Cheapest return flights from Washington to Dublin in September from 518€

Best time to book flights for Washington (DCA) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Washington (DCA) to Dublin (DUB) in September 2025 (see full year).

Return flights

23 Sep - 30 Sep jetBlue
24 Sep - 01 Oct jetBlue
26 Sep - 03 Oct jetBlue
25 Sep - 02 Oct jetBlue
22 Sep - 29 Sep jetBlue
28 Sep - 05 Oct jetBlue
21 Sep - 28 Sep jetBlue
27 Sep - 04 Oct jetBlue
01 Sep - 08 Sep Air Canada
11 Sep - 15 Sep Air Canada

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

Skyscanner

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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