AirHint found the following cheapest return flights from Dublin (DUB) to Boston (BOS) in January 2026 (see full year).

Return flights

22 Jan - 31 Jan	British Airways
23 Jan - 27 Jan	British Airways
24 Jan - 28 Jan	British Airways
31 Jan - 07 Feb	British Airways
23 Jan - 25 Jan	British Airways
31 Jan - 02 Feb	British Airways
22 Jan - 28 Jan	British Airways
27 Jan - 02 Feb	British Airways
26 Jan - 02 Feb	British Airways
24 Jan - 02 Feb	British Airways
29 Jan - 04 Feb	British Airways
25 Jan - 31 Jan	British Airways
15 Jan - 25 Jan	Finnair
22 Jan - 15 Feb	British Airways
16 Jan - 24 Jan	TAP
15 Jan - 22 Jan	TAP
15 Jan - 18 Jan	TAP
28 Jan - 01 Feb	TAP
29 Jan - 01 Feb	British Airways
30 Jan - 01 Feb	TAP

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

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 January from 282€

Return flights