Cheapest return flights from Washington to Frankfurt in September from 697€

AirHint found the following cheapest return flights from Washington (IAD) to Frankfurt (FRA) in September 2026 (see full year).

Return flights

16 Sep - 23 Sep Turkish Airlines
16 Sep - 25 Sep Turkish Airlines
11 Sep - 25 Sep Turkish Airlines
08 Sep - 22 Sep Aer Lingus
04 Sep - 07 Sep Turkish Airlines
04 Sep - 03 Oct Aer Lingus
23 Sep - 03 Oct Aer Lingus
08 Sep - 22 Sep Lufthansa direct
16 Sep - 23 Sep Lufthansa direct
16 Sep - 25 Sep Lufthansa direct
11 Sep - 25 Sep Lufthansa direct
04 Sep - 03 Oct Lufthansa direct
04 Sep - 07 Sep Lufthansa direct

Also check the deals for one-way flights from Washington to Frankfurt in September.

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