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

Return flights

13 Feb - 23 Feb	Ryanair
12 Feb - 23 Mar	Ryanair
05 Feb - 08 Feb	Ryanair
04 Feb - 08 Feb	Ryanair
11 Feb - 22 Feb	Ryanair
03 Feb - 10 Feb	Ryanair
10 Feb - 17 Feb	Ryanair
06 Feb - 14 Feb	Ryanair
09 Feb - 18 Feb	Ryanair
10 Feb - 18 Feb	Ryanair
14 Feb - 23 Feb	Ryanair
27 Feb - 06 Mar	British Airways
27 Feb - 05 Mar	British Airways
28 Feb - 05 Mar	British Airways
28 Feb - 06 Mar	British Airways
27 Feb - 07 Mar	British Airways
28 Feb - 08 Mar	British Airways
27 Feb - 05 Mar	Aer Lingus	direct
28 Feb - 05 Mar	Aer Lingus	direct
28 Feb - 06 Mar	Aer Lingus	direct

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

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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Cheapest return flights from Shannon to Boston in February from $422

Return flights