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

Return flights

30 Oct - 14 Nov	Iberia
28 Oct - 11 Nov	Volaris
14 Oct - 22 Oct	Volaris
13 Oct - 27 Oct	Viva
14 Oct - 23 Nov	SWISS
11 Oct - 24 Nov	Viva
12 Oct - 24 Nov	Volaris
14 Oct - 29 Oct	Volaris
21 Oct - 27 Oct	Volaris
08 Oct - 15 Oct	Volaris
29 Oct - 03 Nov	Aeromexico
11 Oct - 11 Nov	Viva
01 Oct - 08 Oct	Viva
16 Oct - 25 Oct	Volaris
15 Oct - 31 Oct	Viva
14 Oct - 02 Nov	Viva
07 Oct - 21 Oct	Volaris
07 Oct - 14 Oct	Volaris
31 Oct - 08 Nov	Volaris
15 Oct - 05 Nov	Viva

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 641€

Return flights