Cheapest return flights from Washington to Dublin in December from $517

AirHint found the following cheapest return flights from Washington (DCA) to Dublin (DUB) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec United
11 Dec - 18 Dec United
31 Dec - 07 Jan United
28 Dec - 05 Jan Air Canada
06 Dec - 11 Dec jetBlue
21 Dec - 04 Jan Air Canada
20 Dec - 04 Jan Air Canada
27 Dec - 03 Jan Air Canada
07 Dec - 20 Dec Icelandair
28 Dec - 02 Jan Air Canada
19 Dec - 04 Jan Air Canada

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

Skyscanner

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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