Cheapest return flights from Shannon to Boston in July from $728

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

Return flights

25 Jul - 09 Aug British Airways
04 Jul - 13 Jul United
09 Jul - 20 Jul United
02 Jul - 25 Jul United
23 Jul - 30 Jul United
04 Jul - 18 Jul United
01 Jul - 08 Jul United
01 Jul - 08 Jul Aer Lingus direct
09 Jul - 20 Jul Aer Lingus direct
24 Jul - 27 Jul Aer Lingus direct
08 Jul - 12 Jul Aer Lingus direct
09 Jul - 06 Aug Aer Lingus direct
07 Jul - 04 Aug Aer Lingus direct
08 Jul - 05 Aug Aer Lingus direct
28 Jul - 16 Aug Aer Lingus direct
25 Jul - 09 Aug Aer Lingus direct

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

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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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