Skip to main content
Beginning of main content

Cheap Flights from St. Louis to Mexico City $339.93

Search over 282,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Best Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheapest Flights from St. Louis to Mexico City (STL to MEX)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Mexico City (STL to MEX)

Question : Looking for the cheapest flight over the next 30 days?
Answer : Since low prices are preferred, look at December 6th. As of November 28th, the cheapest ticket sales are coming in 42% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.

Question : Do travelers from Saint Louis typically stay in Mexico City for very long?
Answer : Over the next two months, travelers from STL to MEX are planning on staying for 16 days on average.

Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : For the month of December, the cheapest day to fly is Saturday. Flexibility is paramount when booking travel plans in order to keep costs down.

Question : Are prices changing frequently for this route?
Answer : Prices for STL to MEX do fluctuate a lot more than most. Remember, the sooner you book, the more you're able to save.