Cheapest return flights from Washington to Dublin in September from 472€

Best time to book flights for Washington (IAD) to Dublin (DUB) flights at AirHint

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

Return flights

02 Sep - 09 Sep Scandinavian Airlines
03 Sep - 10 Sep Scandinavian Airlines
01 Sep - 08 Sep Icelandair
05 Sep - 12 Sep Icelandair
08 Sep - 15 Sep Icelandair
03 Sep - 10 Sep Aer Lingus direct
01 Sep - 08 Sep Aer Lingus direct
08 Sep - 15 Sep Aer Lingus direct
02 Sep - 09 Sep Aer Lingus direct
05 Sep - 12 Sep Aer Lingus direct
26 Sep - 03 Oct United direct

Also check the deals for one-way flights from Washington to Dublin 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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