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

One-Way flights

19 Jan	Aer Lingus
29 Jan	Aer Lingus
14 Jan	Ryanair
12 Jan	Ryanair
29 Jan	Aer Lingus	direct
30 Jan	TAP
12 Jan	Aer Lingus	direct
26 Jan	Aer Lingus	direct
27 Jan	Aer Lingus	direct
09 Jan	Aer Lingus	direct

Also check the deals for return 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 one-way flights from Dublin to Boston in January from 209€

One-Way flights