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

Return flights

23 Feb - 04 Mar	KLM
22 Feb - 03 Mar	KLM
18 Feb - 25 Feb	American Airlines
18 Feb - 24 Feb	American Airlines
26 Feb - 03 Mar	jetBlue
26 Feb - 02 Mar	jetBlue
25 Feb - 02 Mar	jetBlue
26 Feb - 04 Mar	Air Canada
26 Feb - 06 Mar	Air Canada
27 Feb - 06 Mar	Air Canada
25 Feb - 01 Mar	KLM
23 Feb - 02 Mar	British Airways
19 Feb - 23 Feb	Air Canada
20 Feb - 23 Feb	Air Canada
19 Feb - 22 Feb	United
22 Feb - 28 Feb	British Airways
24 Feb - 27 Feb	British Airways
15 Feb - 22 Feb	jetBlue
11 Feb - 15 Feb	jetBlue
11 Feb - 14 Feb	jetBlue

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

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 February from $592

Return flights