Cheapest return flights from Shannon to Boston in January from $490

AirHint found the following cheapest return flights from Shannon (SNN) to Boston (BOS) in January 2026 (see full year).

Return flights

28 Jan - 04 Feb Ryanair
30 Jan - 04 Feb Aer Lingus
26 Jan - 02 Feb Ryanair
29 Jan - 05 Feb British Airways
29 Jan - 04 Feb British Airways
29 Jan - 02 Feb British Airways
26 Jan - 03 Feb Ryanair
30 Jan - 04 Feb Aer Lingus direct
28 Jan - 04 Feb Aer Lingus direct
30 Jan - 03 Feb Aer Lingus direct
23 Jan - 30 Jan Aer Lingus
23 Jan - 30 Jan Aer Lingus direct
14 Jan - 19 Jan Aer Lingus direct
15 Jan - 18 Jan Aer Lingus direct
16 Jan - 19 Jan Aer Lingus direct
18 Jan - 25 Jan Aer Lingus direct
19 Jan - 28 Jan Ryanair
19 Jan - 25 Jan Ryanair
13 Jan - 22 Jan British Airways
13 Jan - 22 Jan Aer Lingus direct

Also check the deals for one-way flights from Shannon to Boston in January.

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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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