Cheapest return flights from Boston to Shannon in April from 506€

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 April 2025 (see full year).

Return flights

08 Apr - 23 Apr Frontier Airlines
03 Apr - 07 Apr United
03 Apr - 06 Apr United
01 Apr - 10 May Frontier Airlines
15 Apr - 22 Apr United
03 Apr - 10 Apr United
16 Apr - 22 Apr Icelandair
24 Apr - 27 Apr Icelandair
10 Apr - 23 Apr Frontier Airlines
30 Apr - 04 May Icelandair
10 Apr - 14 Apr Frontier Airlines
10 Apr - 24 Apr Frontier Airlines

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

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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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