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

Return flights

25 Aug - 30 Aug	Lufthansa
27 Aug - 08 Sep	Delta
29 Aug - 05 Sep	Aer Lingus	direct
25 Aug - 30 Aug	Air France	direct
05 Aug - 26 Aug	Scandinavian Airlines
30 Aug - 06 Sep	Aer Lingus	direct
05 Aug - 09 Aug	Lufthansa
05 Aug - 10 Aug	Lufthansa
18 Aug - 02 Sep	Lufthansa
17 Aug - 31 Aug	WestJet
19 Aug - 22 Aug	TAP
03 Aug - 19 Aug	TAP
01 Aug - 13 Aug	TAP
01 Aug - 14 Aug	TAP
28 Aug - 04 Sep	Aer Lingus
25 Aug - 01 Sep	Aer Lingus	direct
26 Aug - 02 Sep	Aer Lingus	direct
31 Aug - 03 Sep	Aer Lingus
18 Aug - 02 Sep	Aer Lingus	direct
30 Aug - 02 Sep	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 $590

Return flights