AirHint found the following cheapest return flights from Washington (IAD) to Hahn (HHN) in August 2025 (see full year).

Return flights

10 Aug - 27 Aug	Frontier Airlines
24 Aug - 03 Sep	Scandinavian Airlines
03 Aug - 24 Aug	Frontier Airlines
24 Aug - 01 Sep	Icelandair
17 Aug - 24 Aug	TAP
10 Aug - 17 Aug	Frontier Airlines
25 Aug - 29 Aug	Icelandair
19 Aug - 30 Aug	TAP
22 Aug - 29 Aug	Air Canada
10 Aug - 19 Aug	Air Canada
08 Aug - 15 Aug	Air Canada
05 Aug - 11 Aug	Icelandair
11 Aug - 10 Sep	TAP
27 Aug - 01 Sep	Icelandair
28 Aug - 01 Sep	Icelandair
25 Aug - 08 Sep	Icelandair
28 Aug - 11 Sep	Icelandair
22 Aug - 05 Sep	Icelandair

Also check the deals for one-way flights from Washington to Hahn in August.

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 Hahn in August from $599

Return flights