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

Return flights

05 Oct - 12 Oct	Aeromexico
05 Oct - 10 Oct	Aeromexico
11 Oct - 17 Oct	Viva
24 Oct - 01 Nov	Viva
11 Oct - 11 Nov	Iberia
07 Oct - 18 Oct	Iberia
07 Oct - 21 Oct	Viva
03 Oct - 12 Oct	Iberia
13 Oct - 17 Oct	Iberia
12 Oct - 15 Oct	Iberia
25 Oct - 01 Nov	Iberia
15 Oct - 20 Oct	Iberia
02 Oct - 10 Oct	Delta

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 $915

Return flights