AirHint found the following cheapest return flights from Chicago (MDW) to Warsaw (WAW) in July 2025 (see full year).

Return flights

08 Jul - 15 Jul	Air France
28 Jul - 14 Aug	Frontier Airlines
09 Jul - 19 Jul	Delta
10 Jul - 19 Jul	Delta
16 Jul - 22 Jul	Delta
11 Jul - 27 Jul	Delta
26 Jul - 15 Aug	Delta
15 Jul - 24 Jul	Delta
15 Jul - 21 Jul	Porter Airlines (Canada) Ltd
16 Jul - 06 Aug	Delta
11 Jul - 25 Jul	Frontier Airlines
20 Jul - 29 Jul	Delta
10 Jul - 25 Jul	Delta
23 Jul - 06 Aug	Delta
26 Jul - 10 Aug	Delta
12 Jul - 04 Aug	Delta
20 Jul - 03 Aug	Delta

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

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 Chicago to Warsaw in July from 772€

Return flights