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

Return flights

14 Oct - 19 Oct	Vueling Airlines
08 Oct - 15 Oct	Vueling Airlines
13 Oct - 19 Oct	Vueling Airlines
29 Oct - 02 Nov	Icelandair
23 Oct - 30 Oct	TAP
22 Oct - 02 Nov	TAP
22 Oct - 27 Oct	Vueling Airlines
01 Oct - 16 Oct	Ryanair
23 Oct - 01 Nov	TAP
31 Oct - 02 Nov	Icelandair
22 Oct - 01 Nov	TAP
23 Oct - 27 Oct	Ryanair
13 Oct - 18 Oct	Icelandair
29 Oct - 04 Nov	TAP
29 Oct - 05 Nov	TAP
30 Oct - 03 Nov	Ryanair
20 Oct - 27 Oct	Icelandair
17 Oct - 20 Oct	TAP
23 Oct - 15 Nov	TAP
23 Oct - 16 Nov	TAP

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 301€

Return flights