Cheap Flights to St. Louis

View ₩676,500 flight on Wed, Sep 10, 2025Opens in a new window

Popular airlines to St. Louis

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to St. Louis?

Prices were available within the past 7 days and start at ₩676,500 for one-way flights and ₩830,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Sep 17 - Wed, Sep 24
ICN
Seoul
STL
St. Louis
₩830,400 Roundtrip, found 1 day ago
₩830,400
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Sep 17 from Seoul to St. Louis, returning Wed, Sep 24, priced at ₩830,400 found 1 day ago
American Airlines
Thu, Oct 16 - Sat, Oct 18
ICN
Seoul
STL
St. Louis
₩849,500 Roundtrip, found 1 day ago
₩849,500
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 16 from Seoul to St. Louis, returning Sat, Oct 18, priced at ₩849,500 found 1 day ago
Delta
Tue, Dec 23 - Thu, Jan 8
ICN
Seoul
STL
St. Louis
₩883,200 Roundtrip, found 4 hours ago
₩883,200
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Dec 23 from Seoul to St. Louis, returning Thu, Jan 8, priced at ₩883,200 found 4 hours ago
United
Wed, Sep 17 - Sun, Sep 21
ICN
Seoul
STL
St. Louis
₩919,300 Roundtrip, found 4 days ago
₩919,300
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 17 from Seoul to St. Louis, returning Sun, Sep 21, priced at ₩919,300 found 4 days ago
Korean Air
Tue, Dec 23 - Mon, Feb 16
ICN
Seoul
STL
St. Louis
₩983,200 Roundtrip, found 7 hours ago
₩983,200
Roundtrip
found 7 hours ago
Select Korean Air flight, departing Tue, Dec 23 from Seoul to St. Louis, returning Mon, Feb 16, priced at ₩983,200 found 7 hours ago

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

August is typically the cheapest month to fly

From ₩200,905 - ₩698,296 per traveler.

Searching for cheap flights to St. Louis? No travel company presents more choices than Expedia if you're looking to compare flights to St. Louis. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Missouri. Expedia provides the cheapest flights to many destinations in Missouri and you may find even greater savings if you combine your flight with a hotel stay in St. Louis.

Frequently asked questions

What is the name of St. Louis' airport?
Lambert-St. Louis Intl. Airport (STL) is the one and only airport serving St. Louis.
How far is St. Louis Lambert International Airport from central St. Louis?
If you plan on staying in central St. Louis, it's wise to organize how you'll get into the city before you touchdown. The downtown area is 19 kilometers from STL.
What airport is best to fly into St. Louis?
Step through the exit doors of STL and your St. Louis adventure will have begun! The city's main airport, it's located 19 kilometers from the center of town.
How many airlines fly to St. Louis?
There are a total of 12 airlines connecting St. Louis with 64 airports across the world.
Which airlines fly to St. Louis?
United Airlines and American Airlines frequently fly to St. Louis. Hopping on a United Airlines flight from Chicago is one of the most preferred options to get there.
How many nonstop flights are there to St. Louis?
Flying to somewhere new is much simpler when there aren't any lengthy stopovers. If you're jetting off to St. Louis, the awesome news is that there are around 1,319 direct flights operating every week.
Where are the most popular flights to St. Louis departing from?
A large number of flights to St. Louis set off from Denver, Dallas and Chicago airports.
How long is the flight to St. Louis Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Chicago to St. Louis, the average flight time is 1 hour and 15 minutes. From Queens Village it usually takes 2 hours and 51 minutes, and from Denver it's 1 hour and 59 minutes.
How to book the cheapest flight to St. Louis?
Don't leave booking your flight to St. Louis until the last minute. That's one move frequent travelers use to get the best deals. Booking well in advance means more choices and more affordable flights. Also, do some online research and compare your options. If your destination has more than one airport, you may be able to score a terrific price by flying into one that's farther away. Last but not least, another easy way to save a few dollars is be ready to book fast. If you spot a fantastic deal, don't hold off — snap it up while you've got the chance.
How to survive the flight to St. Louis?
Wherever you're coming from, flying can be a pleasant experience if you're prepared. We've put together a list of essential travel tips that will get your St. Louis escape started on the right foot.What to pack in your hand luggage:

  • A plane ride can be a pleasure if you've got all the right gear. Firstly, you'll want a few basic toiletries, such as a toothbrush and hairbrush, a fresh set of clothes and something to read. Next, find a spot in your bag for your electronic gadgets, chargers, your important medications and perhaps a neck pillow as well. Lastly, remember to take your passport, travel documents and some money.

Do not pack the following items in your hand luggage:

  • Pack all your full-sized bottles of shampoo and hair gel in your checked luggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 milliliters) will be confiscated by authorities. Sharp or pointed objects, like a pocket knife, and dangerous goods which are explosive or flammable, such as flares, bleaching agents and strong acids, are also prohibited.

What to wear on a flight:

  • The main aim is to make yourself as comfortable as you can. Layer yourself up in natural-fiber clothing and remember to pack a cardigan in case it gets cold in the cabin. Go for a pair of roomy, flat shoes as your feet may swell during the flight. Leave the high heels and hiking boots in your luggage.
  • A serious condition called deep vein thrombosis (DVT) can pose a risk on long-distance flights. It's the result of blood clots forming due to poor circulation. Walking around the cabin and doing regular leg and foot exercises while seated helps to prevent this from happening. Wearing a pair of compression socks also helps reduce the risk.

How to get through airport security fast when flying to St. Louis?
Being prepared before you get to the airport can make your trip to St. Louis easy and painless. Below you'll find some handy tips for a stress-free journey through security:

  • First things first. Your boarding pass and travel ID will need to be shown to airport security personnel. Keep them someplace accessible so you don't have to dig around for them.
  • The X-ray machine is up next. Remove anything on you that is likely to set off the alarm. This includes items like earphones or headphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • All your electronic devices, including your phone and tablet, will also need to be separately scanned.
  • Traveling with your favorite perfume? 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-lock bag, it's OK to bring with you in your carry-on.
  • Slip-on shoes are a great footwear choice as you're less likely to have to remove them when passing through security. Big boots and heavier-style shoes are usually subjected to extra screening.
  • Airlines won't allow any sharp items or pocket knives in your carry-on luggage. If you must bring these kinds of items, pack them safely in your checked baggage.

Flights to St. Louis information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
₩287,400

Trending flights to St. Louis

Prices were available within the past 7 days and start at ₩676,500 for one-way flights and ₩830,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Sep 17 - Wed, Sep 24
ICN
Seoul
STL
St. Louis
₩830,400 Roundtrip, found 1 day ago
₩830,400
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Sep 17 from Seoul to St. Louis, returning Wed, Sep 24, priced at ₩830,400 found 1 day ago
*Available to Expedia members.