AirHint found the following cheapest return flights from Boston (BOS) to Dublin (DUB) in July 2025 (see full year).

Return flights

15 Jul - 19 Aug	Air Canada
22 Jul - 06 Aug	Air France	direct
19 Jul - 26 Jul	Air Canada
30 Jul - 08 Aug	United
20 Jul - 26 Jul	jetBlue
23 Jul - 30 Jul	Air Canada
30 Jul - 06 Aug	United
22 Jul - 29 Jul	Air Canada
18 Jul - 07 Aug	Air Canada
18 Jul - 22 Jul	Air Canada
15 Jul - 22 Jul	Air Canada
29 Jul - 05 Aug	Aer Lingus	direct
24 Jul - 07 Aug	Air Canada
16 Jul - 24 Jul	SWISS
23 Jul - 28 Jul	Lufthansa
17 Jul - 21 Jul	Air Canada
17 Jul - 22 Jul	SWISS
24 Jul - 05 Aug	Lufthansa
31 Jul - 07 Aug	United
28 Jul - 04 Aug	United

Also check the deals for one-way flights from Boston to Dublin 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 Boston to Dublin in July from 317€

Return flights