Cheapest return flights from Boston to Dublin in December from $309
AirHint found the following cheapest return flights from Boston (BOS) to Dublin (DUB)
in December 2025 (see full year ).
Return flights
04 Dec
- 10 Dec
Lufthansa
$ 309
11 Dec
- 16 Dec
Lufthansa
$ 309
11 Dec
- 15 Dec
Austrian Airlines
$ 312
05 Dec
- 08 Dec
Lufthansa
$ 312
10 Dec
- 15 Dec
Austrian Airlines
$ 312
04 Dec
- 07 Dec
Austrian Airlines
$ 313
02 Dec
- 09 Dec
Austrian Airlines
$ 314
10 Dec
- 17 Dec
Austrian Airlines
$ 314
05 Dec
- 12 Dec
Lufthansa
$ 319
01 Dec
- 08 Dec
Austrian Airlines
$ 319
30 Dec
- 24 Jan
Aer Lingus
$ 340
direct
31 Dec
- 24 Jan
Aer Lingus
$ 340
direct
31 Dec
- 09 Jan
Aer Lingus
$ 348
direct
25 Dec
- 17 Jan
Air Canada
$ 349
26 Dec
- 17 Jan
Air Canada
$ 350
28 Dec
- 17 Jan
Air France
$ 358
26 Dec
- 23 Jan
Air Canada
$ 363
24 Dec
- 17 Jan
Air Canada
$ 399
28 Dec
- 17 Jan
Aer Lingus
$ 408
direct
28 Dec
- 10 Jan
Delta
$ 446
Also check the deals for one-way flights from Boston to Dublin in December .
Powered by
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.
Find us on social media
Feel free to contact us with any feedback or request another flight research.
Find us on social media