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

Return flights

11 Mar - 18 Mar	Scandinavian Airlines
03 Mar - 17 Mar	Icelandair
10 Mar - 18 Mar	Icelandair
04 Mar - 11 Mar	Icelandair
14 Mar - 21 Mar	Icelandair
03 Mar - 17 Mar	United	direct
30 Mar - 13 Apr	Icelandair
04 Mar - 11 Mar	Aer Lingus	direct
30 Mar - 13 Apr	Aer Lingus	direct
10 Mar - 18 Mar	Aer Lingus	direct
11 Mar - 18 Mar	Aer Lingus	direct
14 Mar - 21 Mar	Aer Lingus	direct

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

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 March from 436€

Return flights