AirHint found the following cheapest return flights from Mexico City (MEX) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 13 May - 27 May | British Airways | ||
| 08 May - 18 May | Avianca | ||
| 26 May - 02 Jun | Iberia | ||
| 27 May - 01 Jun | Air France | ||
| 25 May - 13 Jun | Aer Lingus | ||
| 28 May - 02 Jun | Iberia | ||
| 28 May - 31 May | Iberia |
Also check the deals for one-way flights from Mexico City to Lisbon in May.
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