Cheapest return flights from Washington to Frankfurt in September from 730€

Best time to book flights for Washington (IAD) to Frankfurt (FRA) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Frankfurt (FRA) in September 2025 (see full year).

Return flights

05 Sep - 12 Sep Icelandair
17 Sep - 29 Sep KLM
26 Sep - 04 Oct Icelandair
26 Sep - 03 Oct British Airways
19 Sep - 26 Sep British Airways
19 Sep - 03 Oct British Airways
05 Sep - 12 Sep Lufthansa direct
17 Sep - 29 Sep Lufthansa direct
25 Sep - 05 Oct Aer Lingus
26 Sep - 04 Oct Lufthansa direct

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

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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