Cheap Flights to Lake St Louis , MO from CA $41

View CA $41 flight on Mon, Aug. 4, 2025Opens in a new window

Popular airlines to Lake St Louis

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How much is the cheapest flight to Lake St Louis?

Prices were available within the past 7 days and start at CA $41 for one-way flights and CA $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, Aug. 8 - Sun, Aug. 10
DTW
Detroit
STL
St. Louis
CA $83 Roundtrip, just found
CA $83
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Aug. 8 from Detroit to St. Louis, returning Sun, Aug. 10, priced at CA $83 just found
Delta
Thu, Sep. 11 - Sun, Sep. 14
DTW
Detroit
STL
St. Louis
CA $123 Roundtrip, found 2 days ago
CA $123
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep. 11 from Detroit to St. Louis, returning Sun, Sep. 14, priced at CA $123 found 2 days ago
American Airlines
Fri, Sep. 26 - Mon, Sep. 29
DTW
Detroit
STL
St. Louis
CA $256 Roundtrip, just found
CA $256
Roundtrip
just found
Select American Airlines flight, departing Fri, Sep. 26 from Detroit to St. Louis, returning Mon, Sep. 29, priced at CA $256 just found
United
Wed, Nov. 5 - Mon, Nov. 24
DTW
Detroit
STL
St. Louis
CA $294 Roundtrip, found 6 days ago
CA $294
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov. 5 from Detroit to St. Louis, returning Mon, Nov. 24, priced at CA $294 found 6 days ago
Air Canada
Tue, Sep. 23 - Tue, Oct. 7
YVR
Vancouver
STL
St. Louis
CA $438 Roundtrip, found 5 days ago
CA $438
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Sep. 23 from Vancouver to St. Louis, returning Tue, Oct. 7, priced at CA $438 found 5 days ago

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

August is typically the cheapest month to fly

From CA $197 - CA $945 per traveller.

Graph displaying average flight prices per month

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

Looking to save even more? Get additional savings by bundling your Lake 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 Lake St Louis trip!

Frequently asked questions

What is the name of Lake St Louis' airport?
Lake St Louis is served by a single airport, Lambert-St. Louis Intl. Airport (STL).
How far is Lambert-St. Louis Intl. Airport (STL) from central Lake St Louis?
The trip between Lambert-St. Louis Intl. Airport (STL) and downtown Lake St Louis is reasonably long. You'll have to travel 40 kilometres before you can drop your bags at your city hotel.
What airport is best to fly into Lake St Louis?
Located 40 kilometres from the downtown area, Lambert-St. Louis Intl. Airport (STL) will likely be your first stop in Lake St Louis.
How many airlines fly to Lake St Louis?
There are 12 airlines that fly into Lake St Louis from 61 airports across the globe.
Which airlines fly to Lake St Louis?
United Airlines and American Airlines fly often into Lake St Louis. Catching a United Airlines flight from Chicago is one of the most preferred options to get there.
How many nonstop flights are there to Lake St Louis?
Flying to somewhere new is much more straightforward when there aren't any stopovers to slow you down. If you're making your way to Lake St Louis, the awesome news is that there are approximately 1,206 direct flights operating every week.
Where are the most popular flights to Lake St Louis departing from?
A large number of flights to Lake St Louis take off from Chicago, Dallas and New York airports.
How long is the flight to Lake St Louis Airport?
If you're heading to Lake St Louis from Chicago, you'll have a flight duration of 1 hour and 22 minutes. Those jetting off from Dallas can expect to be travelling for 1 hour and 43 minutes. From New York it's about 3 hours and 1 minute away.
How to book the cheapest flight to Lake St Louis?
Don't leave locking in your flight to Lake St Louis until the last minute. That's one move well-versed jet-setters use to get the best deals. Booking well in advance means more options and less expensive flights. Another great way to score the best price is to shop around. If your destination has a few airports, don't forget to look into the cost of flying into a smaller terminal. And finally, remember that it's first in, best dressed. Familiarize yourself with airfare costs and have your credit card ready to book your ticket as soon as you spot an unbeatable bargain. The sweetest deals never last long.
Do you have any tips for my flight to Lake St Louis?
We've got the lowdown on how to make your flight as pain-free as possible. Follow our insider tips and you'll be speeding through airport security and exploring Lake St Louis in no time at all. What to pack in your hand luggage:

  • A plane ride can be a stress-free experience if you carry the right things. Firstly, you'll need basic toiletries, such as a toothbrush and lip balm, a fresh set of clothes and a good book. Secondly, make room in your hand luggage for your mobile phone, a charger, any medications and perhaps a neck pillow too. Lastly, and most importantly, be sure to take your passport, travel papers and your bank cards.

Do not pack the following items in your hand luggage:

  • Put all your full-sized bottles of shampoo and hair gel in your checked baggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by security. Sharp objects, like your trusty Swiss Army knife, and dangerous goods which are explosive or flammable, such as spray paint, flares and gasoline, are also restricted.

What to wear on a flight:

  • You'll want to choose comfort over style. Prepare for temperature changes by dressing in layers, and opt for easy-to-remove footwear like slip-ons.
  • Deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of inactivity, can be a risk on long-haul flights. Try to walk around the cabin and stretch your legs or do some gentle exercises in your seat to improve your circulation.

How to get through airport security fast when flying to Lake St Louis?
Being prepared before you arrive at the airport can make your getaway to Lake St Louis a pleasure. Here are some handy hints for a swift journey through security:

  • Be sure to keep your ID and boarding pass within close reach. They'll be the first things you'll be asked to present to airport security.
  • Next up, both you and your carry-on bag must be X-rayed. To speed things up, remove anything that might trigger the alarms. Personal belongings such as your belt, jacket and earphones need to go through the machine.
  • Electronic devices like laptops and phones will also need to go on a tray for inspection. Don't worry, you'll be back online before you know it.
  • Any liquids or gels, such as lip balm or cologne, that you want to bring on board must be no larger than 3.4 ounces (100 millilitres). Also, they all must fit inside a quart-size (one litre), clear zip-close bag.
  • Lightweight sneakers are a practical footwear choice as you're less likely to be asked to remove them when passing through security. Big boots and heavier-style shoes are often subjected to additional screening.
  • Airlines will not allow any sharp objects to come on board with you. If you need to bring these kinds of items, pack them in your checked luggage.

Flights to Lake St Louis information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $82

Trending flights to Lake St Louis

Prices were available within the past 7 days and start at CA $41 for one-way flights and CA $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Sep. 11 - Sun, Sep. 21
YYC
Calgary
STL
St. Louis
CA $424 Roundtrip, found 5 days ago
CA $424
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Sep. 11 from Calgary to St. Louis, returning Sun, Sep. 21, priced at CA $424 found 5 days ago
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