$20 Cheap Flights to St. Louis

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How much is the cheapest flight to St. Louis?

Prices were available within the past 7 days and start at $20 for one-way flights and $39 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, May 15 - Wed, May 22
CMH
John Glenn Columbus Intl.
LGA
LaGuardia
$39 Roundtrip, found 1 hour ago
$39
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Wed, May 15 from John Glenn Columbus Intl. to LaGuardia, returning Wed, May 22, priced at $39 found 1 hour ago
Spirit Airlines
Tue, May 7 - Sat, May 11
CMH
John Glenn Columbus Intl.
MCO
Orlando Intl.
$49 Roundtrip, found 3 hours ago
$49
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Orlando Intl., returning Sat, May 11, priced at $49 found 3 hours ago
Spirit Airlines
Wed, May 15 - Wed, May 15
CMH
John Glenn Columbus Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$50 Roundtrip, found 3 hours ago
$50
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Wed, May 15 from John Glenn Columbus Intl. to Fort Lauderdale - Hollywood Intl., returning Wed, May 15, priced at $50 found 3 hours ago
Spirit Airlines
Wed, May 15 - Wed, May 22
CMH
John Glenn Columbus Intl.
BOS
Logan Intl.
$78 Roundtrip, just found
$78
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, May 15 from John Glenn Columbus Intl. to Logan Intl., returning Wed, May 22, priced at $78 just found
Spirit Airlines
Sat, May 11 - Tue, May 21
CMH
John Glenn Columbus Intl.
EWR
Liberty Intl.
$86 Roundtrip, just found
$86
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, May 11 from John Glenn Columbus Intl. to Liberty Intl., returning Tue, May 21, priced at $86 just found

Find Your Flights to St. Louis XLS

Cheap flights to St. Louis (XLS)

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 $39 - $86, and one-ways to St. Louis start as low as $20.

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 (XLS)

You have several options for which airline you choose to travel with to St. Louis. There are 10 airlines flying into XLS: Spirit 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 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 (XLS) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to XLS in May and in May 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

How do I find cheap flights to St. Louis that have flexible change policies?
We get that travel plans can change in a flash, so reserving a flexible airfare with Expedia is a sensible idea. Simply click on “No change fee” under the “Flexible change policies” filter. Your low-cost, flexible flight to St. Louis is just a few clicks away.
How can I book the cheapest flight to St. Louis?
Pick up a cheap flight by having some flexibility with your travel dates, arrival/departure airports and times, and any stopovers on your route. Cheap fares also depend on the airline. When you search for your flight to St. Louis with Expedia, be on the lookout for low-cost carriers. Another helpful tip is to book well ahead of time. While you can grab some incredible deals, ticket prices typically rise as the departure date nears. Right now, one of the cheapest one-way fares to St. Louis $446. This is for a flight leaving New York in May. Enter your travel details into the search fields and check out our St. Louis flight deals. And remember that if you bundle your airfare and hotel bookings, you’ll save more!
Which day of the week is the best day to buy a plane ticket to St. Louis?
Sunday is the best day of the week to purchase plane tickets. But there’s more than one way to score a great deal. Looking for tickets and being ready to buy several weeks before your departure date will also pay off. Research indicates that the optimal booking window ranges from 21 days to about 45 days prior to departure. Know your travel dates to St. Louis months ahead of time? Monitor when airlines first release their tickets as often these are the lowest prices available. Savings are subject to change and may vary depending on selections made.
Which airlines fly to St. Louis?
Take your pick of 30 airlines that connect St. Louis with 37 airports worldwide, including Air Senegal. Cap Skirring is the most popular departure point for Air Senegal flights to St. Louis. ASKY also flies to this destination.
How many nonstop flights are there to St. Louis?
Organizing an unforgettable St. Louis getaway is easy when there are 261 direct flights every week to get you there.
Where are the most popular flights to St. Louis departing from?
Travelers often set off from Bamako, Abidjan and Conakry airports when flying to St. Louis.
Do you have any tips for my flight to St. Louis?

  • What you pack in your carry-on can mean the difference between a comfortable flight, and one that wears you out. Start with the must-haves, such as a valid ID (like your passport) and your travel documents. Once they’re safely packed, toss in any medications you might need. Next? It’s all about the comfort factor. Earphones, a quality neck pillow and a book will help the time fly by while you’re soaring through the sky.
  • Don’t forget there’s also a list of prohibited items for your hand luggage which can differ between airlines and routes. Generally, avoid packing anything sharp, explosive or flammable. This includes things like pocket knives, razor blades, flares and aerosol cans. Sports equipment like baseball bats, tennis rackets and objects that could harm passengers, such as batons and swords, are also banned from the cabin.

What to wear on a flight:

  • Whether traveling short or long-haul, layering up is key to a comfy flight. Wear loose fitting, breathable fabrics that will keep you fresh and pack a pullover for any in-flight temperature variations. Your feet will be happiest in a pair of flat shoes or sneakers.
  • Lessen your risk of developing deep vein thrombosis (DVT), a blood clotting condition which can be caused by sitting for long periods of time, by regularly moving around the cabin. Alternatively, do some gentle foot and leg exercises in your seat. If you’re at higher risk of developing DVT, consider wearing compression socks.

How can I get a cheap last-minute flight to St. Louis?
If you want to land a cheap, spur-of-the-moment flight to St. Louis, flexibility is key. If you can, have some wiggle room with your travel dates. It also helps to keep your options open with your departure and arrival points, choice of carrier, flight times and layovers or stops.
Where can I learn more about changing or canceling my flight to St. Louis?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to St. Louis information
Destination airport
LaGuardia
Destination airport IATA code
LGA
Destination city name
New York
Roundtrip price
$38
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