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

Return flights

27 Aug - 10 Sep	Scandinavian Airlines
15 Aug - 29 Aug	Lufthansa
27 Aug - 10 Sep	Aer Lingus	direct
09 Aug - 18 Aug	TAP
10 Aug - 17 Aug	TAP
07 Aug - 17 Aug	TAP
15 Aug - 22 Aug	Lufthansa
13 Aug - 20 Aug	Lufthansa
15 Aug - 29 Aug	Aer Lingus	direct
13 Aug - 20 Aug	Aer Lingus	direct
09 Aug - 18 Aug	Aer Lingus	direct
15 Aug - 22 Aug	Aer Lingus	direct

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 415€

Return flights