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

Return flights

21 Oct - 26 Nov	Iberia
28 Oct - 11 Nov	Iberia
09 Oct - 15 Oct	Arajet
12 Oct - 18 Nov	Iberia
03 Oct - 07 Oct	Volaris
01 Oct - 08 Oct	Viva
11 Oct - 11 Nov	Volaris
16 Oct - 20 Oct	Arajet
03 Oct - 22 Oct	Volaris
09 Oct - 20 Oct	Viva
22 Oct - 05 Nov	Iberia
14 Oct - 23 Nov	Volaris
02 Oct - 07 Oct	Viva
31 Oct - 08 Nov	Iberia
07 Oct - 21 Oct	Volaris
03 Oct - 12 Oct	Volaris
23 Oct - 02 Nov	Aeromexico
18 Oct - 25 Oct	Volaris

Also check the deals for one-way flights from Mexico City to Lisbon 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 Mexico City to Lisbon in October from $715

Return flights