Cheapest one-way flights from Chicago to Frankfurt in September from $369

AirHint found the following cheapest one-way flights from Chicago (ORD) to Frankfurt (FRA) in September 2026 (see full year).

One-Way flights

30 Sep KLM
26 Sep Air Serbia
29 Sep Aer Lingus
30 Sep Lufthansa direct
29 Sep United direct
26 Sep United direct

Also check the deals for return flights from Chicago to Frankfurt in September.

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