Cheap Flights to Flat River , MO from CA $135

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Flat River?

Prices were available within the past 7 days and start at CA $135 for one-way flights and CA $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat., Sep. 7 - Tue., Sep. 24
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
CA $207 Roundtrip, found 15 hours ago
CA $207
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Sat., Sep. 7 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Tue., Sep. 24, priced at CA $207 found 15 hours ago
Frontier Airlines
Tue., Jul. 16 - Fri., Jul. 26
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $264 Roundtrip, found 19 hours ago
CA $264
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Tue., Jul. 16 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Fri., Jul. 26, priced at CA $264 found 19 hours ago
Air Canada
Thu., Aug. 15 - Mon., Aug. 19
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $397 Roundtrip, found 19 hours ago
CA $397
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Thu., Aug. 15 from Vancouver Intl. to Lambert-St. Louis Intl., returning Mon., Aug. 19, priced at CA $397 found 19 hours ago
Air Canada
Tue., Jul. 23 - Mon., Jul. 29
YYC
Calgary Intl.
STL
Lambert-St. Louis Intl.
CA $411 Roundtrip, just found
CA $411
Roundtrip
just found
Select Air Canada flight, departing Tue., Jul. 23 from Calgary Intl. to Lambert-St. Louis Intl., returning Mon., Jul. 29, priced at CA $411 just found
Air Canada
Wed., Aug. 21 - Mon., Aug. 26
YHZ
Stanfield Intl.
STL
Lambert-St. Louis Intl.
CA $440 Roundtrip, found 1 day ago
CA $440
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed., Aug. 21 from Stanfield Intl. to Lambert-St. Louis Intl., returning Mon., Aug. 26, priced at CA $440 found 1 day ago

Find Your Flights to Flat River STL

Cheap flights to Flat River (STL)

Get started finding a cheap flight to Flat River on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Flat River.

Roundtrip prices range from CA $207 - CA $440, and one-ways Flat River start as low as CA $135.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

 

Airlines that fly to Flat River (STL)

You have several options for which airline you choose to travel with to Flat River. There are 10 airlines flying into STL: American Airlines, Spirit Airlines, Air Canada, Frontier Airlines. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Flat River (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in September and in October for one-ways.

 

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

What is the name of Flat River's airport?
Flat River is served by just a single airport, Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into Flat River?
Pass through the exit doors of Lambert Field and your Flat River adventure will have begun! The city’s main airport, it’s located 97 kilometres from the center of town.
How many airlines fly to Flat River?
Flat River is serviced by 12 airlines from 64 airports across the globe.
Which airlines fly to Flat River?
United Airlines and American Airlines operate the majority of flights to Flat River. One of the most popular ways to get there is on a United Airlines flight leaving from Chicago.
How many nonstop flights are there to Flat River?
With 1,319 direct flights every week, you’ll be touching down in Flat River before you can say, “Are we there yet?”
Where are the most popular flights to Flat River departing from?
Travelers frequently depart from Denver, Dallas and Chicago airports when going to Flat River.
How long is the flight to Flat River Airport?
Which airport you depart from determines how much of the in-flight entertainment you’ll get to see. From Chicago to Flat River, the average flight time is 1 hour and 15 minutes. From Queens Village it’s around 2 hours and 51 minutes, and from Denver it’s 1 hour and 59 minutes.
How to book the cheapest flight to Flat River?
Don’t leave booking your flight to Flat River until the last possible moment. That’s one move savvy jet-setters use to get the best prices. Booking ahead means more options and cheaper flights. Don’t stop there, though. Do some research and check if there is more than one airport at your destination. Prices often differ depending on which airport you go for. Don’t forget to compare fares across air carriers too. And finally, don’t forget that the early bird catches the worm. Familiarize yourself with airfare costs and have your credit card ready to secure your seat as soon as you spot an unbeatable bargain. The sweetest deals never last long.
How to survive the flight to Flat River?
If you’re not prepared, traveling can be testing. But there’s no need to worry. Follow these handy tips for a stress-free start to your vacation in Flat River.What to pack in your hand luggage:

  • The secret to having a stress-free flight experience is to be prepared. So, let’s start with the basics: passport, official ID, cash and daily medications. Next, take on board items that’ll help pass the time, like your laptop or a good book. It’s also wise to bring your chargers, a neck pillow and a pair of earplugs. Last but not least, don’t forget to toss in toiletry items like a toothbrush, cleansing wipes and a fresh change of clothes.

Do not pack the following items in your hand luggage:

  • Squeeze all your full-sized bottles of hair gel and hairspray in your checked luggage. Any liquids in your carry-on bag larger than 3.4 ounces (100 milliliters) will be confiscated by security. Sharp or pointed objects, like your beloved Swiss Army knife, and products which are flammable or explosive, such as flares, chemicals agents and matches, are also restricted.

What to wear on a flight:

  • The aisles of your aircraft are not the best place for a fashion parade. Wear comfortable clothes and pack a sweater as it can get quite cool in the cabin during long-haul flights. Enclosed, flat shoes are always a good choice too.
  • Unfortunately, one risk of flying long distances is developing DVT (deep vein thrombosis), a blood clotting condition caused by prolonged inactivity. To prevent this, take every opportunity to stretch your legs and walk around the cabin. Compression tights and socks are another easy way to help reduce this risk.

How to get through airport security fast when flying to Flat River?
A little pre-planning before you arrive at the airport can make your trip to Flat River a pleasure. Here are some useful tips for a stress-free journey past security:

  • Keep your travel documents and ID at hand. They’re the first items you’ll be asked to show at security.
  • Next up is the X-ray machine. Remove anything on you that is likely to set off the scanner’s alarm. This includes items like earphones or headphones, as well as heavy coats or jackets. They’ll all need to go on the X-ray conveyor belt.
  • All your electronic gadgets, including your laptop and phone, will also need to be scanned separately.
  • Can’t travel without your favorite hand cream? Not a problem. As long as the volume is no larger than 3.4 ounces (100 milliliters) and it’s stored in a clear zip-close bag, you’re allowed to bring it with you in your carry-on.
  • There’s a good chance you’ll need to take your shoes off for scanning, so wearing slip-on sneakers is always a clever idea.
  • Sharp items are not allowed on board. They’ll be confiscated at security, so pack them in your checked bags.

Flights to Flat River information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $206

Trending flights to Flat River

Prices were available within the past 7 days and start at CA $135 for one-way flights and CA $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu., Aug. 15 - Mon., Aug. 19
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $397 Roundtrip, found 19 hours ago
CA $397
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Thu., Aug. 15 from Vancouver Intl. to Lambert-St. Louis Intl., returning Mon., Aug. 19, priced at CA $397 found 19 hours ago
*Available to Expedia members.