US$885 Cheap Flights to Alton, IL

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Featured airlines

Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

How much is the cheapest flight to Alton?

Prices were available within the past 7 days and start at US$885 for one-way flights and US$1,755 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Friday, 21 Jun - Saturday, 22 Jun
PEK
Capital Intl.
STL
Lambert-St. Louis Intl.
US$1,755 Roundtrip, found 21 hours ago
US$1,755
Roundtrip
found 21 hours ago
Select Japan Airlines flight, departing Friday, 21 Jun from Capital Intl. to Lambert-St. Louis Intl., returning Saturday, 22 Jun, priced at US$1,755 found 21 hours ago
Qatar Airways
Friday, 21 Jun - Saturday, 22 Jun
PKX
Daxing Intl.
STL
Lambert-St. Louis Intl.
US$1,787 Roundtrip, found 21 hours ago
US$1,787
Roundtrip
found 21 hours ago
Select Qatar Airways flight, departing Friday, 21 Jun from Daxing Intl. to Lambert-St. Louis Intl., returning Saturday, 22 Jun, priced at US$1,787 found 21 hours ago
Qatar Airways
Friday, 21 Jun - Saturday, 22 Jun
PKX
Daxing Intl.
STL
Lambert-St. Louis Intl.
US$2,170 Roundtrip, found 21 hours ago
US$2,170
Roundtrip
found 21 hours ago
Select Qatar Airways flight, departing Friday, 21 Jun from Daxing Intl. to Lambert-St. Louis Intl., returning Saturday, 22 Jun, priced at US$2,170 found 21 hours ago
Qatar Airways
Friday, 21 Jun - Saturday, 22 Jun
PKX
Daxing Intl.
STL
Lambert-St. Louis Intl.
US$2,186 Roundtrip, found 21 hours ago
US$2,186
Roundtrip
found 21 hours ago
Select Qatar Airways flight, departing Friday, 21 Jun from Daxing Intl. to Lambert-St. Louis Intl., returning Saturday, 22 Jun, priced at US$2,186 found 21 hours ago
Turkish Airlines
Friday, 21 Jun - Saturday, 22 Jun
PEK
Capital Intl.
STL
Lambert-St. Louis Intl.
US$2,512 Roundtrip, found 21 hours ago
US$2,512
Roundtrip
found 21 hours ago
Select Turkish Airlines flight, departing Friday, 21 Jun from Capital Intl. to Lambert-St. Louis Intl., returning Saturday, 22 Jun, priced at US$2,512 found 21 hours ago

Find Your Flights to Alton STL

Cheap flights to Alton (STL)

Get started finding a cheap flight to Alton 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 Alton.

Roundtrip prices range from US$1,755 - US$2,512, and one-ways to Alton start as low as US$885.

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 Alton (STL)

You have several options for which airline you choose to travel with to Alton. There are 10 airlines flying into STL: All Nippon Airways, Qatar Airways, Japan Airlines, Lufthansa, Turkish 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 Alton (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in June and in June 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 Alton that have flexible change policies?
Search for cheap fares to Alton, then click on “No change fee” below the “Flexible change policies” subheading. It’s as easy as that. We know that travel plans can change and flexibility is essential, so you can book with confidence with Expedia.
What is the name of the airport in Alton?
Book a flight to Alton and you’ll hit the tarmac at Lambert-St. Louis Intl. Airport (STL).
How far is Lambert-St. Louis Intl. Airport (STL) from central Alton?
Lambert-St. Louis Intl. Airport (STL) is 25 mi from downtown Alton, so expect a reasonable commute into the center of the city.
Which day of the week is the best day to buy a plane ticket to Alton?
Research suggests that Sunday is the best day of the week when it comes to booking cheaper fares. Your odds of scoring an amazing deal to Alton also depend on how far ahead you book your flight. The cheapest tickets can typically be found from 21 days to around 45 days out from your depature date. You’re also likely to find great bargains when tickets are released. Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Alton?
With just one main airport servicing Alton, it won’t take very long to get your hands on the best flight. You’ll be taking off to Lambert Field, which is located around 25 mi from the center of town.
Which airlines fly to Alton?
Take your pick of 9 airlines that connect Alton with 60 airports across the globe, including American Airlines. Chicago is the most popular departure point for American Airlines flights to Alton. United Airlines can also fly you to this destination.
How many nonstop flights are there to Alton?
Arranging an amazing Alton adventure is a cinch when there are 1,273 direct flights every week to get you there.
Where are the most popular flights to Alton departing from?
Travelers often depart from Chicago, Denver and Dallas airports when heading to Alton.
Do you have any tips for my flight to Alton?

  • What you pack in your carry-on baggage can be the difference between a comfortable flight, and one that wears you out. Start with the important stuff, like your passport (or a valid ID) and your travel documents. Once they’re safely packed, throw in any medications you might need. Next, think about comfort. Earphones, a quality neck pillow and a good book will help the time fly by while you’re in your seat.
  • There’s a list of items you should not pack in your carry-on bag too. Sharps, explosives and flammables are strictly prohibited in the cabin — they often include aerosol cans, flares, box cutters and razor blades. Some sporting equipment, like baseball bats and tennis rackets, are also not allowed in your hand luggage. Visit your airline’s website for details about what you can and can’t bring on board.

What to wear on a flight:

  • Whether traveling short or long-haul, layering up is key to flying comfortably. Wear loose fitting, breathable fabrics that will keep you cool and pack a pullover to cope with any in-flight temperature variations. Keep your feet happy in a pair of closed-toe shoes or sneakers.
  • Consider wearing compression socks or tights to help prevent deep vein thrombosis (DVT). This condition is a result of blood clotting that can be caused by long periods of sitting, especially on long flights. Doing leg and foot exercises in your seat or walking around the cabin are good ways to improve your circulation.

How can I get a cheap last-minute flight to Alton?
The key to tracking down a cheap, spur-of-the-moment flight to Alton is to stay flexible. You can increase your odds of landing a fabulous deal if you’re not tied to specific flight times, airlines and travel dates. Also compare the prices of flying out of and into alternative airports if that’s an option.
Where can I learn more about changing or canceling my flight to Alton?
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 Alton information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
US$1,755
*Available to One Key members.