AirHint found the following cheapest return flights from Guadalajara (GDL) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 10 May - 18 May | Viva | ||
| 11 May - 08 Jun | Viva | ||
| 29 May - 12 Jun | Volaris | ||
| 28 May - 15 Jun | Viva |
Also check the deals for one-way flights from Guadalajara to Lisbon in May.
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