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$572+ Cheap flights from Aguascalientes, Mexico (AGU) to St. Louis (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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
AGU — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Aguascalientes to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Aguascalientes (AGU) 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 11, 2025.

Round-trip from

$572
(Kiwi.com)
From Aguascalients to Lambert-St Louis
Search Deals

Find flight deals from Aguascalientes to St. Louis

Cheapest flights from Aguascalientes to St. Louis
Explore the most affordable flight options available from Aguascalientes to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:39 pmAGU - STL
2 stops35h 27mMultiple Airlines
Tue 9/3010:21 amSTL - AGU
1 stop23h 49mMultiple Airlines
Deal found 9/11$572
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:00 amAGU - STL
1 stop14h 08mUnited Airlines
Tue 9/305:11 pmSTL - AGU
1 stop19h 22mUnited Airlines
Deal found 9/11$660
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:00 amAGU - STL
2 stops15h 53mUnited Airlines
Wed 9/179:17 amSTL - AGU
2 stops11h 10mUnited Airlines
Deal found 9/11$776

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aguascalientes 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Aguascalientes to St. Louis that are best for you.

Fly from

Aguascalientes

Fly to

St. Louis

Route

Depart

Return

Price

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Sun 9/21

8:39 pm-9:06 am

2 stops35h 27m

Lambert-St Louis

Tue 9/30

10:21 am-9:10 am

1 stop23h 49m

$572

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Sun 9/21

7:00 am-10:08 pm

1 stop14h 08m

Lambert-St Louis

Tue 9/30

5:11 pm-11:33 am

1 stop19h 22m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Aguascalientes to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Aguascalientes with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Aguascalientes to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Aguascalientes to St. Louis?

    A quick flight from Aguascalientes to St. Louis can take about 14h 08m. United Airlines provides one of the quickest options available for as low as $660. The distance from Aguascalientes to St. Louis is about 1373 mi.

  • Can I find deals for flights from Aguascalientes to St. Louis that include hotel bookings?

    Yes. In addition to deals on Aguascalientes to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Aguascalientes to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Aguascalientes to St. Louis.

  • Can I find deals for business class flights from Aguascalientes to St. Louis?

    Yes. Cheapflights offers flight deals from Aguascalientes to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Aguascalientes to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Aguascalientes to St. Louis (average of $311). Flying from Aguascalientes to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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