Shannon (SNN) to Boston (BOS) flight deal from $425 USD in economy class

EIAer Lingus

Round Trip•Economy

SNN

Shannon Airport

Shannon, Ireland

BOS

Logan International Airport

Boston, United States

$703 USD

-40%$425 USD

Verified Nov 29, 2025 at 7:50 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$2,007 2$507 3$507 4$507 5$507 6$507 7$507 8$507 9$507 10$507 11$1,325 12$1,325 13$1,325 14$948 15$948 16$478 17$478 18$478 19$600 20$895 21$895 22$559 23$559 24 25 26$895 27$1,243 28$809 29$809 30$1,243 31$809 1 2 3$2,007 4$2,007

Fair Availability

21% of dates checked are available within 10% of the lowest price

Sunday, December 14th, 2025

7 round-trip options

Returning

Fri, Dec 19, 2025•5 Day Trip

$2,216 USD

Google Flights

Returning

Sat, Dec 20, 2025•6 Day Trip

$2,216 USD

Google Flights

Returning

Sun, Dec 21, 2025•7 Day Trip

$2,059 USD

Google Flights

Returning

Mon, Dec 22, 2025•8 Day Trip

$1,296 USD

Google Flights

Returning

Fri, Dec 26, 2025•12 Day Trip

$2,059 USD

Google Flights

Returning

Sat, Dec 27, 2025•13 Day Trip

$2,059 USD

Google Flights

Returning

Sun, Dec 28, 2025•14 Day Trip

$948 USD

Google Flights