AirHint found the following cheapest return flights from Washington (IAD) to Dublin (DUB)
in May 2025 (see full year ).
Return flights
12 May
- 19 May
Icelandair
$ 553
08 May
- 22 May
Icelandair
$ 557
07 May
- 15 May
TAP
$ 561
08 May
- 15 May
TAP
$ 594
08 May
- 22 May
Aer Lingus
$ 632
direct
13 May
- 16 May
Icelandair
$ 633
07 May
- 14 May
TAP
$ 641
07 May
- 15 May
Aer Lingus
$ 643
direct
13 May
- 16 May
Aer Lingus
$ 643
direct
05 May
- 13 May
TAP
$ 646
29 May
- 05 Jun
Aer Lingus
$ 679
direct
29 May
- 03 Jun
Air Canada
$ 744
28 May
- 02 Jun
Air Canada
$ 746
27 May
- 04 Jun
Aer Lingus
$ 750
direct
30 May
- 03 Jun
Porter Airlines (Canada) Ltd
$ 756
30 May
- 06 Jun
Aer Lingus
$ 759
direct
28 May
- 01 Jun
Air Canada
$ 765
25 May
- 02 Jun
Aer Lingus
$ 769
direct
30 May
- 07 Jun
Porter Airlines (Canada) Ltd
$ 788
27 May
- 03 Jun
Aer Lingus
$ 789
direct
Also check the deals for one-way flights from Washington to Dublin in May .
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.
