AirHint found the following cheapest return flights from Washington (DCA) to Dublin (DUB) in January 2026 (see full year).

Return flights

16 Jan - 19 Jan	jetBlue
04 Jan - 24 Jan	KLM
08 Jan - 12 Jan	United
07 Jan - 31 Jan	Air Canada
15 Jan - 19 Jan	United
11 Jan - 15 Jan	Icelandair
07 Jan - 14 Jan	jetBlue
13 Jan - 20 Jan	jetBlue
28 Jan - 04 Feb	jetBlue
19 Jan - 26 Jan	jetBlue
22 Jan - 29 Jan	jetBlue
25 Jan - 01 Feb	jetBlue
31 Jan - 07 Feb	jetBlue

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

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Washington to Dublin in January from 457€

Return flights