Prices are in Canadian Dollars.

Cheap flights from Lester B. Pearson Intl to St Louis

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The best prices from Lester B. Pearson Intl to St Louis are usually found in July or February, booked 27 days in advance, depart on a Thursday or Friday and return on a Wednesday

How to find the cheapest flight from
Lester B. Pearson Intl (YYZ) to St Louis (STL)

YYZ - STL
Price
C$ 468 - C$ 749
STL
Temperature
7 - 32 °C
STL
Rainfall
57 - 130 mm

Popular in

June

High demand for flights, 26% potential price rise

Cheapest in

July

Best time to find cheap flights, 15% potential price drop

Round-trip from

C$ 468

From Lester B. Pearson Intl to St Louis

One-way from

C$ 204

One-way flight from Lester B. Pearson Intl to St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Lester B. Pearson Intl to St Louis?

Users have found that flying from Lester B. Pearson Intl to St Louis on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Lester B. Pearson Intl to St Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 39 days in advance, which can save you up to 26% on flights from Lester B. Pearson Intl to St Louis compared to booking the week you need them. Waiting 39 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 577. For sooner than that we have options available in the next 3 days from C$ 689.

What is the cheapest month to fly from Lester B. Pearson Intl to St Louis?

Our data shows that February tends to be the cheapest month to fly to St Louis from Lester B. Pearson Intl. Users have commonly found prices around C$ 543 for the month, but tickets can be as low as C$ 218. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Lester B. Pearson Intl to St Louis (YYZ - STL)?

When flying from Lester B. Pearson Intl to St Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 8% versus a flight in the afternoon.

Cheap flights from Lester B. Pearson Intl to St Louis in January, February 2021

The best prices found for YYZ to STL flights for January, February
12 Feb - 17 Feb
C$ 332pp
YYZ
Toronto Pearson Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
17 Feb - 24 Feb
C$ 333pp
YYZ
Toronto Pearson Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
12 Feb - 17 Feb
C$ 355pp
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
   
2 STOPS
YYZ
Toronto Pearson Intl

Lester B. Pearson Intl to St Louis 2021 flight deals

Cheap flights to St Louis from Lester B. Pearson Intl found for this year
12 Feb - 17 Feb
C$ 332pp
YYZ
Toronto Pearson Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
21 Mar - 15 Apr
C$ 333pp
YYZ
Toronto Pearson Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
2 Mar - 16 Mar
C$ 342pp
YYZ
Toronto Pearson Intl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl

Direct flights to St Louis from Lester B. Pearson Intl

Save time with Lester B. Pearson Intl to St Louis direct flight deals
18 Jun - 21 Jun
C$ 616pp
YYZ
Toronto Pearson Intl
Air Canada
Direct
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
Direct
YYZ
Toronto Pearson Intl

One-way flights to St Louis from Lester B. Pearson Intl

The cheapest one-way flights from Lester B. Pearson Intl to St Louis
1:15 p.m. - 6:49 p.m.
United Airlines
1 stop
6h 34m
YYZ - STL
United Airlines
C$ 205
United
10:50 a.m. - 6:49 p.m.
Air Canada
2 stops
8h 59m
YYZ - STL
Air Canada
C$ 216
CheapFlights
7:30 p.m. - 5:08 a.m.
Multiple Airlines
3 stops
58h 38m
YYZ - STL
Multiple Airlines
C$ 3,269
CheapFlights

Related info for your journey

Useful info, stats and facts about Lester B. Pearson Intl to St Louis flights.

Flight FAQs

From Lester B. Pearson Intl to St Louis

Can I find flights from Lester B. Pearson Intl to St Louis for under C$ 380 on Cheapflights?

Yes, there are multiple flights from Lester B. Pearson Intl to St Louis for under C$ 380. The cheapest flight booked recently is on United Airlines for just C$ 332, but on average you can expect to pay C$ 417.

What safety measures are being taken by airlines flying from Toronto Pearson Intl to Lambert-St Louis to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travellers flying from Toronto Pearson Intl to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Toronto Pearson Intl to Lambert-St Louis have flexible cancellations due to COVID-19?

American Airlines, Air Canada, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are there direct flights from Lester B. Pearson Intl to St Louis for under C$ 634 on Cheapflights?

Cheapflights has 1 direct flight from Lester B. Pearson Intl to St Louis under C$ 634. A good price for a direct flight from Lester B. Pearson Intl to St Louis is less than C$ 616.

Does it rain more in Lester B. Pearson Intl or St Louis?

When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Lester B. Pearson Intl is roughly similar to St Louis. You can assume this to be the case over the next 20 days.

Is Lester B. Pearson Intl weather warmer or cooler than St Louis?

We forecast the temperature to be around the 32 °C's in July, on average. The temperature in St Louis is generally hotter than in Lester B. Pearson Intl. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Lester B. Pearson Intl to St Louis?

There are many flights that can get you from Lester B. Pearson Intl to St Louis in 2h 07m. Fly via Air Canada, United Airlines, or Delta to get the fastest option. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from Lester B. Pearson Intl to St Louis round-trip?

Flying on United Airlines is currently your cheapest option to St Louis, with prices starting at C$ 333. Additional round-trip tickets that might be worth considering are offered by Air Canada and Delta, with the lowest prices starting at C$ 348 and C$ 518, respectively. These flights start at 39% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Lester B. Pearson Intl to St Louis one-way?

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as C$ 198. Check flights for Air Canada, as they currently have the next best price.

Alternative routes for Lester B. Pearson Intl to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Lester B. Pearson Intl to St Louis
Today's exchange rate
C$ 1 = $0.79
Average temperature for January in St Louis
7.0 °C
Avg rainfall for January in St Louis
70.0 mm

Airports servicing Toronto

Airports servicing St. Louis

Top 5 airlines flying from Lester B. Pearson Intl to St Louis

The chart below displays the airlines Cheapflights users travelling from Lester B. Pearson Intl to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
WestJet
C$ 199 C$ 325 No cancel fee 60%
Search WestJet flights
American Airlines
C$ 193 C$ 434 No cancel fee 71%
Search American Airlines flights
Delta
C$ 194 C$ 486 No cancel fee N/A
Search Delta flights
United Airlines
C$ 413 C$ 572 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 402 C$ 578 No cancel fee 67%
Search Air Canada flights
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