AirHint found the following cheapest return flights from Athens (ATH) to Barcelona (BCN) in December 2026 (see full year).
Return flights
| 03 Dec - 08 Dec | easyJet | ||
| 08 Dec - 11 Dec | easyJet | ||
| 04 Dec - 07 Dec | KLM | ||
| 04 Dec - 05 Jan | LOT | ||
| 29 Dec - 01 Jan | ITA Airways | ||
| 26 Dec - 30 Dec | LOT | ||
| 27 Dec - 02 Jan | Lufthansa |
Also check the deals for one-way flights from Athens to Barcelona in December.
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