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

Return flights

31 Oct - 07 Nov	Volaris
28 Oct - 31 Oct	Frontier Airlines
27 Oct - 28 Oct	Frontier Airlines
26 Oct - 31 Oct	Aeromexico
31 Oct - 02 Nov	Volaris
21 Oct - 28 Oct	Frontier Airlines
30 Oct - 04 Nov	Volaris
21 Oct - 22 Oct	Volaris
24 Oct - 26 Oct	Aeromexico	direct
26 Oct - 31 Oct	Delta	direct
27 Oct - 28 Oct	Delta	direct
21 Oct - 28 Oct	Delta	direct
31 Oct - 04 Nov	Volaris
20 Oct - 23 Oct	Frontier Airlines
31 Oct - 03 Nov	Volaris
28 Oct - 03 Nov	Frontier Airlines
19 Oct - 09 Nov	Volaris
19 Oct - 09 Nov	Delta	direct
28 Oct - 03 Nov	Delta	direct
30 Oct - 06 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 273€

Return flights