$44 Cheap Flights to St. Louis , MO

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How much is the cheapest flight to St. Louis?

Prices were available within the past 7 days and start at $44 for one-way flights and $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Spirit Airlines
Frontier Airlines
Spirit Airlines
Southern Airways Express

Find Your Flights to St. Louis STL

Cheap flights to St. Louis (STL)

Get started finding a cheap flight to St. Louis on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want 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 St. Louis.

Roundtrip prices range from $83 - $165, and one-ways to St. Louis start as low as $44.

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 St. Louis (STL)

You have several options for which airline you choose to travel with to St. Louis. There are 10 airlines flying into STL: Frontier Airlines, Spirit Airlines, Southern Airways Express. 

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 programs 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 in 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 the optimal times. Airfare to St. Louis (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in September and in September 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

Where can I learn more about changing or canceling my flight to St. Louis?
For more information about updating your flight to St. Louis or canceling it, head over to our Customer Service Portal.
How do I find cheap flights to St. Louis that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight you select. When you’re searching for flights to St. Louis, you’ll see a “no change fees” filter for you to select.
Can I fly to St. Louis now?
Make your plane trip to St. Louis simple and straightforward by making your first stop our Covid-19 Travel Advisor. This is the fastest way to stay informed about current travel restrictions, including quarantine requirements and the latest health advisory information.
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 12 mi 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 12 mi 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.
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?
Travelers often depart from Chicago, Queens Village and Denver airports when going to St. Louis.
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
Destination city name
St. Louis
Roundtrip price

Trending flights to St. Louis

Prices were available within the past 7 days and start at $44 for one-way flights and $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines

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