AirHint found the following cheapest return flights from Chicago (MDW) to Berlin (BER) in August 2025 (see full year).

Return flights

09 Aug - 22 Aug	Delta
15 Aug - 03 Sep	Delta
15 Aug - 06 Sep	Delta
08 Aug - 12 Aug	Delta
08 Aug - 21 Aug	Delta
10 Aug - 25 Aug	Delta
26 Aug - 31 Aug	Delta
04 Aug - 12 Aug	Delta
25 Aug - 03 Sep	Virgin Atlantic
22 Aug - 31 Aug	Delta
27 Aug - 02 Sep	Delta
06 Aug - 10 Aug	Delta
28 Aug - 01 Sep	Delta
29 Aug - 06 Sep	Virgin Atlantic
13 Aug - 16 Aug	Frontier Airlines
11 Aug - 15 Aug	Delta

Also check the deals for one-way flights from Chicago to Berlin in August.

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 Berlin in August from 524€

Return flights