 1 cabin classes available to choose from on Toronto to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Toronto to Lambert-St Louis?
Air Canada, Delta, and American Airlines are the most popular carriers operating from Toronto to Lambert-St Louis
Which airlines fly to St. Louis?
Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to St. Louis from Toronto according to our data. Air Canada is the first choice among our users, with 77% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from Toronto to St. Louis on average per day?
As of June 2025, 3 flights take off from Toronto and land in St. Louis each day. The most common flight departure time for this route is 6:00p.m., with 53% of daily flights taking off in the evening.
How many flights depart from Toronto to St. Louis on average per week?
As of June 2025, there are 25 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.
When to book flights from Toronto to St. Louis
Cheap Toronto to St. Louis (YTO to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Toronto to St. Louis
Best price found | C$ 217 |
|---|---|
Fastest flight time | 2h 03m |
Direct flights | Every day |
Airports in St. Louis | 1 airport |
How far is Toronto to Lambert-St Louis by plane?
Toronto and Lambert-St Louis are 1062.1 km apart from one another. By plane, this route typically takes 2h 03m.
When did momondo last update prices for flights from Toronto to Lambert-St Louis Airport?
Prices for flights from Toronto to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Toronto to Lambert-St Louis Airport?
As of June 2025, there are 3 operators available to choose from for flights from Toronto to Lambert-St Louis Airport.
How old do you have to be to fly from Toronto to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Toronto to St. Louis?
Based on momondo bookings for flights between Toronto and St. Louis, the leading plane model is Canadair (Bombardier) Regional Jet 900, making up 56.65% of the total bookings. Other popular models include Airbus A220-300 with 37.93%, Airbus A319 with 1.48%, and Airbus A320-100/200 with 1.48%.
What is the most popular airline from Toronto to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Toronto to St. Louis is Air Canada (80% of total bookings). The next most popular airlines are United Airlines (14%) and WestJet (6%).
Best airlines flying from Toronto to St. Louis
Compare and see reviews for airlines that fly from Toronto to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 465 | Free Cancellation | Rating 7.1 9,549 reviews | |||
| PriceFrom C$ 471 | Free Cancellation | Rating 7.4 8,798 reviews | |||
| PriceFrom C$ 548 | Free Cancellation | Rating 7.2 2,873 reviews |
United Airlines Flights From Toronto to St. Louis
Across 14 United Airlines flights from Toronto to St. Louis this week, the average price was C$ 489, with the best United Airlines deals starting from C$ 347 round-trip. 8,798 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Toronto to St. Louis
Another popular option for Toronto to St. Louis flights is Air Canada (7.1/10, 9,553 ratings). Air Canada flies from Toronto to St. Louis around 11 times per week, with deals starting from C$ 342 round-trip and rising to an average price of around C$ 484.
Travelling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Toronto to St. Louis?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Toronto.
Can I find flights from Toronto to St. Louis with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Toronto to St. Louis flights to just show those with flexible booking policies.
How can momondo help me find flights from Toronto to St. Louis?
Once you have performed a search for Toronto to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Toronto to St. Louis right now. Can momondo alert me if prices change?
Price alerts on flights to St. Louis from Toronto are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.