Cheapest return flights from Washington to Dublin in May from $447

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 May 2025 (see full year).

Return flights

28 May - 18 Jun Icelandair
30 May - 18 Jun Icelandair
25 May - 03 Jun Aer Lingus direct
27 May - 03 Jun Air Canada
26 May - 09 Jun SWISS
28 May - 04 Jun Icelandair
30 May - 06 Jun Icelandair
20 May - 26 May Air Canada
28 May - 03 Jun SWISS
14 May - 20 May British Airways
18 May - 26 May British Airways
19 May - 29 May British Airways
14 May - 19 May SWISS
12 May - 21 May Aer Lingus direct
14 May - 21 May British Airways
29 May - 12 Jun SWISS
30 May - 06 Jun Aer Lingus direct
14 May - 20 May United direct
19 May - 29 May United direct
13 May - 20 May British Airways

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

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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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