Cheapest return flights from Shannon to Boston in May from $414

Best time to book flights for Shannon (SNN) to Boston (BOS) flights at AirHint

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

Return flights

08 May - 12 May Aer Lingus direct
08 May - 11 May Aer Lingus direct
26 May - 02 Jun Delta
02 May - 09 May Ryanair
02 May - 09 May Aer Lingus direct
01 May - 08 May Ryanair
26 May - 02 Jun Aer Lingus direct
29 May - 28 Jun Aer Lingus
01 May - 08 May Aer Lingus direct
29 May - 28 Jun Aer Lingus direct
23 May - 08 Jun Aer Lingus
23 May - 08 Jun Aer Lingus direct

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

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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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