Cheapest return flights from Chicago to Frankfurt in August from $663

Best time to book flights for Chicago (ORD) to Frankfurt (FRA) flights at AirHint

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

Return flights

25 Aug - 08 Sep Scandinavian Airlines
13 Aug - 10 Sep Aer Lingus
13 Aug - 03 Sep Aer Lingus
22 Aug - 05 Sep Aer Lingus
22 Aug - 29 Aug Lufthansa direct
22 Aug - 05 Sep Lufthansa direct
25 Aug - 08 Sep Lufthansa direct
12 Aug - 19 Aug Icelandair
12 Aug - 19 Aug Lufthansa direct
13 Aug - 10 Sep Lufthansa direct
13 Aug - 03 Sep Lufthansa direct
02 Aug - 09 Aug Lufthansa direct

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

Skyscanner

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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