Cheapest return flights from Washington to Gdansk in September from $431

AirHint found the following cheapest return flights from Washington (IAD) to Gdansk (GDN) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep Scandinavian Airlines
02 Sep - 09 Sep Lufthansa
09 Sep - 16 Sep Lufthansa
11 Sep - 18 Sep Lufthansa
30 Sep - 07 Oct Lufthansa
23 Sep - 30 Sep Lufthansa
07 Sep - 14 Sep Lufthansa
08 Sep - 15 Sep Lufthansa
25 Sep - 02 Oct Lufthansa
29 Sep - 06 Oct Lufthansa
01 Sep - 08 Sep Lufthansa
06 Sep - 13 Sep Lufthansa
13 Sep - 20 Sep Lufthansa
28 Sep - 05 Oct Lufthansa
27 Sep - 04 Oct Lufthansa
26 Sep - 03 Oct Lufthansa
24 Sep - 01 Oct Lufthansa

Also check the deals for one-way flights from Washington to Gdansk in September.

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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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