Cheapest return ORD–WAW flights, May

AirHint found the following cheapest return flights from Chicago (ORD) to Warsaw (WAW) in May 2026 (see full year).

Return flights

10 May - 02 Jun SWISS
11 May - 05 Jun SWISS
09 May - 22 May Lufthansa
13 May - 03 Jun SWISS
13 May - 29 May SWISS
11 May - 18 May Air France
13 May - 20 May United
13 May - 18 May KLM
12 May - 17 Jun Delta
10 May - 17 May SWISS
09 May - 16 May Air France
14 May - 21 May SWISS
25 May - 05 Jun SWISS
25 May - 09 Jun SWISS
13 May - 22 Jun KLM
24 May - 01 Jun Lufthansa
13 May - 26 Jun KLM
26 May - 08 Jun Air France
15 May - 22 May Lufthansa
17 May - 31 May KLM

Also check the deals for one-way flights from Chicago to Warsaw in May.

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