Cheapest return flights from Shannon to Boston in December from 347€

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

Return flights

05 Dec - 07 Dec Aer Lingus direct
26 Dec - 29 Dec Aer Lingus direct
23 Dec - 30 Dec Aer Lingus direct
19 Dec - 02 Jan Aer Lingus direct
14 Dec - 17 Dec Aer Lingus direct
10 Dec - 13 Dec American Airlines
10 Dec - 18 Dec Aer Lingus direct
28 Dec - 04 Jan Aer Lingus direct
28 Dec - 30 Dec Aer Lingus direct
10 Dec - 13 Dec Aer Lingus direct

Also check the deals for one-way flights from Shannon 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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