Cheapest return BOS–SNN flights, August

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

Return flights

19 Aug - 26 Aug Air France
16 Aug - 24 Aug United
17 Aug - 24 Aug United
02 Aug - 07 Aug Air France
19 Aug - 26 Aug Aer Lingus direct
16 Aug - 24 Aug Aer Lingus direct
17 Aug - 24 Aug Aer Lingus direct

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

Powered by

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.

Book a cheap hotel in Shannon

Cheap car rent in Shannon

Feel free to contact us with any feedback or request another flight research.