$21 Cheap Flights to Affton , MO

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Flight deals we found

These prices are lower than our typical predictions for similar flights.
80% less than typical
$225
Roundtrip per traveler
Wed, May 22 - Sun, May 26
American AirlinesAmerican Airlines
6h 8m
5:29am
10:37am
CMH
1 stop • 1h 11m in DFW
STL
Found 7 hours ago
75% less than typical
$279
Roundtrip per traveler
Fri, May 24 - Sun, May 26
DeltaDelta
4h 31m
8:09pm
11:40pm
CMH
1 stop • 1h 10m in ATL
STL
Found 3 hours ago
80% less than typical
$203
Roundtrip per traveler
Wed, Aug 21 - Mon, Aug 26
American AirlinesAmerican Airlines
4h 3m
8:17pm
11:20pm
CMH
1 stop • 30m in CLT
STL
Found 11 hours ago

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How much is the cheapest flight to Affton?

Prices were available within the past 7 days and start at $21 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Sat, May 18
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 1 day ago
$108
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, May 18, priced at $108 found 1 day ago
Frontier Airlines
Tue, May 21 - Sat, Jun 8
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, Jun 8, priced at $119 found 1 day ago
Frontier Airlines
Tue, May 21 - Wed, May 29
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$127 Roundtrip, found 9 hours ago
$127
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Wed, May 29, priced at $127 found 9 hours ago
Frontier Airlines
Sun, May 19 - Sat, Jun 8
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$129 Roundtrip, found 1 day ago
$129
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 19 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, Jun 8, priced at $129 found 1 day ago
American Airlines
Wed, May 15 - Tue, May 21
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$193 Roundtrip, found 2 days ago
$193
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 15 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Tue, May 21, priced at $193 found 2 days ago

Find Your Flights to Affton STL

Cheap flights to Affton (STL)

Get started finding a cheap flight to Affton 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 Affton.

Roundtrip prices range from $48 - $193, and one-ways to Affton start as low as $21.

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 Affton (STL)

You have several options for which airline you choose to travel with to Affton. There are 10 airlines flying into STL: Frontier Airlines, American 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 Affton (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL 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 Affton that have flexible change policies?
By using our clever “No change fee” filter, that’s how. Just type in your travel details, click “Search,” then check the box underneath the “Flexible change policies” heading (left-hand side of your screen). Expedia makes it a snap to find inexpensive, flexible airfares to Affton.
What is the name of the airport in Affton?
Affton has just one airport, Lambert-St. Louis Intl. Airport (STL).
How far is STL from central Affton?
It’s 20 mi from Lambert Field to downtown Affton. Make things easy by working out the fastest way of commuting from the terminal to the city center before you land.
How can I book the cheapest flight to Affton?
If you want to have some extra money to play with during your Affton vacation, it’s always better to book in advance. Prices typically get more expensive as the departure date nears. Also research your airport options. Airfares vary based on which airport you fly into. Compare prices across airlines and try to be flexible with your travel dates. Another tip? Be ready to act fast. If you stumble on a bargain, grab it! Currently, one of the cheapest one-way tickets to Affton costs $29. This is for a flight departing Denver in May.
Which day of the week is the best day to buy a plane ticket to Affton?
Research suggests Sundays are the best day of the week for booking cheaper fares. Your odds of picking up a fantastic deal to Affton also depend on how far ahead you book your flight. The cheapest tickets can normally be found from 21 days to about 45 days out from the day of departure. You’re also likely to find great bargains when tickets are first released. Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Affton?
A flight to Affton means coming in to land at STL. Disembark the plane, pick up your bags and you’ll be 20 mi from the downtown area.
Which airlines fly to Affton?
From departure to touchdown, you can look forward to a comfortable onboard experience with American Airlines. One of 9 airlines that connects Affton with 60 airports worldwide, it operates the greatest number of services between Chicago and Affton. United Airlines is also a favorite with travelers.
How many nonstop flights are there to Affton?
Flying to somewhere new is much easier when there aren’t any stopovers to worry about. If you’re making your way to Affton, the good news is that there are roughly 1,273 direct flights operating each week.
Where are the most popular flights to Affton departing from?
Travelers often set off from Chicago, Denver and Dallas airports when heading to Affton.
Do you have any tips for my flight to Affton?

  • Wherever you’re traveling, flying can be a pleasant experience if you’re well prepared. First, pack your passport, travel documents and medications. Next, toss in a little extra in-flight entertainment to help the time fly by. A juicy novel and a tablet filled with the latest movies are good options. If you plan to take a short nap, a quality neck pillow and earplugs will also come in handy.
  • Remember that there’s also a list of prohibited items for your hand luggage which can differ between airlines. Generally, avoid packing anything explosive, flammable or sharp. This includes things like box cutters, razor blades, aerosol cans and flares. Sports equipment like baseball bats, ski poles and objects that could harm passengers, such as swords and batons, are also banned from the cabin.

What to wear on a flight:

  • Whether traveling short or long-haul, wearing layers will help you stay comfortable. 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 sneakers or flat shoes.
  • The condition known as deep vein thrombosis (DVT) is a risk on long-distance flights. It’s the result of blood clotting due to poor circulation and inactivity. Strolling up and down the aisle and doing leg and foot stretches while seated can prevent it developing. Wearing compression socks or tights can also help to lessen your risk.

How can I get a cheap last-minute flight to Affton?
If you want to grab a cheap, spur-of-the-moment flight to Affton, flexibility is important. If you can, have a bit of wiggle room with the dates you plan to fly. It also pays to have some flexibility with your arrival and departure airports, choice of airline, flight times and possible layovers or stops.
Where can I learn more about changing or canceling my flight to Affton?
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 Affton information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$108
Popular airline
Delta

Trending flights to Affton

Prices were available within the past 7 days and start at $21 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Tue, May 7
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$48 Roundtrip, found 2 days ago
$48
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 7 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, May 7, priced at $48 found 2 days ago
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