Cheapest return flights from Washington (IAD) to Dublin (DUB), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
07 Sep 15 Sep Porter Airlines (Canada) Ltd
03 Sep 09 Sep Porter Airlines (Canada) Ltd
17 Sep 24 Sep Icelandair
02 Sep 09 Sep Porter Airlines (Canada) Ltd
08 Sep 15 Sep Icelandair
06 Sep 14 Sep Porter Airlines (Canada) Ltd
14 Sep 21 Sep Air Canada
30 Sep 09 Oct Scandinavian Airlines
01 Sep 16 Sep Porter Airlines (Canada) Ltd
06 Sep 16 Sep Porter Airlines (Canada) Ltd
26 Sep 03 Oct Air Canada
23 Sep 30 Sep Scandinavian Airlines
29 Sep 06 Oct Turkish Airlines
13 Sep 03 Oct Porter Airlines (Canada) Ltd
24 Sep 10 Oct TAP
29 Sep 06 Oct Aer Lingus
Direct Flight
30 Sep 09 Oct Aer Lingus
Direct Flight
22 Sep 20 Oct British Airways
13 Sep 03 Oct Aer Lingus
Direct Flight
24 Sep 10 Oct Aer Lingus
Direct Flight
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deals for one-way flights from Washington to Dublin in September.

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Updated Jun 2, 2026.

About these fares

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