Cheapest one-way IAD–DUB flights, May

AirHint found the following cheapest one-way flights from Washington (IAD) to Dublin (DUB) in May 2026 (see full year).

One-Way flights

29 May Porter Airlines (Canada) Ltd
18 May Air France
12 May Air France
13 May Icelandair
10 May TAP
20 May Porter Airlines (Canada) Ltd
15 May Air France
16 May Air France
12 May Aer Lingus direct
13 May United direct

Also check the deals for return 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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