Cheapest return flights from Washington to Dublin in September from 353€

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

Return flights

15 Sep - 18 Sep Aer Lingus direct
19 Sep - 25 Sep Aer Lingus direct
18 Sep - 25 Sep Aer Lingus direct
21 Sep - 28 Sep Aer Lingus direct
11 Sep - 18 Sep Aer Lingus direct
15 Sep - 22 Sep Aer Lingus direct
16 Sep - 07 Oct Aer Lingus direct
22 Sep - 27 Sep Scandinavian Airlines
29 Sep - 06 Oct Scandinavian Airlines
20 Sep - 27 Sep Scandinavian Airlines
20 Sep - 28 Sep Scandinavian Airlines
03 Sep - 27 Sep Scandinavian Airlines
16 Sep - 11 Oct Scandinavian Airlines
15 Sep - 11 Oct Scandinavian Airlines
23 Sep - 07 Oct Scandinavian Airlines
25 Sep - 04 Oct Scandinavian Airlines
26 Sep - 18 Oct Scandinavian Airlines
16 Sep - 11 Oct Aer Lingus direct
28 Sep - 05 Oct Aer Lingus direct
29 Sep - 06 Oct Aer Lingus 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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