Cheapest return flights from Boston to Dublin in September from 431€

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

Return flights

08 Sep - 15 Sep Aer Lingus direct
03 Sep - 07 Sep Aer Lingus direct
05 Sep - 16 Sep Aer Lingus direct
17 Sep - 24 Sep Aer Lingus direct
22 Sep - 01 Oct Aer Lingus direct
15 Sep - 20 Sep Aer Lingus direct
23 Sep - 28 Sep Aer Lingus direct
22 Sep - 28 Sep Aer Lingus direct
02 Sep - 11 Sep Aer Lingus direct
30 Sep - 07 Oct Scandinavian Airlines
27 Sep - 14 Oct Aer Lingus direct
30 Sep - 07 Oct Aer Lingus direct
23 Sep - 01 Oct Aer Lingus direct
24 Sep - 01 Oct Aer Lingus direct
30 Sep - 11 Oct Aer Lingus direct
29 Sep - 07 Oct Aer Lingus direct
25 Sep - 04 Oct Aer Lingus direct
29 Sep - 03 Oct Aer Lingus direct
13 Sep - 25 Sep Delta 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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