Cheapest return flights from Washington to Dublin in August from $453

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

Return flights

18 Aug - 25 Aug TAP
25 Aug - 07 Sep TAP
12 Aug - 20 Aug Aer Lingus direct
10 Aug - 21 Aug Air Canada
18 Aug - 26 Aug Aer Lingus direct
12 Aug - 26 Aug Aer Lingus direct
10 Aug - 22 Aug Aer Lingus direct
10 Aug - 21 Aug Aer Lingus direct
19 Aug - 26 Aug Aer Lingus direct
13 Aug - 20 Aug Aer Lingus direct
18 Aug - 21 Aug Aer Lingus direct
31 Aug - 07 Sep Scandinavian Airlines
31 Aug - 06 Sep Scandinavian Airlines
26 Aug - 02 Sep Aer Lingus direct
27 Aug - 01 Sep Air Canada
27 Aug - 02 Sep Air Canada
27 Aug - 02 Sep Aer Lingus direct
26 Aug - 09 Sep Aer Lingus direct
22 Aug - 05 Sep Scandinavian Airlines
30 Aug - 07 Sep Scandinavian Airlines

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

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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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