Cheapest return flights from Washington to Warsaw in December from $441

AirHint found the following cheapest return flights from Washington (IAD) to Warsaw (WAW) in December 2025 (see full year).

Return flights

07 Dec - 12 Dec Lufthansa
08 Dec - 15 Dec SWISS
02 Dec - 09 Dec Air France
01 Dec - 07 Dec Lufthansa
14 Dec - 08 Jan SWISS
14 Dec - 17 Jan Lufthansa
14 Dec - 11 Jan SWISS
25 Dec - 10 Jan Lufthansa
24 Dec - 10 Jan SWISS
02 Dec - 03 Dec TAP
15 Dec - 06 Jan SWISS
23 Dec - 30 Dec SWISS
28 Dec - 03 Jan TAP
16 Dec - 02 Jan Aer Lingus
15 Dec - 02 Jan Aer Lingus
17 Dec - 02 Jan Aer Lingus

Also check the deals for one-way flights from Washington to Warsaw in December.

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