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

Return flights

29 Jul - 20 Aug	Delta
28 Jul - 26 Aug	Delta
30 Jul - 06 Aug	Air France	direct
29 Jul - 06 Aug	Air France	direct
27 Jul - 07 Aug	Delta	direct
29 Jul - 08 Aug	Delta
29 Jul - 05 Aug	Delta
30 Jul - 12 Aug	Delta
31 Jul - 07 Aug	Delta
28 Jul - 04 Aug	Delta	direct
27 Jul - 30 Jul	Aer Lingus
28 Jul - 31 Jul	Aer Lingus
27 Jul - 30 Jul	Aer Lingus	direct
28 Jul - 31 Jul	Aer Lingus	direct

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 358€

Return flights