$530+ Cheap flights from St. Louis to Alexandria, LA (STL - AEX)
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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
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Cheapest flights from St. Louis to AlexandriaExplore the most affordable flight options available from St. Louis to Alexandria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from St. Louis to Alexandria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Delta deal was found by Cheapflights users on 6/12. 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.
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Alexandria 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Alexandria that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisAlexandria
STL - AEX
STLAEX
Lambert-St Louis
Mon 6/16
6:00 am-11:09 am
1 stop5h 09m
Alexandria
Thu 6/19
4:51 pm-9:34 pm
1 stop4h 43m
St. LouisAlexandria
STL - AEX
STLAEX
Lambert-St Louis
Sun 6/15
5:55 pm-10:34 pm
1 stop4h 39m
Alexandria
Tue 6/17
6:25 pm-11:19 pm
1 stop4h 54m
Best time to book a flight from St. Louis to Alexandria
Have a flexible travel schedule? Discover the best time to fly to Alexandria from St. Louis with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Alexandria
What is the cheapest month to book a flight from St. Louis to Alexandria, Louisiana?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Alexandria, Louisiana (average of $478). Flying from St. Louis to Alexandria, Louisiana in July is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Rainfall in Alexandria by month
Plan your trip to Alexandria by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Alexandria, Louisiana ranges from 3.2 - 6.4 inches per month. December is typically the wettest month, when rainfall can reach 6.4 in. August is typically the driest time to visit Alexandria, Louisiana when rainfall is around 3.2 in.
Temperature in Alexandria by month
Plan your trip to Alexandria by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Alexandria, Louisiana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).