Cheap Flights to Flat River: Flat River Flight Deals

View €39 flight on Thu, 11 Sep 2025Opens in a new window

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Cheap round-trip flights to Flat River

Prices were available within the past 7 days and start at €39 for one-way flights and €78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 11 Sep - Mon, 15 Sep
ORD
Chicago
STL
St. Louis
€78 Return, found 4 hours ago
€78
Return
found 4 hours ago
Select American Airlines flight, departing Thu, 11 Sep from Chicago to St. Louis, returning Mon, 15 Sep, priced at €78 found 4 hours ago
United
Thu, 11 Sep - Mon, 15 Sep
ORD
Chicago
STL
St. Louis
€99 Return, found 4 hours ago
€99
Return
found 4 hours ago
Select United flight, departing Thu, 11 Sep from Chicago to St. Louis, returning Mon, 15 Sep, priced at €99 found 4 hours ago
Delta
Thu, 11 Sep - Mon, 15 Sep
ORD
Chicago
STL
St. Louis
€116 Return, found 4 hours ago
€116
Return
found 4 hours ago
Select Delta flight, departing Thu, 11 Sep from Chicago to St. Louis, returning Mon, 15 Sep, priced at €116 found 4 hours ago
Southern Airways Express
Thu, 11 Sep - Mon, 15 Sep
ORD
Chicago
STL
St. Louis
€173 Return, found 4 hours ago
€173
Return
found 4 hours ago
Select Southern Airways Express flight, departing Thu, 11 Sep from Chicago to St. Louis, returning Mon, 15 Sep, priced at €173 found 4 hours ago
Scandinavian Airlines
Fri, 14 Nov - Thu, 27 Nov
DUB
Dublin
STL
St. Louis
€524 Return, found 2 days ago
€524
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Fri, 14 Nov from Dublin to St. Louis, returning Thu, 27 Nov, priced at €524 found 2 days ago

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

August is typically the cheapest month to fly

From €123 - €516 per traveller.

Graph displaying average flight prices per month

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Flat River. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Flat River. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Flat River, or are just on the lookout for the best flights to Flat River, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Flat River to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

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 centre 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?
Travellers 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, travelling can be testing. But there's no need to worry. Follow these handy tips for a stress-free start to your holiday 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 favourite 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
Return price
€78

Trending flights to Flat River

Prices were available within the past 7 days and start at €39 for one-way flights and €78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, 14 Nov - Thu, 27 Nov
DUB
Dublin
STL
St. Louis
€524 Return, found 2 days ago
€524
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Fri, 14 Nov from Dublin to St. Louis, returning Thu, 27 Nov, priced at €524 found 2 days ago
*Available to Expedia members.