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

Return flights

06 Oct - 14 Oct	Iberia For Level
07 Oct - 14 Oct	Iberia For Level
15 Oct - 20 Oct	Iberia For Level
06 Oct - 17 Oct	Iberia For Level
07 Oct - 13 Oct	Vueling Airlines
13 Oct - 19 Oct	Vueling Airlines
09 Oct - 13 Oct	Aer Lingus
13 Oct - 21 Oct	Ryanair
02 Oct - 06 Oct	Aer Lingus
09 Oct - 14 Oct	Aer Lingus
27 Oct - 02 Nov	TAP
28 Oct - 02 Nov	TAP
29 Oct - 02 Nov	TAP
30 Oct - 03 Nov	Ryanair
23 Oct - 15 Nov	TAP
29 Oct - 04 Nov	TAP
22 Oct - 02 Nov	TAP
23 Oct - 01 Nov	TAP
24 Oct - 02 Nov	TAP
30 Oct - 02 Nov	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 $356

Return flights