Cheapest return flights from Dublin to Boston in December from $389

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

Return flights

04 Dec - 10 Dec Aer Lingus direct
05 Dec - 12 Dec Aer Lingus direct
01 Dec - 08 Dec Aer Lingus direct
02 Dec - 09 Dec Aer Lingus direct
06 Dec - 09 Dec Aer Lingus direct
06 Dec - 13 Dec Aer Lingus direct
08 Dec - 15 Dec Aer Lingus direct
12 Dec - 15 Dec Aer Lingus direct
09 Dec - 16 Dec Aer Lingus direct
13 Dec - 16 Dec Aer Lingus direct
14 Dec - 19 Jan Aer Lingus direct
26 Dec - 11 Jan Iberia
21 Dec - 15 Jan Aer Lingus direct
26 Dec - 11 Jan Aer Lingus direct
18 Dec - 05 Jan British Airways
21 Dec - 05 Jan British Airways
29 Dec - 05 Jan British Airways
22 Dec - 07 Jan British Airways
26 Dec - 02 Jan Iberia
27 Dec - 01 Jan Iberia

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

Skyscanner

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.

Book a cheap hotel in Boston

Cheap car rent in Boston

Feel free to contact us with any feedback or request another flight research.