AirHint found the following cheapest return flights from Washington (IAD) to Dublin (DUB) in April 2026 (see full year).

Return flights

06 Apr - 13 Apr	Aer Lingus	direct
16 Apr - 23 Apr	Aer Lingus	direct
27 Apr - 23 May	Scandinavian Airlines
26 Apr - 03 May	Aer Lingus	direct
16 Apr - 09 May	Scandinavian Airlines
16 Apr - 09 May	Aer Lingus	direct
27 Apr - 23 May	United	direct

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

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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Cheapest return flights from Washington to Dublin in April from $481

Return flights