Cheapest return flights from Shannon to Boston in December from $580

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

Return flights

23 Dec - 02 Jan British Airways
12 Dec - 02 Jan British Airways
12 Dec - 02 Jan Aer Lingus direct
23 Dec - 02 Jan Iberia direct

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

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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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