Cheapest return flights from Boston to Dublin in December from 292€

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

Return flights

01 Dec - 15 Dec United
10 Dec - 17 Dec United
04 Dec - 08 Dec Air Canada
03 Dec - 10 Dec Aer Lingus direct
08 Dec - 11 Dec Aer Lingus direct
09 Dec - 12 Dec Aer Lingus direct
01 Dec - 04 Dec Aer Lingus direct
02 Dec - 05 Dec Aer Lingus direct
02 Dec - 09 Dec Aer Lingus direct
26 Dec - 11 Jan United
29 Dec - 07 Jan United
01 Dec - 29 Dec United
30 Dec - 05 Jan Air Canada
24 Dec - 05 Jan Air Canada
29 Dec - 07 Jan Aer Lingus direct
30 Dec - 06 Jan Aer Lingus direct
20 Dec - 05 Jan Air Canada
29 Dec - 01 Jan Aer Lingus direct
30 Dec - 02 Jan Aer Lingus direct
21 Dec - 04 Jan Icelandair

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

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