Cheap flights to St. Louis

BOS — STL
27 Mar — 3 Apr1
Return
1 adult
Economy
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Mon 27/3
Mon 3/4

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Flights to St. Louis in 2023

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, 17% potential price rise
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Cheapest inJanuaryBest time to find cheap flights, 4% potential price drop
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Average priceC$ 593Average for round-trip flights in March 2023
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Round-trip fromC$ 324From Toronto to Lambert-St Louis
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One-way fromC$ 194One-way flight from Toronto to Lambert-St Louis (STL)
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Cheap flights to St. Louis in March, April 2023

The best prices found for STL flights for March, April

One-way flights to St. Louis

The cheapest one-way flights to St. Louis

Find flights to St. Louis within your budget

Use the slider to find flights to St. Louis that fit your budget.

Fly from

Any airport

Budget

C$ 325 - C$ 564

Route

Depart

Return

Price

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-03

1 stop25h 30m

Lambert-St Louis

2023-04-04

1 stop26h 02m

C$ 324

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-03

1 stop25h 30m

Lambert-St Louis

2023-04-04

2 stops24h 59m

C$ 404

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-05-01

3 stops26h 05m

Lambert-St Louis

2023-05-03

1 stop9h 16m

C$ 516

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-18

Nonstop2h 09m

Lambert-St Louis

2023-04-25

1 stop7h 42m

C$ 539

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-11

1 stop6h 05m

Lambert-St Louis

2023-04-19

1 stop4h 46m

C$ 545

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-14

1 stop7h 04m

Lambert-St Louis

2023-04-16

1 stop4h 33m

C$ 546

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-25

1 stop4h 43m

Lambert-St Louis

2023-05-02

1 stop9h 59m

C$ 555

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-05-28

Nonstop2h 09m

Lambert-St Louis

2023-06-04

1 stop5h 22m

C$ 561

Toronto Pearson IntlLambert-St Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

2023-04-20

Nonstop2h 09m

Lambert-St Louis

2023-04-27

Nonstop1h 59m

C$ 564

Flights are sorted by cheapest first

Deals found on 21/3

What is the cheapest month to fly to St. Louis?

The cheapest ticket to St. Louis found for each month in 2023 based on historical flight searches by Cheapflights users.

January

C$ 565

February

C$ 597

March

C$ 668

April

C$ 586

May

C$ 700

June

C$ 685

July

C$ 765

August

C$ 637

September

C$ 661

October

C$ 634

November

C$ 661

December

C$ 545

December is currently the cheapest month to fly to St. Louis. At this moment in time July is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

When is the best time to fly to St. Louis?

Average St. Louis flight ticket prices and weather conditions for 2023 and 2024 by month

YTO - STL

Price

C$ 545 - C$ 1,125

STL

Temperature

0 - 27 °C

STL

Rainfall

56 - 119 mm

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

The best time to book flights to St. Louis is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Which day is cheapest to fly to St. Louis?

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

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

To get the best value, try booking a flight in the evening when visiting St. Louis. Generally the prices will increase for flights at noon as these tend to have higher demand.

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.

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. 

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. 

What is good to know if travelling to St. Louis?

  • Independence Day is celebrated with style in St. Louis. Grab a blanket and a couple chairs and head down to the riverfront for Fourth of July festivities. Grab a spot underneath the Arch and enjoy the spectacle. From people watching, to concerts and outdoor vendors and markets, there is much to do to celebrate America’s birthday. And of course, an amazing fireworks display happens on the riverfront.
  • St. Louis’ Soulard Market Place is home to the best outdoor markets in the city, and also one of the best Mardi Gras party’s in the Midwest.
  • The Butterfly Garden in St. Louis’ suburb, Chesterfield, is a must-see for travellers of any age. Located in Faust Park about 30 minutes west of St. Louis City, the Butterfly Garden is a delight for everyone.
  • You don’t have to be a baseball fan to appreciate Busch Stadium. Take a tour of the Stadium or take in a game.
  • Beer lovers know St. Louis as the home of Anheuser-Busch. Brewed right in the city center, the Anheuser-Busch Brewery offers daily tours, and of course, beer tastings. 

Popular cities in Missouri

Search flights to St. Louis by cabin class

First Classfrom C$ 1,079/person
Business Classfrom C$ 1,147/person
Prem Economyfrom C$ 769/person
Economyfrom C$ 264/person

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