Cheapest return flights from Dublin to Boston in December from $340

Best time to book flights for Dublin (DUB) to Boston (BOS) flights at AirHint

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

Return flights

04 Dec - 07 Dec Fly Play
03 Dec - 07 Dec Icelandair
04 Dec - 09 Dec Icelandair
27 Dec - 10 Jan Fly Play
07 Dec - 03 Jan Fly Play
10 Dec - 26 Dec British Airways
24 Dec - 31 Dec British Airways
26 Dec - 04 Jan British Airways
03 Dec - 07 Dec Aer Lingus direct
04 Dec - 09 Dec Aer Lingus direct
20 Dec - 26 Dec Fly Play
26 Dec - 01 Jan Delta
26 Dec - 03 Jan Fly Play
07 Dec - 03 Jan Aer Lingus direct
27 Dec - 10 Jan Aer Lingus direct
27 Dec - 03 Jan Fly Play
24 Dec - 29 Dec Aer Lingus direct
26 Dec - 02 Jan Aer Lingus direct
25 Dec - 03 Jan Icelandair
23 Dec - 27 Dec KLM

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.

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