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Cheap Flight Deals from St. Louis to Mexico City

Discover our range of affordable one-way and round-trip flights from St. Louis to Mexico City and kick-start your next adventure today!

  • One way
  • Return
      • STL17:05
        26h 40m
        1 stop
        MEX19:45
        Mon, Jan 20|St. Louis - Mexico City|Frontier Airlines
        AU$ 266AU$ 397
        33% OFF
        33% OFF
        AU$ 397AU$ 266

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Mon, Jan 20, arriving at Mexico City International Airport. One-way Prices start from AU$ 266 including taxes and charges.

      • STL08:22
        11h 23m
        1 stop
        MEX19:45
        Sun, Jan 19|St. Louis - Mexico City|Frontier Airlines
        AU$ 292AU$ 397
        27% OFF
        27% OFF
        AU$ 397AU$ 292

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Sun, Jan 19, arriving at Mexico City International Airport. One-way Prices start from AU$ 292 including taxes and charges.

      • STL06:25
        17h
        1 stop
        MEX23:25
        Tue, Jan 21|St. Louis - Mexico City|Frontier Airlines
        AU$ 295AU$ 397
        26% OFF
        26% OFF
        AU$ 397AU$ 295

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Tue, Jan 21, arriving at Mexico City International Airport. One-way Prices start from AU$ 295 including taxes and charges.

      • STL17:05
        26h 40m
        1 stop
        MEX19:45
        Tue, Jan 28|St. Louis - Mexico City|Frontier Airlines
        AU$ 295
        AU$ 295

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Tue, Jan 28, arriving at Mexico City International Airport. One-way Prices start from AU$ 295 including taxes and charges.

      • STL06:25
        18h 20m
        1 stop
        MEX00:45
        Tue, Feb 4|St. Louis - Mexico City|Frontier Airlines
        AU$ 303
        AU$ 303

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Tue, Feb 4, arriving at Mexico City International Airport. One-way Prices start from AU$ 303 including taxes and charges.

      • STL08:22
        11h 23m
        1 stop
        MEX19:45
        Sun, Jan 26|St. Louis - Mexico City|Frontier Airlines
        AU$ 315
        AU$ 315

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Sun, Jan 26, arriving at Mexico City International Airport. One-way Prices start from AU$ 315 including taxes and charges.

      • STL18:54
        23h 51m
        1 stop
        MEX18:45
        Wed, Feb 26|St. Louis - Mexico City|Frontier Airlines
        AU$ 319
        AU$ 319

        Choose Frontier Airlines flights from St. Louis to Mexico City. The one-way connecting flight with Frontier Airlines departs from St. Louis Lambert International Airport on Wed, Feb 26, arriving at Mexico City International Airport. One-way Prices start from AU$ 319 including taxes and charges.

      • STL18:00
        16h 45m
        1 stop
        MEX10:45
        Tue, Jan 21|St. Louis - Mexico City|American Airlines
        AU$ 327
        AU$ 327

        Choose American Airlines flights from St. Louis to Mexico City. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Tue, Jan 21, arriving at Mexico City International Airport. One-way Prices start from AU$ 327 including taxes and charges.

      • STL17:30
        25h 45m
        1 stop
        MEX19:15
        Tue, Jan 21|St. Louis - Mexico City|United Airlines
        AU$ 329
        AU$ 329

        Choose United Airlines flights from St. Louis to Mexico City. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Jan 21, arriving at Mexico City International Airport. One-way Prices start from AU$ 329 including taxes and charges.

      • STL15:32
        19h 13m
        1 stop
        MEX10:45
        Wed, Feb 26|St. Louis - Mexico City|United Airlines
        AU$ 335
        AU$ 335

        Choose United Airlines flights from St. Louis to Mexico City. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Wed, Feb 26, arriving at Mexico City International Airport. One-way Prices start from AU$ 335 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        MEX02:00 pm
        Thu, Jan 16|St. Louis - Mexico City|Frontier Airlines
        Find More Flights
        Find More Flights

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

Best Time to Book Flights from St. Louis to Mexico City

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Mexico City from St. Louis have changed and are set to move below.

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

Top Airlines Flying from St. Louis to Mexico City

Which airline provides the cheapest flights from St. Louis to Mexico City? Discover the option that best suits your travel needs before embarking on your journey.

Frontier Airlines
From AU$ 266
American Airlines
From AU$ 327
Southwest Airlines
From AU$ 328
United Airlines
From AU$ 329
Southern Airways Express
From AU$ 364
Air Canada
From AU$ 380
Volaris
From AU$ 417
Alaska Airlines
From AU$ 437
Delta Air Lines
From AU$ 442
Aeromexico
From AU$ 452

Find more flights and airlines

Alternative Routes from St. Louis to Mexico City

Did you know that you can save money and time on an alternative route from St. Louis to Mexico City? Check out some of the different available routes below.

  • Cheapest
    Frontier Airlines
    STL
    17:05
    26h 40m
    1 transfer
    MEX
    19:45
    St. Louis Lambert International Airport - Mexico City International Airport
    Mon, Jan 20Frontier Airlines
    AU$ 266
  • Frontier Airlines
    STL
    06:25
    13h 35m
    1 transfer
    NLU
    20:00
    St. Louis Lambert International Airport - Felipe Ángeles International Airport
    Tue, Jan 21Frontier Airlines
    AU$ 310
  • Southwest Airlines
    STL
    06:25
    16h 30m
    2 transfer
    TLC
    22:55
    St. Louis Lambert International Airport - Toluca Airport
    Thu, Jan 16Southwest Airlines
    AU$ 329
  • Southwest Airlines
    STL
    06:25
    16h 30m
    2 transfer
    TLC
    22:55
    St. Louis Lambert International Airport - Toluca Airport
    Thu, Jan 16Southwest Airlines
    AU$ 329
    Find More Flights

FAQ

  • When are flight 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 lowest 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 AU$ 796.

  • 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)?

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

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from St. Louis to Mexico City

Cheapest direct flight priceAU$ 266
Off-season for travelNovember
Peak season for travelOctober
Flight distance2,298.91km
Popular airlineAeromexico

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