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

Return flights

19 Oct - 09 Nov	Delta	direct
31 Oct - 09 Nov	United
06 Oct - 10 Oct	Frontier Airlines
29 Oct - 03 Nov	Volaris
03 Oct - 06 Oct	Delta	direct
30 Oct - 03 Nov	Volaris
30 Oct - 04 Nov	Frontier Airlines
31 Oct - 02 Nov	Frontier Airlines
31 Oct - 09 Nov	Delta	direct
06 Oct - 10 Oct	Delta	direct
31 Oct - 02 Nov	Delta	direct
29 Oct - 03 Nov	Delta	direct
30 Oct - 04 Nov	Delta	direct

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

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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Cheapest return flights from Phoenix to Mexico City in October from 277€

Return flights