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

Return flights

01 Apr - 08 Apr	American Airlines
08 Apr - 15 Apr	American Airlines
14 Apr - 21 Apr	American Airlines
15 Apr - 22 Apr	American Airlines
01 Apr - 10 Apr	American Airlines
28 Apr - 05 May	American Airlines
29 Apr - 06 May	American Airlines
27 Apr - 05 May	Air France
07 Apr - 15 Apr	KLM
14 Apr - 22 Apr	Delta
27 Apr - 04 May	American Airlines
30 Apr - 07 May	American Airlines
16 Apr - 23 Apr	American Airlines
17 Apr - 24 Apr	American Airlines
03 Apr - 07 Apr	Delta
30 Apr - 04 May	Iberia
28 Apr - 14 May	Delta
29 Apr - 14 May	Iberia

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 343€

Return flights