Cheap flights from Toronto to St. Louis from $160
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 7/15. 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
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Delta flights from Toronto to St. Louis
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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?
In general, June is the cheapest month to fly from Toronto to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $390. The month of November is another great option to travel to St. Louis, with average flight prices from Toronto averaging around $464.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $324. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $541. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Toronto in the morning is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $487 per ticket.
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 $486 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 $341 on momondo.
What cabin class options are available on Toronto to Lambert-St Louis flights?
There are 3 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.
How many flights depart from Toronto to St. Louis on average per day?
3 flights are operational daily from Toronto to St. Louis as of June 2025. The most popular departure time for this route is 6:00PM, with 53% of flights per day taking off in the evening.
How many flights depart from Toronto to St. Louis on average per week?
As of June 2025, there are 24 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 17% 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
How far is Toronto to Lambert-St Louis by plane?
Lambert-St Louis is 659.9 mi away from Toronto. A reasonable flight in good conditions will take 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?
There are 2 operators available for flights from Toronto to Lambert-St Louis Airport as of June 2025.
How old do you have to be to fly from Toronto to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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?
momondo data reveals that the most frequently booked airline on the route from Toronto to St. Louis is Air Canada, representing 69% of all bookings. The subsequent popular airlines are United Airlines at 16% and American Airlines at 15%.
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 $324 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $371 | Free Cancellation | Rating 7.4 8,790 reviews |
United Airlines Flights From Toronto to St. Louis
United Airlines flight deals from Toronto to St. Louis start from $371 round-trip. Over the 14 United Airlines flights for this route in a normal week, average airfare is usually $499 round-trip - but some users have found much cheaper deals with momondo.
Air Canada Flights From Toronto to St. Louis
$324 is the best Air Canada flight deal from Toronto to St. Louis found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to $476, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 9,537 user reviews) flies into St. Louis from Toronto 10 times in an average week so prices can vary.
Traveling 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?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Toronto to St. Louis. momondo saves you time and could save you money on your trip.
Can I find flights from Toronto to St. Louis with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to St. Louis from Toronto with this policy.
How can momondo help me find flights from Toronto to St. Louis?
Once all potential Toronto to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Toronto to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Toronto to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.