Cheapest return flights from Phoenix to Mexico City in September from $371

AirHint found the following cheapest return flights from Phoenix (PHX) to Mexico City (MEX) in September 2025 (see full year).

Return flights

05 Sep - 08 Sep Frontier Airlines
08 Sep - 26 Sep Volaris
06 Sep - 08 Sep Frontier Airlines
08 Sep - 26 Sep Aeromexico direct
21 Sep - 25 Sep Frontier Airlines
05 Sep - 08 Sep Delta direct
06 Sep - 08 Sep Delta direct
21 Sep - 25 Sep Delta direct
05 Sep - 09 Sep Delta direct

Also check the deals for one-way flights from Phoenix to Mexico City in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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