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

Return flights

08 Jun - 18 Jun	Porter Airlines (Canada) Ltd
01 Jun - 10 Jun	Porter Airlines (Canada) Ltd
02 Jun - 11 Jun	TAP
14 Jun - 30 Jun	Air Canada
12 Jun - 22 Jun	Icelandair
14 Jun - 21 Jun	Air Canada
10 Jun - 14 Jun	TAP
10 Jun - 24 Jun	Air Canada
17 Jun - 26 Jun	Icelandair
23 Jun - 03 Jul	Icelandair
08 Jun - 18 Jun	Aer Lingus	direct
15 Jun - 24 Jul	Aer Lingus	direct
16 Jun - 24 Jul	Aer Lingus	direct
27 Jun - 19 Jul	TAP
27 Jun - 04 Jul	Icelandair
23 Jun - 03 Jul	Aer Lingus	direct
27 Jun - 04 Jul	Aer Lingus	direct
27 Jun - 19 Jul	Aer Lingus	direct

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

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 June from $747

Return flights