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

Return flights

17 Aug - 24 Aug	Icelandair
17 Aug - 26 Aug	Icelandair
04 Aug - 19 Aug	Icelandair
11 Aug - 20 Aug	TAP
13 Aug - 19 Aug	British Airways
07 Aug - 23 Aug	Icelandair
22 Aug - 31 Aug	TAP
27 Aug - 03 Sep	Aer Lingus
13 Aug - 06 Sep	Spirit Airlines
02 Aug - 02 Sep	Icelandair
01 Aug - 08 Aug	Icelandair

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.

Book a cheap hotel in Berlin

Cheap car rent in Berlin

Cheapest return flights from Chicago to Berlin in August from $507

Return flights