US$149️ Cheap Flights from St. Louis to Mexico City (2024)

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St. Louis to Mexico City - Flights Starting at US$149

Book one-way or return flights from St. Louis to Mexico City from as little as US$149. Choose from the popular airlines below and book your flight today!

One way
Round-trip

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

We've found these cheap flights for you. You may book a one-way or round trip as per your needs.

We monitor flight fares to help you seize the best deals effortlessly

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

Cheapest airlines flights from St. Louis to Mexico City

View airlines operating flights from St. Louis to Mexico City. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From US$149

American Airlines

From US$172

Delta Air Lines

From US$199

Southern Airways Express

From US$202

United Airlines

From US$215

Aeromexico

From US$268

Southwest Airlines

From US$310

Air Canada

From US$372

Volaris

From US$551

Alaska Airlines

From US$779

ANA airlines

Find more flights and airlines

Alternative Routes from St. Louis to Mexico City

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Mexico City.

Cheapest
STL
17:35
24h 55m
1 transfer
MEX
17:30
St. Louis Lambert International Airport - Mexico City International Airport
Fri, May 3Frontier Airlines
US$149
STL
11:23
24h 26m
1 transfer
NLU
10:49
St. Louis Lambert International Airport - Felipe Ángeles International Airport
Wed, May 1Frontier Airlines
US$174
STL
11:23
13h 32m
1 transfer
TLC
23:55
St. Louis Lambert International Airport - Toluca Airport
Wed, May 1Frontier Airlines
US$202
STL
11:23
13h 32m
1 transfer
TLC
23:55
St. Louis Lambert International Airport - Toluca Airport
Wed, May 1Frontier Airlines
US$202
Find More Flights

Frequently Asked Questions

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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from St. Louis (STL) to Mexico City (MEX) cost?
According to Trip.com's data, the lowest price is around $585.
What is the transportation method from the main airport to downtown in Mexico City?
- The distance from Benito Juárez International Airport to downtown is about 6km. It takes about 20 minutes by taxi.
- The distance from Felipe Ángeles International Airport to downtown is about 35km. It takes about 50 minutes by taxi.
- The distance from Toluca Airport to downtown is about 47km. It takes about 1 hour by taxi.

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.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

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