Cheap Flights to St. Clair , MO from CA $160

View CA $160 flight on Thu, May 14, 2026Opens in a new window

Flight 1

Popular airlines to St. Clair

  • 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. Clair?

Prices were available within the past 7 days and start at CA $160 for one-way flights and CA $271 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 12 - Tue, May 19
DTW
Detroit
STL
St. Louis
CA $271 Roundtrip, found 4 days ago
CA $271
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, May 12 from Detroit to St. Louis, returning Tue, May 19, priced at CA $271 found 4 days ago
American Airlines
Tue, Apr 14 - Mon, Apr 20
DTW
Detroit
STL
St. Louis
CA $309 Roundtrip, found 5 days ago
CA $309
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Apr 14 from Detroit to St. Louis, returning Mon, Apr 20, priced at CA $309 found 5 days ago
United
Tue, May 5 - Sat, May 9
DTW
Detroit
STL
St. Louis
CA $352 Roundtrip, found 6 days ago
CA $352
Roundtrip
found 6 days ago
Select United flight, departing Tue, May 5 from Detroit to St. Louis, returning Sat, May 9, priced at CA $352 found 6 days ago
Air Canada
Thu, Sep 10 - Sun, Sep 20
YVR
Vancouver
STL
St. Louis
CA $364 Roundtrip, found 6 days ago
CA $364
Roundtrip
found 6 days ago
Select Air Canada flight, departing Thu, Sep 10 from Vancouver to St. Louis, returning Sun, Sep 20, priced at CA $364 found 6 days ago
Alaska Airlines
Thu, Apr 9 - Tue, Apr 21
YVR
Vancouver
STL
St. Louis
CA $409 Roundtrip, found 6 days ago
CA $409
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Apr 9 from Vancouver to St. Louis, returning Tue, Apr 21, priced at CA $409 found 6 days 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.

Frequently asked questions

What is the name of St. Clair's airport?
St. Clair is served by a single airport, Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into St. Clair?
Travellers from all around the world pass through Lambert-St. Louis Intl. Airport (STL) each day. Jump off the plane, grab your bags and you'll be 72 kilometres from downtown St. Clair.
How many airlines fly to St. Clair?
St. Clair is serviced by 12 airlines from 61 airports around the world.
Which airlines fly to St. Clair?
United Airlines and American Airlines operate the majority of flights to St. Clair. One of the most common ways to travel there is on a United Airlines flight leaving from Chicago.
How many nonstop flights are there to St. Clair?
Flying to a new place is much simpler when there aren't any annoying stopovers. If you're heading to St. Clair, the good news is that there are approximately 1,206 direct flights operating every week.
Where are the most popular flights to St. Clair departing from?
Flights to St. Clair from Chicago, Dallas and New York airports are the most popular.
How long is the flight to St. Clair Airport?
If it's Chicago you're departing, you'll be airborne for around 1 hour and 22 minutes before you arrive in St. Clair. Runway to runway from Dallas typically takes 1 hour and 43 minutes and from New York, 3 hours and 1 minute.
How to book the cheapest flight to St. Clair?
Don't leave booking your flight to St. Clair until the very last minute. That's one move well-versed travellers use to get the best prices. Booking in advance means more options and cheaper flights. Another good way to grab the most affordable fare is to compare all options. If where you're headed has multiple airports, be sure to look into the cost of flying into a less busy terminal. Lastly, another simple way to save a few dollars is be ready to book at a moment's notice. If you spot a fantastic bargain, don't think twice — grab it while you've got the chance.
Do you have any tips for my flight to St. Clair?
Wherever you're coming from, flying can be a seamless experience if you've prepared well. We've compiled a list of handy travel tips that will help get your St. Clair escape started on the right note. What to pack in your hand luggage:

  • Travelling on a plane can be easy if you take the right stuff. Firstly, you'll want a few toiletry items, such as deodorant, toothpaste and a toothbrush, a clean pair of socks and a good novel. Next, leave space in your bag for your mobile phone, a charger, any daily medications and perhaps a blow-up neck pillow as well. Lastly, remember to bring your passport, travel docs and your bank cards.

Do not pack the following items in your hand luggage:

  • Make sure you don't have sharp or pointed objects hiding in the bottom of your carry-on luggage. Other prohibited items include flammable or explosive goods, such as fuel and matches, and gels and liquids in containers larger than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • The aisles of a plane are no place for a fashion parade. Dress in comfortable layers and choose shoes that are roomy, flat and easy to take on and off.
  • You've probably heard about deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of inactivity. To minimize your risk on board, drink plenty of water, consider wearing compression tights or socks and move your lower limbs often.

How to get through airport security fast when flying to St. Clair?
Being organized before your flight will make your trip to St. Clair a piece of cake. Below are some handy hints for a speedy journey through security:

  • First things first. Your boarding pass and travel ID will need to be shown to security personnel. Have them easily accessible to avoid fumbling around for them.
  • Next up is the X-ray machine. Remove anything metal on you that is likely to beep. This includes things like headphones or earphones, as well as bulky coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • Your electronic gadgets like laptops and phones will also have to go on a tray for inspection. Don't worry, you'll be back online before you know it.
  • Any gels or liquids, such as perfume or hairspray, that you want to bring on board need to be in containers no greater than 3.4 ounces (100 millilitres). Also, they all must fit inside a quart-size (one litre), clear zip-lock bag.
  • Lightweight sneakers are a good footwear choice as you're less likely to be required to remove them when going through security. Hiking boots and heavier-style shoes are usually subjected to extra screening.
  • Take all prohibited items out of your carry-on bag. If you have any sharp or pointed objects, put them in your checked luggage. They won't be allowed on board and will be confiscated.

Book with confidence

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

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. Clair 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. Clair.

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

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $270

Trending flights to St. Clair

Prices were available within the past 7 days and start at CA $160 for one-way flights and CA $271 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Apr 14 - Wed, Apr 15
YVR
Vancouver
STL
St. Louis
CA $362 Roundtrip, found 3 hours ago
CA $362
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Apr 14 from Vancouver to St. Louis, returning Wed, Apr 15, priced at CA $362 found 3 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.