$328+ Cheap flights from Alexandria, LA to St. Louis (AEX - STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
AEX — STL
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Alexandria to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Alexandria to St. Louis
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Best
Last-minute
Cheapest flights from Alexandria to St. LouisExplore the most affordable flight options available from Alexandria to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Alexandria to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:17 pm -
1 stop6h 25m
Sat 10/1710:12 am -
1 stop6h 35m
Deal found 9/22![American Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:05 pm -
1 stop6h 25m
Sat 10/176:00 am -
2 stops9h 30m
Deal found 9/22![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:25 pm -
1 stop6h 40m
Wed 12/233:48 pm -
1 stop4h 56m
Deal found 9/20![Delta logo]()
$348
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am -
1 stop6h 03m
Sat 10/107:10 pm -
1 stop4h 36m
Deal found 9/20![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:45 am -
2 stops11h 36m
Sat 10/103:12 pm -
1 stop4h 48m
Deal found 9/20![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:22 pm -
1 stop4h 37m
Tue 12/811:34 am -
2 stops11h 23m
Deal found 9/20![American Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/184:00 pm -
1 stop6h 30m
Wed 12/236:15 am -
1 stop13h 57m
Deal found 9/20![United Airlines logo]()
$519
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1811:30 am -
1 stop6h 36m
Wed 12/238:22 pm -
2 stops14h 38m
Deal found 9/20![American Airlines logo]()
$617
Best flights from Alexandria to St. LouisDiscover carefully curated flight deals from Alexandria to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Alexandria to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:17 pm -
1 stop6h 25m
Sat 10/1710:12 am -
1 stop6h 35m
Deal found 9/22![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:25 pm -
1 stop6h 40m
Tue 12/86:00 am -
1 stop5h 12m
Deal found 9/20![Delta logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:05 pm -
1 stop6h 25m
Sat 10/176:00 am -
2 stops9h 30m
Deal found 9/22![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:25 pm -
1 stop6h 40m
Wed 12/233:48 pm -
1 stop4h 56m
Deal found 9/20![Delta logo]()
$348
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am -
1 stop6h 03m
Sat 10/107:10 pm -
1 stop4h 36m
Deal found 9/20![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:45 am -
2 stops11h 36m
Sat 10/103:12 pm -
1 stop4h 48m
Deal found 9/20![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1811:30 am -
1 stop6h 36m
Wed 12/238:22 pm -
2 stops14h 38m
Deal found 9/20![American Airlines logo]()
$617
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/184:00 pm -
1 stop6h 30m
Wed 12/238:05 am -
2 stops31h 20m
Deal found 9/23![United Airlines logo]()
$641
Last-minute flights from Alexandria to St. LouisDiscover last-minute flight deals from Alexandria to St. Louis. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Alexandria to St. Louis. Data last updated September 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am -
1 stop6h 03m
Sat 10/107:10 pm -
1 stop4h 36m
Deal found 9/20![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:45 am -
2 stops11h 36m
Sat 10/103:12 pm -
1 stop4h 48m
Deal found 9/20![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:17 pm -
1 stop6h 25m
Sat 10/1710:12 am -
1 stop6h 35m
Deal found 9/22![American Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:05 pm -
1 stop6h 25m
Sat 10/176:00 am -
2 stops9h 30m
Deal found 9/22![United Airlines logo]()
$334
Find flight deals from Alexandria to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Alexandria (AEX) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Alexandria to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
Use the filters below to find and compare flights from Alexandria to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Fri 10/16
5:17 pm-11:42 pm
1 stop6h 25m
Lambert-St Louis
Sat 10/17
10:12 am-4:47 pm
1 stop6h 35m
$328
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Tue 12/1
5:25 pm-12:05 am
1 stop6h 40m
Lambert-St Louis
Tue 12/8
6:00 am-11:12 am
1 stop5h 12m
$328
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Fri 10/16
4:05 pm-10:30 pm
1 stop6h 25m
Lambert-St Louis
Sat 10/17
6:00 am-3:30 pm
2 stops9h 30m
$334
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Fri 12/18
5:25 pm-12:05 am
1 stop6h 40m
Lambert-St Louis
Wed 12/23
3:48 pm-8:44 pm
1 stop4h 56m
$348
Quickest round-trip
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Tue 10/6
6:00 am-12:03 pm
1 stop6h 03m
Lambert-St Louis
Sat 10/10
7:10 pm-11:46 pm
1 stop4h 36m
$358
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Tue 10/6
9:45 am-9:21 pm
2 stops11h 36m
Lambert-St Louis
Sat 10/10
3:12 pm-8:00 pm
1 stop4h 48m
$364
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Fri 12/18
11:30 am-6:06 pm
1 stop6h 36m
Lambert-St Louis
Wed 12/23
8:22 pm-11:00 am
2 stops14h 38m
$617
AlexandriaSt. Louis
AEX Alexandria - STL Lambert-St Louis
AEXSTL
Alexandria
Fri 12/18
4:00 pm-10:30 pm
1 stop6h 30m
Lambert-St Louis
Wed 12/23
8:05 am-3:25 pm
2 stops31h 20m
$641
Sorted by cheapest first
Compare providers for flights from Alexandria to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Alexandria to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Alexandria, Louisiana-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Alexandria, Louisiana-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Alexandria, Louisiana-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Alexandria, Louisiana-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Alexandria, Louisiana-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Alexandria to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Alexandria with our price prediction graph.
AEX-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 24, 2026.
Peruse reviews from past customers who have flown with American Airlines from Alexandria to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.9
Food
6.4
Overall
7.0
Boarding
7.4
Comfort
7.2
Entertainment
6.8
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Crew
7.9
Food
6.4
Overall
7.0
Boarding
7.4
Comfort
7.2
Entertainment
6.8
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Related info for your journey
Find useful and relevant information for your journey from Alexandria to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Collinsville
Edwardsville
Glencoe
Chesterfield
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Alexandria and St. Louis flights
Browse other Alexandria and St. Louis flight options. Last updated on September 24, 2026.
Other flights from Alexandria
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Other flights to St. Louis
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Top airline flying from Alexandria to St. Louis
Discover the top airline that operate flights from Alexandria to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$395 | FlexibilityNo cancel fee | On-time71% |