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

Return flights

07 Sep - 15 Sep	Aer Lingus	direct
13 Sep - 19 Sep	Aer Lingus	direct
16 Sep - 24 Sep	jetBlue
06 Sep - 21 Sep	jetBlue
29 Sep - 06 Oct	Aer Lingus	direct
07 Sep - 13 Sep	jetBlue
15 Sep - 22 Sep	Aer Lingus	direct
27 Sep - 04 Oct	Aer Lingus	direct
07 Sep - 10 Sep	Frontier Airlines
07 Sep - 01 Oct	Aer Lingus	direct
02 Sep - 09 Sep	Aer Lingus
09 Sep - 16 Sep	United
07 Sep - 27 Sep	United
26 Sep - 02 Oct	Aer Lingus	direct
10 Sep - 04 Oct	United
10 Sep - 04 Oct	Aer Lingus	direct
24 Sep - 18 Oct	Lufthansa
25 Sep - 18 Oct	Aer Lingus	direct
24 Sep - 18 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 396€

Return flights