Flights from St. Louis to Mexico City Starting at £140

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from St. Louis to Mexico City

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Cheapest flights

From price

9 16
16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight tickets from St. Louis (STL) to Mexico City (MEX) the cheapest?

Airlines adjust prices for flights from St. Louis to Mexico City based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from St. Louis (STL) to Mexico City (MEX) cost?

According to Trip.com's data, the lowest price is around £432.
What is the transportation method from the main airport to downtown in Mexico City?
- The distance from Mexico City International Airport to downtown is about 6km, by taxi about 20 minutes.
- The distance from Felipe Ángeles International Airport to downtown is about 35km, by taxi about 50 minutes.
- The distance from Toluca Airport to downtown is about 47km, by taxi about 1 hour.
How many airports in Mexico City (MEX)?

There are 3 airport(s) in Mexico City (MEX): Mexico City International Airport, Felipe Ángeles International Airport and Toluca Airport.

How to find a cheap flight from St. Louis to Mexico City

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Mexico City. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest flight from St. Louis to Mexico City.

Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from St. Louis to Mexico City over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Thu, Mar 27, with one-way flights priced at just £140.

Compare cheap flight deals from St. Louis to Mexico City across hundreds of airlines.

With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from St. Louis to Mexico City. The cheapest airline for this route is Frontier Airlines.

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Book early or wait until the last minute.

It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.

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For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from St. Louis to Mexico City and snag some exclusive deals just for you.

Flight Information from St. Louis to Mexico City

Cheapest direct flight price	£139
Off-season travel month	March
Peak season for travel	June
Flight distance	2,298.91km
Popular airline	Aeromexico