AirHint found the following cheapest return flights from Athens (ATH) to Bangkok (BKK) in December 2025 (see full year).

Return flights

08 Dec - 31 Dec	Gulf Air
03 Dec - 13 Dec	Gulf Air
06 Dec - 13 Dec	Gulf Air
05 Dec - 13 Dec	Gulf Air
10 Dec - 24 Dec	Pegasus Airlines
08 Dec - 18 Dec	Gulf Air
04 Dec - 15 Dec	Gulf Air
07 Dec - 18 Dec	Gulf Air
04 Dec - 10 Dec	Gulf Air
29 Dec - 14 Jan	Air China
05 Dec - 15 Dec	Gulf Air
26 Dec - 07 Jan	Air China
30 Dec - 31 Jan	Pegasus Airlines
14 Dec - 12 Jan	Aegean Airlines
30 Dec - 18 Jan	Pegasus Airlines
31 Dec - 13 Jan	Aegean Airlines
29 Dec - 29 Jan	Pegasus Airlines
28 Dec - 18 Jan	Pegasus Airlines
17 Dec - 11 Jan	SKY express
08 Dec - 12 Jan	Gulf Air

Also check the deals for one-way flights from Athens to Bangkok in December.

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 Athens to Bangkok in December from 442€

Return flights