Route Price Intelligence
Cheap Flights From St. Louis to Mexico City
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Mexico City usually runs about $644 round trip from St. Louis, so $411 on Volaris, one stop, is a solid markdown. Dates are open September through December, plenty of time to explore the city's museums and street food scene before the holidays get busy. Mexico City fares have been dropping across several origins this week, so this is part of a broader trend.
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Best Time to Fly from St. Louis to Mexico City
The cheapest time to fly from St. Louis to Mexico City is typically July, when fares average around $467. The most expensive month tends to be December at around $669. For the best deals, consider flying in July, August, June.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route