$262 Cheap Flights from St. Louis (STL) to Aguascalientes (AGU)

View $262 flight on Wed, Jan 21, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Aguascalientes International Airport (AGU)

Cheap Flights from St. Louis to Aguascalientes (STL-AGU)

Prices were available within the past 7 days and start at $262 for one-way flights and $496 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$496 Roundtrip, found 1 day ago
$496
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $496 found 1 day ago
United
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$496 Roundtrip, found 1 day ago
$496
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $496 found 1 day ago
United
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$500 Roundtrip, found 1 day ago
$500
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $500 found 1 day ago
American Airlines
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$505 Roundtrip, found 1 day ago
$505
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $505 found 1 day ago
United
Wed, Nov 26 - Tue, Dec 2
STL
St. Louis
AGU
Aguascalientes
$511 Roundtrip, found 1 day ago
$511
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 26 from St. Louis to Aguascalientes, returning Tue, Dec 2, priced at $511 found 1 day ago
American Airlines
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$515 Roundtrip, found 1 day ago
$515
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $515 found 1 day ago
United
Tue, Jan 13 - Thu, Jan 22
STL
St. Louis
AGU
Aguascalientes
$515 Roundtrip, found 1 day ago
$515
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jan 13 from St. Louis to Aguascalientes, returning Thu, Jan 22, priced at $515 found 1 day ago
Aeromexico
Tue, Jan 20 - Thu, Jan 29
STL
St. Louis
AGU
Aguascalientes
$530 Roundtrip, found 1 day ago
$530
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 20 from St. Louis to Aguascalientes, returning Thu, Jan 29, priced at $530 found 1 day ago
Delta
Sun, Feb 1 - Wed, Feb 11
STL
St. Louis
AGU
Aguascalientes
$530 Roundtrip, found 1 day ago
$530
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Feb 1 from St. Louis to Aguascalientes, returning Wed, Feb 11, priced at $530 found 1 day ago
Frontier Airlines
Sat, Nov 15 - Wed, Nov 19
STL
St. Louis
AGU
Aguascalientes
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Nov 15 from St. Louis to Aguascalientes, returning Wed, Nov 19, priced at $536 found 4 days ago

Find the cheapest month to fly from St. Louis (STL) to Aguascalientes (AGU)

May is typically the cheapest month to fly

From $453 - $1,094 per traveler.

Alternative airports near Aguascalientes

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Licenciado Jesus Teran Peredo Intl. AGU. Cheapest and Closest option available. Average driving time to city center is 22 minutes. Flights from $690
AGU
Licenciado Jesus Teran Peredo Intl.
CheapestClosest
Average driving time to city center22 min
Flights from $690

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU) cost?
Secure a cheap one-way flight from $262 or cheap return flight from $496 from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU)?
Flying in January is a good way to save, as it's the cheapest month for flights between STL and AGU. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to AGU. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to AGU?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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 Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU) last-minute?
Waiting until just before your departure to book your flight from STL to AGU often results in higher prices. While you may come across some last-minute offers, they aren't always guaranteed. Keep your travel schedule open to boost your chances of landing a bargain.
Is it cheaper to book a STL to AGU flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to AGU flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the stress out of travel planning. Just secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Licenciado Jesus Teran Peredo Intl. Airport (AGU)?
In most instances, you're able to cancel or reschedule your STL to AGU flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further details, go to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Licenciado Jesus Teran Peredo Intl.
Airlines serving
Aeromexico, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$495
Distance
1373 mi

Book with confidence

St. Louis to Aguascalientes Flights

The cheapest times to fly from St. Louis to Aguascalientes

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Aguascalientes are during the month of January. You can find some of the cheapest flights from St. Louis to Aguascalientes with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Aguascalientes

Sunday is one of the best days to book for cheap flights from St. Louis to Aguascalientes: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Aguascalientes

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Aguascalientes in 2025. You can also book with separate airlines for your outbound and return journeys, from $262 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Aguascalientes flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Aguascalientes airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Aguascalientes Flights

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*Available to One Key members.