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

Return flights

18 Oct - 21 Oct	Volaris
07 Oct - 14 Oct	Volaris
17 Oct - 26 Oct	Aeromexico	direct
15 Oct - 22 Oct	Aeromexico	direct
18 Oct - 24 Oct	Aeromexico	direct
15 Oct - 21 Oct	Aeromexico	direct
18 Oct - 21 Oct	Aeromexico	direct
09 Oct - 14 Oct	Volaris
11 Oct - 14 Oct	Volaris
07 Oct - 14 Oct	Aeromexico	direct
19 Oct - 09 Nov	Delta	direct
29 Oct - 04 Nov	Volaris
25 Oct - 01 Nov	Aeromexico	direct
31 Oct - 02 Nov	Volaris
30 Oct - 04 Nov	Volaris
30 Oct - 03 Nov	Volaris
31 Oct - 07 Nov	Volaris
31 Oct - 03 Nov	Volaris
28 Oct - 04 Nov	Frontier Airlines
25 Oct - 02 Nov	Volaris

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 $259

Return flights