$183 Cheap Flights from Alexandria (AEX) to St. Louis (STL)

View $183 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Alexandria, LA (AEX-Alexandria Intl.) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Alexandria to St. Louis (AEX-STL)

Prices were available within the past 7 days and start at $183 for one-way flights and $336 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Aug 26 - Wed, Sep 3
AEX
Alexandria
STL
St. Louis
$336 Roundtrip, found 4 days ago
$336
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Aug 26 from Alexandria to St. Louis, returning Wed, Sep 3, priced at $336 found 4 days ago
Delta
Tue, Sep 16 - Tue, Sep 23
AEX
Alexandria
STL
St. Louis
$346 Roundtrip, found 3 days ago
$346
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 16 from Alexandria to St. Louis, returning Tue, Sep 23, priced at $346 found 3 days ago
American Airlines
Fri, Aug 8 - Wed, Aug 13
AEX
Alexandria
STL
St. Louis
$356 Roundtrip, found 3 hours ago
$356
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Aug 8 from Alexandria to St. Louis, returning Wed, Aug 13, priced at $356 found 3 hours ago
American Airlines
Wed, Aug 6 - Sun, Aug 10
AEX
Alexandria
STL
St. Louis
$360 Roundtrip, found 4 days ago
$360
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Aug 6 from Alexandria to St. Louis, returning Sun, Aug 10, priced at $360 found 4 days ago
American Airlines
Fri, Aug 8 - Wed, Aug 13
AEX
Alexandria
STL
St. Louis
$362 Roundtrip, found 3 hours ago
$362
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Aug 8 from Alexandria to St. Louis, returning Wed, Aug 13, priced at $362 found 3 hours ago
American Airlines
Wed, Jul 23 - Wed, Aug 20
AEX
Alexandria
STL
St. Louis
$375 Roundtrip, found 3 days ago
$375
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jul 23 from Alexandria to St. Louis, returning Wed, Aug 20, priced at $375 found 3 days ago
Delta
Mon, Aug 4 - Sat, Aug 9
AEX
Alexandria
STL
St. Louis
$376 Roundtrip, found 1 day ago
$376
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 4 from Alexandria to St. Louis, returning Sat, Aug 9, priced at $376 found 1 day ago
American Airlines
Wed, Jul 23 - Wed, Aug 20
AEX
Alexandria
STL
St. Louis
$381 Roundtrip, found 3 days ago
$381
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jul 23 from Alexandria to St. Louis, returning Wed, Aug 20, priced at $381 found 3 days ago
Delta
Wed, Jul 23 - Thu, Aug 7
AEX
Alexandria
STL
St. Louis
$385 Roundtrip, found 8 hours ago
$385
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, Jul 23 from Alexandria to St. Louis, returning Thu, Aug 7, priced at $385 found 8 hours ago
Delta
Sun, Aug 31 - Tue, Sep 2
AEX
Alexandria
STL
St. Louis
$394 Roundtrip, found 4 days ago
$394
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Aug 31 from Alexandria to St. Louis, returning Tue, Sep 2, priced at $394 found 4 days ago

Find the cheapest month to fly from Alexandria (AEX) to St. Louis (STL)

November is typically the cheapest month to fly

From $186 - $748 per traveler.

Graph displaying average flight prices per month

Flights from Alexandria (AEX) to St. Louis (STL)
Origin airport
Alexandria Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$336
Distance
527 mi

Frequently asked questions

How much does a flight from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from AEX to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from AEX to STL?
The cheapest flights from AEX to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from AEX to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from AEX to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL)?
You'll need to book a flight with a layover if you're traveling from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from AEX to STL?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL)?
Choose a flight from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your flight from AEX to STL right before your journey is typically more expensive. However, if there's some wiggle room with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book an AEX to STL flight and hotel package?
You can save money by securing an AEX to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Alexandria Intl. Airport (AEX) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your AEX to STL flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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