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

Return flights

03 Mar - 08 Mar	TAP
19 Mar - 24 Mar	TAP
17 Mar - 25 Mar	TAP
03 Mar - 10 Mar	TAP
04 Mar - 11 Mar	Scandinavian Airlines
10 Mar - 17 Mar	TAP
11 Mar - 17 Mar	Scandinavian Airlines
31 Mar - 07 Apr	Icelandair
11 Mar - 16 Mar	Scandinavian Airlines
09 Mar - 16 Mar	TAP
24 Mar - 02 Apr	Scandinavian Airlines
22 Mar - 26 Mar	Icelandair
24 Mar - 02 Apr	Aer Lingus	direct
29 Mar - 07 Apr	Air Canada
25 Mar - 01 Apr	Aer Lingus	direct
31 Mar - 07 Apr	Aer Lingus	direct
31 Mar - 06 Apr	Air Canada
29 Mar - 07 Apr	Aer Lingus	direct
24 Mar - 08 Apr	Aer Lingus	direct
30 Mar - 06 Apr	Air Canada

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 $463

Return flights