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

Return flights

09 Jun - 16 Jun	Air Canada
08 Jun - 15 Jun	Air Canada
10 Jun - 17 Jun	Air Canada
10 Jun - 14 Jun	Air Canada
14 Jun - 21 Jun	Air Canada
11 Jun - 15 Jun	Air Canada
16 Jun - 30 Jun	Air Canada
24 Jun - 03 Jul	Air Canada
17 Jun - 17 Jul	Air Canada
21 Jun - 11 Jul	Air Canada
23 Jun - 29 Jun	Air Canada
22 Jun - 28 Jun	Air Canada
23 Jun - 28 Jun	Air Canada
30 Jun - 05 Jul	Air Canada
18 Jun - 05 Jul	Air Canada
30 Jun - 04 Jul	WestJet

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 708€

Return flights