Cheapest return flights from Shannon to Boston in August from $600

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 August 2025 (see full year).

Return flights

04 Aug - 24 Aug Aer Lingus direct
13 Aug - 28 Aug Aer Lingus direct
01 Aug - 10 Aug United
01 Aug - 04 Aug United
19 Aug - 26 Aug United
01 Aug - 08 Aug United
14 Aug - 18 Aug Aer Lingus direct
08 Aug - 18 Aug Aer Lingus direct
06 Aug - 20 Aug Ryanair
06 Aug - 20 Aug Aer Lingus direct

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

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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