Cheap Flights to St. Louis , MO from CA $129

View CA $129 flight on Fri, Apr 24, 2026Opens in a new window

Popular airlines to St. Louis

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to St. Louis?

Prices were available within the past 7 days and start at CA $129 for one-way flights and CA $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Apr 24 - Tue, Apr 28
SEA
Seattle
STL
St. Louis
CA $239 Roundtrip, found 5 days ago
CA $239
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $239 found 5 days ago
American Airlines
Fri, Apr 24 - Tue, Apr 28
SEA
Seattle
STL
St. Louis
CA $252 Roundtrip, found 5 days ago
CA $252
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $252 found 5 days ago
Alaska Airlines
Fri, Apr 24 - Tue, Apr 28
SEA
Seattle
STL
St. Louis
CA $259 Roundtrip, found 5 days ago
CA $259
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $259 found 5 days ago
Hawaiian Airlines
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
STL
St. Louis
CA $295 Roundtrip, found 3 days ago
CA $295
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Apr 7 from Seattle to St. Louis, returning Tue, Apr 21, priced at CA $295 found 3 days ago
United
Mon, Apr 27 - Tue, Apr 28
YVR
Vancouver
STL
St. Louis
CA $343 Roundtrip, found 1 day ago
CA $343
Roundtrip
found 1 day ago
Select United flight, departing Mon, Apr 27 from Vancouver to St. Louis, returning Tue, Apr 28, priced at CA $343 found 1 day ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

October is typically the cheapest month to fly

From CA $193 - CA $632 per traveller.

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Expedia.ca gives you the best tools to secure great deals on flights to St. Louis. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to St. Louis. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to St. Louis.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your St. Louis flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to St. Louis.

Looking to save even more? Get additional savings by bundling your St. Louis flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your St. Louis trip!

Frequently asked questions

What is the name of St. Louis' airport?
Book a flight to St. Louis and you'll be stepping off the plane at Lambert-St. Louis Intl. Airport (STL).
How far is Lambert-St. Louis Intl. Airport (STL) from central St. Louis?
Lambert Field is 19 kilometres from downtown St. Louis, so you'll have a reasonable commute into the heart of the city.
What airport is best to fly into St. Louis?
Situated 19 kilometres from the downtown area, Lambert-St. Louis Intl. Airport (STL) is your gateway to St. Louis.
How many airlines fly to St. Louis?
There are 12 airlines that service St. Louis from 61 airports across the globe.
Which airlines fly to St. Louis?
United Airlines and American Airlines are some of the leading airlines that offer flights to St. Louis. Travellers often choose Chicago as a starting point with United Airlines operating the most flights on this route.
How many nonstop flights are there to St. Louis?
Planning an awesome St. Louis escape is a walk in the park when there are 1,206 direct flights every week to select from.
Where are the most popular flights to St. Louis departing from?
A large number of flights to St. Louis leave from Chicago, Dallas and New York airports.
How long is the flight to St. Louis Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Chicago to St. Louis, the average flight time is 1 hour and 22 minutes. From Dallas it's roughly 1 hour and 43 minutes, and from New York it's 3 hours and 1 minute.
How to book the cheapest flight to St. Louis?
If you'd like to have some extra spending money on your St. Louis vacation, then listen up! As every seasoned jet-setter knows, don't book at the very last minute. Airfares are usually highest close to the departure date. Also, shop around and compare your options. If your destination has multiple airports, you may be able to nab an excellent deal by flying into a less busy terminal. Last but not least, be ready to book quickly if you find a great price. It might not be available for too long! With a bit of know-how and a little good fortune, the ideal airfare will be yours.
Do you have any tips for my flight to St. Louis?
Wherever you're jetting in from, flying can be a pleasurable experience if you prepare well enough. We've made a list of handy hints that will get your St. Louis vacation started on the right note. What to pack in your hand luggage:

  • Air travel can be a great experience if you've got all the right stuff. Firstly, you'll need basic toiletries, such as deodorant, toothpaste and a toothbrush, a clean set of clothes and a good read. Next, find a spot in your hand luggage for your electronic devices, chargers, any vital medications and perhaps a quality neck pillow too. Last, but definitely not least, remember to bring your passport, travel docs and your credit cards.

Do not pack the following items in your hand luggage:

  • Squeeze all your full-sized bottles of shampoo and conditioner in your checked luggage. Any liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by security. Sharp or pointed objects, like a Swiss Army knife, and products which are flammable or explosive, such as flares, chemicals agents and fireworks, are also banned.

What to wear on a flight:

  • Comfort should be your highest priority when choosing what to wear on your flight. Loose clothing is a smart option, as are flat, slip-on shoes.
  • Deep vein thrombosis (DVT) can pose a risk on long-haul flights. It results from blood clotting due to inactivity and poor circulation, so do some gentle foot and leg exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to St. Louis?
As savvy travellers know, the secret is to be well organized before you arrive at the security gate. That way, you'll be stepping onto that plane to St. Louis in a flash. Follow these tips and get your trip off to a spectacular start:

  • First things first. Your travel ID and boarding pass will need to be inspected by airport security. Have them easily accessible so you don't hold up the line.
  • The X-ray machine is up next. Remove anything on you that is likely to set off the alarm. This includes things like earphones or headphones, as well as bulky coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • For just a few minutes, you'll have to unplug from the digital world. Your tablet, phone and any other electronic gadgets will also need to go through the scanner.
  • Don't forget to remove gels and liquids from your carry-on bag. They often need to be sent through the X-ray separately. Each item should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a single quart-size (one litre), clear zip-close bag.
  • Slip-on shoes are a great footwear choice as you're less likely to have to remove them when passing through security. Boots and other bulky shoes are usually subjected to additional screening.
  • Airlines will not allow any sharp objects in the cabin. If you need to bring these kinds of items, put them in your checked luggage.

Flights to St. Louis information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $234

Trending flights to St. Louis

Prices were available within the past 7 days and start at CA $129 for one-way flights and CA $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Apr 27 - Tue, Apr 28
YVR
Vancouver
STL
St. Louis
CA $343 Roundtrip, found 1 day ago
CA $343
Roundtrip
found 1 day ago
Select United flight, departing Mon, Apr 27 from Vancouver to St. Louis, returning Tue, Apr 28, priced at CA $343 found 1 day ago

Explore a world of travel with Expedia

*Available to Expedia members.