Cheapest return flights from Washington to Dublin in December from 409€

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

Return flights

05 Dec - 12 Dec Air Canada
08 Dec - 15 Dec United
10 Dec - 17 Dec jetBlue
03 Dec - 07 Dec jetBlue
30 Dec - 06 Jan Delta
23 Dec - 30 Dec United
22 Dec - 29 Dec Air Canada
28 Dec - 04 Jan United
22 Dec - 30 Dec Air France
26 Dec - 04 Jan Air Canada
19 Dec - 26 Dec Air Canada
21 Dec - 28 Dec United
28 Dec - 02 Jan jetBlue
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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