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

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

Popular airlines to St. Charles

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How much is the cheapest flight to St. Charles?

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 3 days ago
CA $239
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $239 found 3 days ago
American Airlines
Fri, Apr 24 - Tue, Apr 28
SEA
Seattle
STL
St. Louis
CA $252 Roundtrip, found 3 days ago
CA $252
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $252 found 3 days ago
Alaska Airlines
Fri, Apr 24 - Tue, Apr 28
SEA
Seattle
STL
St. Louis
CA $259 Roundtrip, found 3 days ago
CA $259
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from Seattle to St. Louis, returning Tue, Apr 28, priced at CA $259 found 3 days ago
Hawaiian Airlines
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
STL
St. Louis
CA $295 Roundtrip, found 1 day ago
CA $295
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Apr 7 from Seattle to St. Louis, returning Tue, Apr 21, priced at CA $295 found 1 day ago
United
Mon, Apr 20 - Tue, Apr 21
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 20 from Vancouver to St. Louis, returning Tue, Apr 21, 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.

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Expedia.ca gives you the best tools to secure great deals on flights to St. Charles. 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. Charles. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to St. Charles.

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. Charles 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. Charles.

Looking to save even more? Get additional savings by bundling your St. Charles 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. Charles trip!

Frequently asked questions

What is the name of St. Charles' airport?
Book a flight to St. Charles and you'll be arriving at Lambert-St. Louis Intl. Airport (STL).
How far is STL from central St. Charles?
Lambert Field is 13 kilometres from central St. Charles, so expect a bit of a commute into the heart of the city.
What airport is best to fly into St. Charles?
Pass through the exit doors of Lambert-St. Louis Intl. Airport (STL) and your St. Charles getaway will have begun! The city's main airport, it's located 13 kilometres from the centre of town.
How many airlines fly to St. Charles?
There are 12 air carriers that service St. Charles from 61 airports across the globe.
Which airlines fly to St. Charles?
United Airlines and American Airlines offer the most flights to St. Charles. One of the most popular ways to get there is on a United Airlines flight from Chicago.
How many nonstop flights are there to St. Charles?
Flying to someplace new is much more straightforward when there aren't any annoying stopovers. If you're heading to St. Charles, the awesome news is that there are roughly 1,206 nonstop flights each week.
Where are the most popular flights to St. Charles departing from?
Flights to St. Charles departing from Chicago, Dallas and New York airports are the most sought after.
How long is the flight to St. Charles Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Chicago to St. Charles, the average flight time is 1 hour and 22 minutes. From Dallas it's more like 1 hour and 43 minutes, and from New York it's 3 hours and 1 minute.
How to book the cheapest flight to St. Charles?
Don't leave locking in your flight to St. Charles until the very last minute. That's one trick seasoned jet-setters use to get the best deals. Booking ahead means more options and more affordable flights. Don't stop there, though. Do some research and check if there are a few airports at your destination. Fares often differ depending on the airport you jet into. Be sure to compare fares across airlines too. Lastly, another simple way to save some money is be ready to book at a moment's notice. If you stumble on an irresistible deal, don't think twice — snap it up while you can.
Do you have any tips for my flight to St. Charles?
Depending on where you're coming from, your flight to St. Charles could be no sweat at all or it could go on forever. Here are some useful tips that will help you start your unforgettable escape on a positive note. What to pack in your hand luggage:

  • A plane ride can be a stress-free experience if you bring the right things. Firstly, you'll want some basic toiletries, such as a toothbrush and lip balm, a fresh set of clothes and a few magazines. Next, make room in your carry-on bag for your phone and charger, any medications and maybe a proper neck pillow as well. Last, but definitely not least, be sure to bring your passport, travel papers and your credit cards.

Do not pack the following items in your hand luggage:

  • Check carefully that you don't have sharp objects (like a pocket knife) hiding in your hand luggage. Other restricted items include flammable or explosive goods, such as aerosol cans and fuel, and liquids and gels in containers larger than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Go for comfort over style. Prepare for changes in cabin temperature by wearing layers, and pick flat, enclosed footwear like slip-ons.
  • You're probably aware of deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of inactivity. To lessen your risk on board, drink lots of water, consider wearing compression socks and keep your feet and legs moving.

How to get through airport security fast when flying to St. Charles?
It's easy — be prepared. We've pulled together some tips and tricks for a speedy trip through airport security. Watch out St. Charles, here you come:

  • Your boarding pass and travel ID will need to be inspected by airport security personnel. Have them easily accessible to avoid fumbling around for them.
  • The X-ray machine comes next. Remove anything metal on you that is likely to beep. This includes things like earphones or headphones, as well as heavy coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • All your electronics, including your tablet and phone, must also be scanned.
  • Any liquids or gels, such as lip balm or cologne, that you want to take on board need to be in containers no greater than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-lock bag.
  • There's a possibility that you'll be required to take your shoes off to be X-rayed, so wearing slip-on shoes is always a clever idea.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them safely away in your checked suitcase. They won't be allowed on board and will be confiscated.

Flights to St. Charles 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. Charles

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 20 - Tue, Apr 21
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 20 from Vancouver to St. Louis, returning Tue, Apr 21, priced at CA $343 found 1 day ago

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