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

Return flights

31 Oct - 08 Nov	SWISS
30 Oct - 13 Nov	SWISS
31 Oct - 09 Nov	Aer Lingus	direct
28 Oct - 14 Nov	Lufthansa
30 Oct - 08 Nov	SWISS
31 Oct - 13 Nov	Austrian Airlines
30 Oct - 09 Nov	SWISS
22 Oct - 19 Nov	Delta
23 Oct - 09 Nov	Delta
28 Oct - 04 Nov	Delta
23 Oct - 30 Oct	Delta
22 Oct - 30 Oct	KLM
22 Oct - 30 Oct	Air France	direct
22 Oct - 29 Oct	United
23 Oct - 31 Oct	United
22 Oct - 27 Oct	Delta
23 Oct - 26 Oct	Delta
23 Oct - 27 Oct	Delta
23 Oct - 28 Oct	Delta
20 Oct - 24 Oct	Scandinavian Airlines

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

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 October from 341€

Return flights