Cheapest return flights from Chicago to Athens in December from 474€

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

Return flights

11 Dec - 16 Dec SWISS
02 Dec - 10 Dec Lufthansa
02 Dec - 09 Dec Lufthansa
01 Dec - 08 Dec SWISS
11 Dec - 14 Dec Iberia
29 Dec - 12 Jan KLM
06 Dec - 08 Dec Air Serbia
02 Dec - 06 Dec Spirit Airlines
01 Dec - 04 Dec Scandinavian Airlines
15 Dec - 22 Dec Iberia
12 Dec - 19 Dec Frontier Airlines
26 Dec - 31 Jan LOT
21 Dec - 14 Jan Frontier Airlines
14 Dec - 05 Jan Spirit Airlines
26 Dec - 06 Jan LOT
27 Dec - 07 Jan Air Serbia
18 Dec - 12 Jan Spirit Airlines
17 Dec - 11 Jan Frontier Airlines
17 Dec - 10 Jan Frontier Airlines
26 Dec - 07 Jan LOT

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

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