Cheapest return flights from Shannon to Boston in June from $521

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 June 2025 (see full year).

Return flights

01 Jun - 29 Jul Delta
18 Jun - 25 Jun Ryanair
12 Jun - 16 Jun Ryanair
05 Jun - 16 Jun Ryanair
05 Jun - 09 Jun Ryanair
01 Jun - 10 Jun Ryanair
11 Jun - 18 Jun Ryanair
04 Jun - 11 Jun Delta
09 Jun - 19 Jun Air France
12 Jun - 19 Jun Air France
05 Jun - 12 Jun Air France
23 Jun - 07 Jul Air France
29 Jun - 06 Jul United
26 Jun - 03 Jul United
27 Jun - 07 Jul Air France
28 Jun - 16 Jul Air France
28 Jun - 16 Jul Aer Lingus direct

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

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.

Book a cheap hotel in Boston

Cheap car rent in Boston