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

Return flights

23 Jul - 04 Aug	TAP
11 Jul - 18 Jul	Icelandair
13 Jul - 27 Jul	Icelandair
01 Jul - 08 Jul	Icelandair
01 Jul - 15 Jul	Icelandair
01 Jul - 06 Jul	Icelandair
01 Jul - 09 Jul	Aer Lingus
18 Jul - 25 Jul	Aer Lingus	direct
13 Jul - 27 Jul	Aer Lingus	direct
02 Jul - 20 Jul	Aer Lingus	direct
29 Jul - 05 Aug	Delta
21 Jul - 05 Aug	Aer Lingus
25 Jul - 01 Aug	Aer Lingus
25 Jul - 08 Aug	Delta
25 Jul - 08 Aug	Aer Lingus	direct
01 Jul - 15 Jul	Iberia	direct

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

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 July from $720

Return flights