Cheapest return flights from Washington to Dublin in December from $578

Best time to book flights for Washington (IAD) to Dublin (DUB) flights at AirHint

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

Return flights

06 Dec - 13 Dec Scandinavian Airlines
31 Dec - 07 Jan TAP
16 Dec - 23 Dec United direct
06 Dec - 13 Dec Aer Lingus direct
31 Dec - 07 Jan Aer Lingus direct
26 Dec - 02 Jan Icelandair
19 Dec - 03 Jan Icelandair
26 Dec - 02 Jan Aer Lingus direct
19 Dec - 03 Jan Aer Lingus direct

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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