Cheapest return flights from Boston to Dublin in September from 291€

AirHint found the following cheapest return flights from Boston (BOS) to Dublin (DUB) in September 2026 (see full year).

Return flights

09 Sep - 16 Sep jetBlue direct
06 Sep - 13 Sep Air Canada
08 Sep - 15 Sep Air Canada
12 Sep - 19 Sep Air Canada
03 Sep - 10 Sep Air Canada
07 Sep - 14 Sep Air Canada
11 Sep - 18 Sep Air Canada
02 Sep - 09 Sep Air Canada
10 Sep - 17 Sep Air Canada
06 Sep - 13 Sep Aer Lingus direct
26 Sep - 05 Oct Aer Lingus direct
25 Sep - 04 Oct Aer Lingus direct
25 Sep - 05 Oct Aer Lingus direct
27 Sep - 04 Oct Aer Lingus direct
28 Sep - 01 Oct Aer Lingus direct
28 Sep - 05 Oct Aer Lingus direct
29 Sep - 02 Oct Aer Lingus direct
29 Sep - 06 Oct Aer Lingus direct
30 Sep - 03 Oct Aer Lingus direct
24 Sep - 01 Oct Aer Lingus direct

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

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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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