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

Return flights

24 Aug - 08 Sep	Scandinavian Airlines
25 Aug - 08 Sep	Scandinavian Airlines
25 Aug - 09 Sep	Lufthansa
25 Aug - 10 Sep	Lufthansa
21 Aug - 08 Sep	Scandinavian Airlines
09 Aug - 19 Aug	TAP
23 Aug - 08 Sep	SWISS
19 Aug - 26 Aug	TAP
22 Aug - 29 Aug	SWISS
20 Aug - 25 Aug	Scandinavian Airlines
04 Aug - 12 Aug	Lufthansa
22 Aug - 31 Aug	Lufthansa
22 Aug - 08 Sep	Lufthansa
01 Aug - 15 Aug	TAP
28 Aug - 04 Sep	Aer Lingus
01 Aug - 22 Aug	TAP
28 Aug - 31 Aug	Aer Lingus	direct
01 Aug - 14 Aug	TAP
29 Aug - 05 Sep	Aer Lingus
30 Aug - 06 Sep	Aer Lingus

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

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 Dublin to Boston in August from 429€

Return flights