Cheapest return flights from Boston to Shannon in May from 505€

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

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

Return flights

04 May - 13 May Aer Lingus direct
01 May - 09 May Icelandair
04 May - 10 May Icelandair
24 May - 08 Jun Aer Lingus direct
16 May - 31 May Fly Play
14 May - 22 May Frontier Airlines
15 May - 01 Jun Icelandair

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

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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