Cheapest one-way flights from Washington to Dublin in December from $203

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

One-Way flights

15 Dec Aer Lingus direct
12 Dec Aer Lingus direct
14 Dec Aer Lingus direct
28 Dec TAP
28 Dec Aer Lingus direct
26 Dec Aer Lingus direct
25 Dec United
23 Dec Air Canada
24 Dec Air Canada
25 Dec United direct

Also check the deals for return flights from Washington to Dublin in December.

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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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