AirHint found the following cheapest one-way flights from Athens (ATH) to Lisbon (LIS) in December 2025 (see full year).
One-Way flights
| 09 Dec | easyJet | ||
| 14 Dec | SKY express | direct | |
| 12 Dec | SKY express | direct | |
| 06 Dec | Ryanair | ||
| 03 Dec | SKY express | direct | |
| 11 Dec | easyJet | ||
| 06 Dec | Aegean Airlines | direct | |
| 01 Dec | easyJet | ||
| 18 Dec | Ryanair | ||
| 02 Dec | Ryanair |
Also check the deals for return flights from Athens to Lisbon in December.
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