Cheapest return flights from Washington to Dublin in September from $481
AirHint found the following cheapest return flights from Washington (IAD) to Dublin (DUB)
in September 2025 (see full year ).
Return flights
21 Sep
- 26 Sep
Scandinavian Airlines
$ 481
29 Sep
- 06 Oct
Scandinavian Airlines
$ 509
30 Sep
- 07 Oct
Scandinavian Airlines
$ 509
25 Sep
- 06 Oct
Scandinavian Airlines
$ 510
16 Sep
- 07 Oct
Scandinavian Airlines
$ 516
15 Sep
- 18 Sep
Scandinavian Airlines
$ 517
25 Sep
- 02 Oct
Scandinavian Airlines
$ 530
13 Sep
- 26 Sep
Scandinavian Airlines
$ 532
11 Sep
- 04 Oct
Scandinavian Airlines
$ 532
27 Sep
- 18 Oct
Scandinavian Airlines
$ 536
25 Sep
- 30 Sep
Scandinavian Airlines
$ 540
26 Sep
- 18 Oct
Scandinavian Airlines
$ 543
26 Sep
- 03 Oct
Scandinavian Airlines
$ 547
30 Sep
- 13 Oct
Air Canada
$ 548
06 Sep
- 12 Sep
Scandinavian Airlines
$ 558
11 Sep
- 16 Sep
Aer Lingus
$ 572
direct
06 Sep
- 13 Sep
Scandinavian Airlines
$ 595
24 Sep
- 30 Sep
TAP
$ 604
13 Sep
- 21 Sep
Aer Lingus
$ 605
direct
06 Sep
- 13 Sep
Aer Lingus
$ 611
direct
Also check the deals for one-way flights from Washington to Dublin in September .
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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