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

Return flights

01 May - 09 May	Icelandair
14 May - 25 May	Icelandair
07 May - 31 May	Icelandair
18 May - 01 Jun	Icelandair
05 May - 21 May	Icelandair
21 May - 04 Jun	Scandinavian Airlines
06 May - 13 May	Lufthansa
06 May - 13 May	Lufthansa	direct
01 May - 09 May	Lufthansa	direct
05 May - 26 May	Lufthansa	direct
05 May - 21 May	Lufthansa	direct
07 May - 31 May	Lufthansa	direct
18 May - 01 Jun	Lufthansa	direct
21 May - 04 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 451€

Return flights