Cheapest return flights from Dublin to Washington in December from $496

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

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

Return flights

22 Dec - 02 Jan British Airways
18 Dec - 26 Dec Delta
20 Dec - 31 Dec Icelandair
18 Dec - 26 Dec Aer Lingus direct
22 Dec - 02 Jan Aer Lingus direct
26 Dec - 30 Dec Icelandair
20 Dec - 31 Dec Aer Lingus direct

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