Cheap Flights from St Louis to Aguascalientes

Compare St Louis to Aguascalientes flight deals

Find the cheapest month or even day of the year to fly to Aguascalientes

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Flight deals from St Louis to Aguascalientes

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Aguascalientes Airport? If you want to travel next month, return fares start from $1,731. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Aguascalientes

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Aguascalientes flights are currently cheapest in November.

St Louis to Aguascalientes: Alternative routes

Compare routes from St Louis to Aguascalientes below. You may find an airport to fly into that's cheaper, faster, or easier than Aguascalientes.

St Louis to Aguascalientes: Flight information

The things to know before you go.
Cheapest flight found$1,167
Cheapest month to flyNovember

Finding cheap flights from St Louis to Aguascalientes: Frequently asked questions

The best price we found for a return flight from St Louis to Aguascalientes is $1,167. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Aguascalientes. But we found flights with one or more stops from $1,165.
As of June 2026, there are no flights flying from St Louis to Aguascalientes.
The cheapest month to fly from St Louis to Aguascalientes is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Aguascalientes Airport on Sunday, 1 November 2026.
No airlines currently offer direct flights between St Louis Airport and Aguascalientes Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Aguascalientes but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Aguascalientes is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Aguascalientes.

Travelling from St Louis Airport (STL) to Aguascalientes Airport (AGU): what you need to know

  • St Louis and Aguascalientes share the same timezone, UTC-6.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your STL to AGU flight.

  • You can expect bigger queues in popular months such as July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a good idea.

  • Pick a stopover if you'd love to break up your flight. Simply uncheck 'Direct flights only' to look at your options for tickets from St Louis Airport to Aguascalientes Airport. Dallas Fort Worth International Airport is a top stopover on the STL to AGU route.

How to find the cheapest flights from St Louis Airport (STL) to Aguascalientes Airport (AGU)

  • The cheapest price we've seen for a one-way St Louis Airport to Aguascalientes Airport flight is $493. A round-trip plane ticket right now is $1,165. Depending on the availability when you book, these fares may change.

  • It's usually best to book ahead of time if you're looking for cheap tickets from STL to AGU. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • If you can be flexible with your travel plans, try using the 'Whole month' tool. It'll show you the lowest price across every month when searching for your flight from St Louis Airport to Aguascalientes Airport.

  • Landing cheap flights from STL to AGU couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Tailor your flights with filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from St Louis Airport to Aguascalientes Airport.

Handy information about St Louis Airport (STL)

Arriving at Aguascalientes Airport (AGU)

  • Get off your St Louis Airport to Aguascalientes Airport flight and jump into your hotel bed shortly after. If you want a comfy option within easy reach of AGU, consider Hampton Inn & Suites by Hilton Aguascalientes Aeropuerto.

  • Get your adventure underway by picking up a Aguascalientes Airport rental car. Grab your wheels from Budget, Europcar or Keddy By Europcar to explore Aguascalientes and beyond.

  • For the lowest price, reserve your vehicle from Aguascalientes Airport around one week in advance.

Getting from Aguascalientes Airport (AGU) to central Aguascalientes

  • From Aguascalientes Airport, Aguascalientes is approximately 24 kilometres away. It takes around 25 minutes to reach the centre by car.

  • Travelling by public transport takes about 50 minutes.

When to fly to Aguascalientes Airport (AGU)

  • September is the most popular month for flights from St Louis Airport to Aguascalientes Airport. For smaller crowds, visit Aguascalientes in March.

  • When booking your flight from St Louis Airport to Aguascalientes Airport, think about the type of weather you like. May is the warmest month in Aguascalientes, with the temperature ranging from 13ºC to 33ºC.

  • For cooler conditions, search for a cheap ticket from STL to AGU in January. Temperatures average between 6ºC and 24ºC then.

Explore more of Mexico

  • Mexico City is just one of the many cities in Mexico waiting to be discovered after you've experienced Aguascalientes. Around 434 kilometres away to the south-east, its best attractions include Zócalo, Historic Centre (Centro Historico) and Basilica of Our Lady of Guadalupe.

  • If you're ready to explore another great destination in Mexico, head for Ecatepec de Morelos, roughly 418 kilometres south-east of Aguascalientes. Zoologico Zacango, Centro Ecoturistico y Educación Ambiental Sierra de Guadalupe and Botanical Garden are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.