Cheap flights from St. Louis (STL) to Toronto (YTO)
The best prices from Lambert-St Louis to Toronto are usually found in December or August, booked 34 days in advance, depart on a Sunday or Saturday and return on a Monday
How to find the cheapest flight from St. Louis to Toronto
All the information you need to plan the best STL to YTO flight in 2022: compare St. Louis to Toronto flight prices with the expected peak season, weather and rainfall in Toronto.
STL - YTO Price | $329 - $516 |
|---|---|
YTO Temperature | 21.2 - 69.8 °F |
YTO Rainfall | 2 - 3.3 inches |
| Popular in | October | High demand for flights, 10% potential price rise |
|---|---|---|
| Cheapest in | December | Best time to find cheap flights, 29% potential price drop |
| Round-trip from | $329 | From Lambert-St Louis to Toronto (YTO) |
| One-way from | $278 | One-way flight from Lambert-St Louis to Toronto (YTO) |
What is the cheapest day to fly round-trip from St. Louis to Toronto?
Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 45% on your flight compared to booking on days when demand is much higher.
How far in advance should I book a flight from St. Louis to Toronto?
To save up to 42% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to Toronto from $513 1-2 weeks out and tickets from $702 for flights departing within the next 72 hours.
What is the cheapest month to fly from St. Louis to Toronto?
December can be a great time to fly to Toronto from St. Louis with a flight ticket averaging about $462. Cheapflights users have found deals in the month of December for as cheap as $188. The most expensive prices can be found in the month of October.
When is the cheapest time to fly from St. Louis to Toronto (STL - YTO)?
It’s typically best to fly out from St. Louis to Toronto in the evening. Doing so could potentially save you 75% on the flight price compared to flying in the morning, which is usually more expensive.
Cheap flights from St. Louis to Toronto in May, June 2022
The best prices found for STL to YTO flights for May, June
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 13mAmerican Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 13mAmerican Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 13mAmerican Airlines
St. Louis to Toronto 2022 flight deals
Cheap flights to Toronto from St. Louis found for this year
Lambert-St Louis
Toronto Pearson Intl
2 stops
26h 35mToronto Pearson Intl
Lambert-St Louis
2 stops
12h 35mMultiple Airlines
Lambert-St Louis
Toronto Pearson Intl
2 stops
26h 30mToronto Pearson Intl
Lambert-St Louis
2 stops
12h 00mMultiple Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
21h 45mToronto Pearson Intl
Lambert-St Louis
2 stops
12h 35mMultiple Airlines
Cheap Air Canada flights from St. Louis to Toronto
Lambert-St Louis
Toronto Pearson Intl
Nonstop
2h 02mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Lambert-St Louis
Toronto Pearson Intl
Nonstop
2h 02mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Lambert-St Louis
Toronto Pearson Intl
Nonstop
1h 59mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Cheap American Airlines flights from St. Louis to Toronto
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 13mAmerican Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
3h 58mAmerican Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
8h 14mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 13mAmerican Airlines
Non-stop flights to Toronto from St. Louis
Save time with St. Louis to Toronto direct flight deals
Lambert-St Louis
Toronto Pearson Intl
Nonstop
2h 02mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Lambert-St Louis
Toronto Pearson Intl
Nonstop
2h 02mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Lambert-St Louis
Toronto Pearson Intl
Nonstop
2h 02mToronto Pearson Intl
Lambert-St Louis
Nonstop
2h 07mAir Canada
Last minute flights from St. Louis to Toronto
Late deals on return flights to Toronto from St. Louis, departing today and this week
Lambert-St Louis
Toronto Pearson Intl
1 stop
10h 00mToronto Pearson Intl
Lambert-St Louis
1 stop
10h 25mUnited Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
4h 57mToronto Pearson Intl
Lambert-St Louis
1 stop
10h 41mAmerican Airlines
Lambert-St Louis
Toronto Pearson Intl
2 stops
16h 30mToronto Pearson Intl
Lambert-St Louis
1 stop
5h 36mUnited Airlines
One-way flights to Toronto All airports from St. Louis
The cheapest one-way flights from St. Louis to Toronto
Lambert-St Louis
Toronto Pearson Intl
2 stops
26h 30mMultiple Airlines
Lambert-St Louis
Toronto Pearson Intl
2 stops
39h 45mMultiple Airlines
Lambert-St Louis
Toronto Pearson Intl
1 stop
24h 30mMultiple Airlines
Related info for your journey
Useful info, stats and facts about St. Louis to Toronto flights.
What airport do you fly from for flights from St. Louis to Toronto?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Toronto. You should not have trouble finding flights to Toronto from Lambert-St Louis; the airport handles an average of 1 outbound flight to Toronto per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the St. Louis airport to Toronto. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.
Which airlines flying from Lambert-St Louis to Toronto have flexible cancellations due to COVID-19?
Some of our airline partners flying from Lambert-St Louis to Toronto have new flexible policies in place due to COVID-19. Air Canada, American Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Air Canada with this kind of flexibility.
Can I find flights from St. Louis to Toronto for under $400 on Cheapflights?
Yes, there are multiple flights from St. Louis to Toronto for under $400. The cheapest flight booked recently is on Multiple Airlines for just $346, but on average you can expect to pay $432.
Are there nonstop flights from St. Louis to Toronto for under $500 on Cheapflights?
Cheapflights has at least 20 direct flights from St. Louis to Toronto under $500. A good price for a nonstop flight from St. Louis to Toronto is less than $492.
Are there last-minute flights available from St. Louis to Toronto for under $600?
There are currently 20+ open flights from St. Louis to Toronto within the next 7 days for less than $600.
What are the cheapest airlines flying from St. Louis to Toronto round-trip?
Our cheapest airline available from St. Louis to Toronto is Air Canada. Our recent data shows that you can find tickets from as low as $425 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $426 and $471 round-trip. Air Canada is currently priced 8% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from St. Louis to Toronto one-way?
$230 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $236 and $246, respectively.
What are the most popular airlines that fly from St. Louis to Toronto?
Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Toronto.
What are the cheapest flights from St. Louis to Toronto?
The cheapest flight price from St. Louis to Toronto is $213. On average you can expect to pay $542. The most popular route, (Lambert-St Louis - Toronto Pearson Intl), can usually be booked for $346.
Other flights from St. Louis
Can I fly to Toronto from Lambert-St Louis right now?
Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Toronto.
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Toronto.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Toronto.
Can I fly back to Lambert-St Louis from Toronto?
COVID-19 testing requirements
Visitors from Toronto must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Toronto are not required to quarantine after entering Lambert-St Louis.
Alternative routes for St. Louis to Toronto
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from St. Louis to Toronto
The chart below displays the airlines Cheapflights users traveling from St. Louis to Toronto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from St. Louis to Toronto
See what time of day planes typically take off from St. Louis to Toronto
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 100%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Weekly flight availability from St. Louis to Toronto
See how many times per day planes take to the skies headed from St. Louis to Toronto
| Sunday | 1daily flight |
|---|---|
| Monday | 1daily flight |
| Tuesday | 1daily flight |
| Wednesday | 1daily flight |
| Thursday | 1daily flight |
| Friday | 1daily flight |
| Saturday | 1daily flight |