Cheapest one-way flights from Washington to Dublin in January from 221€

AirHint found the following cheapest one-way flights from Washington (IAD) to Dublin (DUB) in January 2026 (see full year).

One-Way flights

15 Jan Frontier Airlines
08 Jan Frontier Airlines
03 Jan SWISS
15 Jan Aer Lingus direct
03 Jan United direct
08 Jan Aer Lingus direct

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

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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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