HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$289+ Cheap flights from Aguascalientes, Mexico (AGU) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
AGU — STL
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Aguascalientes 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 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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$496
(United Airlines)

One-way from

$289
(United Airlines)
Provider with most accurate pricing for Aguascalients-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Aguascalients-Lambert-St Louis flights.
Search Deals
From Aguascalients to Lambert-St Louis
Search Deals
One-way flight 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 April 29, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 6/37:00 amAGU - STL
2 stops14h 45mUnited Airlines
Fri 6/610:22 amSTL - AGU
1 stop10h 05mUnited Airlines
Deal found 4/29$496

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 April 29, 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

Tue 6/3

7:00 am-10:45 pm

2 stops14h 45m

Lambert-St Louis

Fri 6/6

10:22 am-7:27 pm

1 stop10h 05m

$496

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Sun 6/1

7:00 am-12:46 pm

2 stops28h 46m

$289

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Mon 5/5

7:07 pm-9:59 am

2 stops37h 52m

$369

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Sun 5/4

10:05 am-4:00 pm

1 stop28h 55m

$376

AguascalientesSt. Louis

AGU - STL

AGUSTL

Aguascalients

Mon 5/5

5:05 am-4:22 pm

1 stop10h 17m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

  • Most accurate provider: When it comes to deals on Aguascalientes-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Aguascalientes-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Aguascalientes-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Aguascalientes-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 Aguascalientes-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 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.

Cheapflights Insights

Everything you need to know about your flight from Aguascalientes to St. Louis

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 32.0 F).

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 April 29, 2025.
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Volaris
6.7
Okay
1,174 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

  • What are the cheapest airlines to fly from Aguascalientes to St. Louis one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $289. Volaris flights start at $376 while deals on American Airlines start at $488 one-way.

  • 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 Aguascalientes?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.