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

Return flights

25 Aug - 09 Sep	Aeromexico
31 Aug - 08 Sep	Volaris
27 Aug - 04 Sep	Viva
27 Aug - 07 Sep	Viva
10 Aug - 28 Aug	Volaris
31 Aug - 06 Sep	Volaris
27 Aug - 10 Sep	Viva
24 Aug - 30 Aug	Viva
20 Aug - 30 Aug	Volaris
23 Aug - 31 Aug	Volaris
20 Aug - 20 Sep	Volaris
27 Aug - 11 Sep	Volaris
22 Aug - 17 Sep	Iberia
23 Aug - 30 Aug	Volaris
23 Aug - 01 Sep	Volaris
13 Aug - 26 Aug	Volaris
05 Aug - 30 Aug	Aeromexico
14 Aug - 23 Aug	Volaris
10 Aug - 14 Aug	Volaris
05 Aug - 16 Aug	Aeromexico

Also check the deals for one-way flights from Mexico City to Lisbon in August.

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 August from $845

Return flights