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

Return flights

03 Sep - 10 Sep	United
09 Sep - 16 Sep	United
09 Sep - 16 Sep	Aer Lingus	direct
03 Sep - 10 Sep	Aer Lingus	direct
11 Sep - 18 Sep	Aer Lingus	direct
07 Sep - 14 Sep	Aer Lingus	direct
30 Sep - 07 Oct	United
05 Sep - 12 Sep	United
01 Sep - 08 Sep	United
15 Sep - 22 Sep	Aer Lingus	direct
01 Sep - 08 Sep	Aer Lingus	direct
24 Sep - 01 Oct	Aer Lingus	direct
27 Sep - 04 Oct	United
27 Sep - 04 Oct	Aer Lingus	direct

Also check the deals for one-way flights from Windsor Locks 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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Cheapest return flights from Windsor Locks to Dublin in September from 449€

Return flights