Cheap Flights to Alton , IL from CA $168

View CA $168 flight on Fri, Jul 31, 2026Opens in a new window

Popular airlines to Alton

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How much is the cheapest flight to Alton?

Prices were available within the past 7 days and start at CA $168 for one-way flights and CA $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Aug 15 - Tue, Aug 25
DTW
Detroit
STL
St. Louis
CA $333 Roundtrip, found 18 hours ago
CA $333
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Aug 15 from Detroit to St. Louis, returning Tue, Aug 25, priced at CA $333 found 18 hours ago
American Airlines
Tue, Jul 14 - Sat, Jul 18
DTW
Detroit
STL
St. Louis
CA $349 Roundtrip, found 5 days ago
CA $349
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jul 14 from Detroit to St. Louis, returning Sat, Jul 18, priced at CA $349 found 5 days ago
United
Tue, Oct 6 - Sun, Oct 11
YVR
Vancouver
STL
St. Louis
CA $375 Roundtrip, found 3 hours ago
CA $375
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Oct 6 from Vancouver to St. Louis, returning Sun, Oct 11, priced at CA $375 found 3 hours ago
Air Canada
Wed, Sep 9 - Sat, Sep 12
YVR
Vancouver
STL
St. Louis
CA $448 Roundtrip, found 15 hours ago
CA $448
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Wed, Sep 9 from Vancouver to St. Louis, returning Sat, Sep 12, priced at CA $448 found 15 hours ago
Alaska Airlines
Thu, Aug 13 - Tue, Sep 1
LAX
Los Angeles
STL
St. Louis
CA $578 Roundtrip, found 1 day ago
CA $578
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Aug 13 from Los Angeles to St. Louis, returning Tue, Sep 1, priced at CA $578 found 1 day ago

Frequently asked questions

What is the name of Alton's airport?
Lambert-St. Louis Intl. Airport (STL) is the main airport serving Alton.
How far is Lambert Field from central Alton?
It's 23 kilometres from STL to downtown Alton. Make things easier by working out the best way of travelling from the terminal to the city centre before you touchdown.
What airport is best to fly into Alton?
STL is the only major airport in Alton. Before your flight, it's a good idea to find out a little about it. It is located 23 kilometres from the downtown area.
How many airlines fly to Alton?
There are 12 airlines connecting Alton to 61 airports from all over the globe.
Which airlines fly to Alton?
United Airlines and American Airlines offer the most flights to Alton. One of the most preferred ways to travel there is on a United Airlines flight from Chicago.
How many nonstop flights are there to Alton?
Flying to somewhere new is much more straightforward when there aren't any stopovers involved. If you're off to Alton, the awesome news is that there are 1,206 nonstop flights every week.
Where are the most popular flights to Alton departing from?
A large number of flights to Alton depart from Chicago, Dallas and New York airports.
How long is the flight to Alton Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to enjoy. From Chicago to Alton, the average flight time is 1 hour and 22 minutes. From Dallas it takes about 1 hour and 43 minutes, and from New York it's 3 hours and 1 minute.
How to book the cheapest flight to Alton?
We all know those travellers who somehow manage to get incredibly cheap plane tickets wherever they go. Eager to know how to do it for your Alton vacation? Don't leave it until the last moment to secure your flight. Don't stop there, though. Do some research and find out if there are a few airports at your destination. Ticket prices often differ depending on the airport you pick. Make sure you compare prices across air carriers as well. Lastly, be prepared to secure your seat quickly if you stumble on a great deal. It might not be available for long. With a bit of knowledge and some good fortune, the ideal airfare will be yours.
Do you have any tips for my flight to Alton?
No matter where you're coming from, flying can be a pleasurable experience if you're prepared. Follow these handy travel tips that will get your Alton escape started on the right note. What to pack in your hand luggage:

  • First of all, put in your passport, important documents, wallet and medications. Next, you'll want some in-flight entertainment to while away the hours. A juicy book and a laptop crammed with your favourite shows are some wonderful options. If you hope to take a short nap, a quality neck pillow and some earplugs will also be useful. Finally, squeeze in a toothbrush and some deodorant so you'll hop off the plane looking and feeling fresh.

Do not pack the following items in your hand luggage:

  • Double-check that you don't have a Swiss Army knife lurking in one of the zippers of your carry-on luggage. Other restricted items include explosive or flammable goods, such as fuel and matches, and liquids and gels in containers larger than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • You'll want to choose comfort over style. Prepare for temperature changes by wearing layers, and pick flat, easy-to-remove shoes like slip-ons.
  • Deep vein thrombosis (DVT), a blood clotting condition caused by prolonged inactivity, can be a risk on long-haul flights. Wander around the cabin and stretch your legs or do some simple exercises in your seat to improve your circulation.

How to get through airport security fast when flying to Alton?
Being prepared before you get to the airport can make your getaway to Alton a piece of cake. Check out our handy hints for a swift journey through security:

  • First things first. Your passport and boarding pass will need to be inspected by airport security personnel. Keep them handy to avoid fumbling around for them.
  • Your coat, belt, keys and other contents of your pockets, like your headphones, will need to go on a tray through the X-ray machine. Make the whole process faster by removing them as it gets closer to your turn.
  • Your electronic gadgets like phones and laptops will also need to go on a tray for inspection. No need to worry though, you'll be back online soon enough.
  • Don't forget to remove liquids and gels from your carry-on luggage. They often need to be sent through the X-ray machine separately. Each item should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a single quart-size (one litre), clear zip-lock bag.
  • Slip-on shoes are a sensible footwear choice as you're less likely to be required to remove them when going through security. Hiking boots and other bulky shoes are usually subjected to extra screening.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, pack them in your checked suitcase. They won't be allowed on board and will be confiscated.

Book with confidence

Expedia.ca gives you the best tools to secure great deals on flights to Alton. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Alton. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Alton.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Alton flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Alton.

Looking to save even more? Get additional savings by bundling your Alton flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Alton trip!

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $333

Trending flights to Alton

Prices were available within the past 7 days and start at CA $168 for one-way flights and CA $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 6 - Sun, Oct 11
YVR
Vancouver
STL
St. Louis
CA $375 Roundtrip, found 3 hours ago
CA $375
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Oct 6 from Vancouver to St. Louis, returning Sun, Oct 11, priced at CA $375 found 3 hours ago

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