Cheapest return flights from Chicago to Frankfurt in August from $671

AirHint found the following cheapest return flights from Chicago (ORD) to Frankfurt (FRA) in August 2026 (see full year).

Return flights

18 Aug - 26 Aug Aer Lingus
30 Aug - 13 Sep Turkish Airlines
03 Aug - 19 Aug Aer Lingus
03 Aug - 17 Aug Aer Lingus
24 Aug - 31 Aug Icelandair
04 Aug - 11 Aug Lufthansa direct
19 Aug - 26 Aug Lufthansa direct
18 Aug - 26 Aug Lufthansa direct
03 Aug - 19 Aug Lufthansa direct
14 Aug - 21 Aug Lufthansa direct
09 Aug - 16 Aug Lufthansa direct
30 Aug - 13 Sep Lufthansa direct
29 Aug - 05 Sep jetBlue
29 Aug - 05 Sep Lufthansa direct

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

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