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

Return flights

08 May - 23 May	Scandinavian Airlines
08 May - 22 May	Scandinavian Airlines
10 May - 24 May	Scandinavian Airlines
13 May - 27 May	Scandinavian Airlines
21 May - 11 Jun	Scandinavian Airlines
05 May - 21 May	Turkish Airlines
13 May - 23 May	Scandinavian Airlines
07 May - 22 May	Turkish Airlines
05 May - 26 May	Turkish Airlines
20 May - 02 Jun	Icelandair
05 May - 19 May	United
13 May - 19 May	United
20 May - 02 Jun	Lufthansa	direct
21 May - 11 Jun	Lufthansa	direct

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

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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Cheapest return flights from Washington to Frankfurt in May from 558€

Return flights