S$226 Cheap Flights to Flat River

View S$226 flight on Wed, 29 Apr, 2026Opens in a new window

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Cheap round-trip flights to Flat River

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 27 Nov - Wed, 3 Dec
SFO
San Francisco
STL
St. Louis
S$459 Return, found 5 days ago
S$459
Return
found 5 days ago
Select United flight, departing Thu, 27 Nov from San Francisco to St. Louis, returning Wed, 3 Dec, priced at S$459 found 5 days ago
American Airlines
Thu, 27 Nov - Wed, 3 Dec
SFO
San Francisco
STL
St. Louis
S$479 Return, found 5 days ago
S$479
Return
found 5 days ago
Select American Airlines flight, departing Thu, 27 Nov from San Francisco to St. Louis, returning Wed, 3 Dec, priced at S$479 found 5 days ago
Delta
Thu, 27 Nov - Wed, 3 Dec
SFO
San Francisco
STL
St. Louis
S$499 Return, found 5 days ago
S$499
Return
found 5 days ago
Select Delta flight, departing Thu, 27 Nov from San Francisco to St. Louis, returning Wed, 3 Dec, priced at S$499 found 5 days ago
Alaska Airlines
Fri, 28 Nov - Thu, 4 Dec
SFO
San Francisco
STL
St. Louis
S$569 Return, found 1 day ago
S$569
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 28 Nov from San Francisco to St. Louis, returning Thu, 4 Dec, priced at S$569 found 1 day ago
Air Canada
Tue, 25 Nov - Wed, 3 Dec
SIN
Singapore
STL
St. Louis
S$1,283 Return, found 1 hour ago
S$1,283
Return
found 1 hour ago
Select Air Canada flight, departing Tue, 25 Nov from Singapore to St. Louis, returning Wed, 3 Dec, priced at S$1,283 found 1 hour ago

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

October is typically the cheapest month to fly

From S$179 - S$586 per traveller.

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 return 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.

Return prices range from S$459 - S$1,283 and one-ways Flat River start as low as S$226.

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: Delta, United, American Airlines, Alaska Airlines, EVA Airways, Cathay Pacific, Air Canada. 

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 in a bag or bring hand baggage, it's worth checking 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 in/hand 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 return trips to STL in November and in April 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?
Organise a flight to Flat River and you'll be touching down at Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into Flat River?
Lambert Field is the only major airport in Flat River. Before you fly, it's a smart idea to know a little about it. The terminal sits 97 kilometres from the downtown area.
How many airlines fly to Flat River?
There are 12 air carriers that fly into Flat River from 61 worldwide airports.
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 with a United Airlines flight leaving from Chicago.
How many nonstop flights are there to Flat River?
Arranging an amazing Flat River escape is easy when there are 1,206 direct flights every week to get you there.
Where are the most popular flights to Flat River departing from?
Travellers often depart from Chicago, Dallas and New York airports when flying to Flat River.
How long is the flight to Flat River Airport?
If it's Chicago you're departing, you'll be midair for around 1 hour and 22 minutes before you touchdown in Flat River. Terminal to terminal from Dallas takes approximately 1 hour and 43 minutes and from New York, the average flight time is 3 hours and 1 minute.
How to book the cheapest flight to Flat River?
We've all come across those fortunate jet-setters who somehow manage to grab wonderfully cheap plane tickets every time they fly. Eager to know how to do it for your Flat River holiday? Don't wait until the last possible moment to lock in your flight. Don't stop there, though. Do some research and find out if there are a couple of airports at your destination. Ticket prices often differ depending on which airport you pick. Remember to compare fares across airlines too. Lastly, another easy way to save some cash is be ready to book at a moment's notice. If you stumble on a terrific bargain, don't think twice — grab it while you've got the chance.
Do you have any tips for my flight to Flat River?
Depending on where you're coming from, your trip to Flat River could be as easy as pie or it could go on forever. We've put together some useful tips that will help you start your next big adventure on the right foot. What to pack in your hand luggage:

  • A plane ride can be a pleasure if you pack the right stuff. First things first, you'll need basic toiletry items, such as a toothbrush and some deodorant, a fresh change of clothes and a few magazines. Secondly, find a spot in your bag for your electronic gadgets, chargers, your medications and perhaps a neck pillow as well. Lastly, don't forget to take your passport, travel papers and some money.

Do not pack the following items in your hand luggage:

  • Make sure you don't have a Swiss Army knife hiding in one of the zippers of your carry-on luggage. Other prohibited items include flammable or explosive goods, like aerosols and matches, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Comfort should be your main concern when choosing what to wear on board. Loose clothing is a wise option, as are flat, slightly roomy shoes.
  • You're probably aware of deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of sitting. To minimize your risk on board, drink lots of water, consider wearing compression tights or socks and keep your feet and legs moving.

How to get through airport security fast when flying to Flat River?
A little pre-planning before you arrive at the airport will help make your getaway to Flat River a piece of cake. Below are some handy tips and tricks for a stress-free journey past security:

  • Your boarding pass and passport will need to be presented to airport security. Have them close by so you don't hold up the line.
  • Next up, both you and your carry-on luggage will be X-rayed. To make the process quick and painless, take off anything that is likely to set the alarm off. Items such as your coat, belt and headphones need to go through the machine.
  • For just a few minutes, you'll have to unplug from technology. Your phone, laptop and any other electronic gadgets will also need to go through the scanner.
  • Travelling with a new hand cream? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a clear zip-lock bag, you're permitted to bring it with you on board.
  • Choosing your footwear wisely can save you valuable minutes. Hiking or heavy-style boots are often required to be removed and separately scanned. Slip-on shoes usually aren't.
  • Knives and other sharp items can't be taken on board. They'll be confiscated at security, so put them in your checked baggage.

Flights to Flat River information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
S$458

Trending flights to Flat River

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 25 Nov - Wed, 3 Dec
SIN
Singapore
STL
St. Louis
S$1,283 Return, found 1 hour ago
S$1,283
Return
found 1 hour ago
Select Air Canada flight, departing Tue, 25 Nov from Singapore to St. Louis, returning Wed, 3 Dec, priced at S$1,283 found 1 hour ago
*Available to Expedia members.