AirHint found the following cheapest return flights from Phoenix (PHX) to Mexico City (MEX) in January 2026 (see full year).

Return flights

23 Jan - 28 Jan	Frontier Airlines
18 Jan - 25 Jan	Frontier Airlines
21 Jan - 25 Jan	Frontier Airlines
21 Jan - 26 Jan	Frontier Airlines
22 Jan - 26 Jan	Frontier Airlines
08 Jan - 15 Jan	Frontier Airlines
08 Jan - 12 Jan	Volaris
16 Jan - 20 Jan	Frontier Airlines
26 Jan - 02 Feb	Frontier Airlines
16 Jan - 19 Jan	Frontier Airlines
15 Jan - 22 Jan	Frontier Airlines
28 Jan - 04 Feb	Frontier Airlines
26 Jan - 02 Feb	Delta	direct
28 Jan - 04 Feb	Delta	direct
01 Jan - 01 Feb	Frontier Airlines

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

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.

Book a cheap hotel in Mexico City

Cheap car rent in Mexico City

Cheapest return flights from Phoenix to Mexico City in January from 208€

Return flights