Cheap Flights to St Louis

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Home North America USA Missouri Cheap flights to St Louis, Missouri

Flights to St Louis in 2021

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inJuneHigh demand for flights, 9% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 3% potential price drop
Average priceC$ 525Average for round-trip flights in April 2021
Round-trip fromC$ 371From Toronto to St. Louis
One-way fromC$ 232One-way flight from Toronto to St. Louis

Cheapest prices for St Louis flights by month

The cheapest ticket to St Louis found for each month in 2021 based on historical flight searches by Cheapflights users.
January
C$ 363
February
C$ 366
March
C$ 510
April
C$ 375
May
C$ 499
June
C$ 472
July
C$ 519
August
C$ 453
September
C$ 456
October
C$ 457
November
C$ 402
December
C$ 436
Currently, January is the cheapest month in which you can book a flight to St Louis. Flying to St Louis in July will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the best time to fly to St Louis?

Average Lambert-St Louis flight ticket prices and weather conditions for 2021 and 2022 by month.
YTO - STL
Price
C$ 363 - C$ 678
STL
Temperature
7 - 32 °C
STL
Rainfall
57 - 130 mm
January is typically the best time to fly to St Louis, but there are other times where great deals are available. If you are looking for warm weather when you arrive off of your flight to St Louis then July is statistically the hottest. May is historically the period with most rainfall.

When is the best time to book a flight to St Louis?

The price you pay for your flight to St Louis may vary depending on when you book. For the best chance of a lower fare, look to book 39 days in advance of your trip. Fares are likely to increase in the final two weeks or so before your departure date.

Which day is cheapest to fly to St Louis?

The cheapest flights to St Louis are usually found when departing on a Tuesday. The departure day with the highest cost at present is Monday.

What time of day is cheapest to fly to St Louis?

St Louis flights can be made cheaper if you choose a flight at noon. Booking a flight in the evening will likely mean higher prices.

Standing 192 metres high and constructed completely of stainless steel, the Gateway Arch greets visitors on St. Louis flights every year. Prior to its formation in 1965, St. Louis welcomed travellers from all over the world who were heading westward in search of new opportunities and a new life. In the early 1900s, the Show Me State hosted the World’s Fair and as a result, witnessed the beginning of the city’s innovation and technology boom.

Visitors booking flights to St. Louis today have a plethora of options at their fingertips. The city is blanketed with history, but also rich in entertainment. Travellers book flights to St. Louis every summer for one of the best Independence Day celebrations in the nation. Take a tour around downtown St. Louis and visit the Anheuser-Busch Brewery and Busch Stadium, home of MLB St. Louis Cardinals.

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St Louis climate

St Louis has moderate, seasonal weather, but storms can occur at any time of the year. July and August are the hottest and most humid months of the year, and January and February are cold, usually with snow. Winter temperatures range from below 0 to 13 degrees (C), while summers have daily temperatures of between 14 to 32 degrees. 

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When is the best time to fly to St Louis?

Peak Season

Summers in St. Louis are hot and humid, but this is also the best time to visit if you want to take part in the riverfront activities. St. Louis is a big baseball town, and the St. Louis Cardinals draw thousands of fans a year. If you’re planning to visit St. Louis during the spring and summer seasons, book flights early and make accommodations ahead of time. The city gets full fast.

Off Season

St. Louis is prone to long, cold winters.  The city all but shuts down during the wintertime and while many tourist attractions are open to the public, none of the outside activities are much fun in the snow. However, if you’re heading to St. Louis for some football time or to explore the excellent museums, you’re likely to find a cheap flight to St. Louis in the winter.

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Getting around St Louis

You won’t need a car in downtown St Louis. You can get almost anywhere downtown with the St Louis MetroLink, which hits most of the area’s tourist attractions. There are even some shuttle buses connecting the MetroLink stations to the attractions. MetroBus, which is part of the same system, can get you farther out into the city. Rent a car if you’d like. St Louis is easy to navigate and you can take the highways out to top tourist neighbourhoods like University City, Central West End and Clayton. Most hotels and tourist attractions have a taxi stand if you need a cab. You can also call for a taxi ahead of time. 

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Cheap flights to St. Louis in April, May 2021

The best prices found for STL flights for April, May
16 Apr - 23 Apr
C$ 588pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
16 Apr - 23 Apr
C$ 637pp
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYZ
Toronto Pearson Intl
16 Apr - 23 Apr
C$ 648pp
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
   
2 STOPS
YYZ
Toronto Pearson Intl

St. Louis 2021 flight deals

Cheap flights to St. Louis found for this year
1 Aug - 31 Aug
C$ 366pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
1 Aug - 31 Aug
C$ 462pp
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
   
2 STOPS
YYZ
Toronto Pearson Intl
16 Apr - 23 Apr
C$ 588pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl

Alternative, similarly priced destinations

See alternative destinations where airfare is generally forecast to be close to St Louis flight prices.

St Louis, Missouri airports

See all airports in St Louis, select one to find and compare flight prices.

Cheapest flights to USA

Not set on St Louis? See the cheapest flights to Canada. Airfare prices updated on April 14, 2021.
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