United Cheap Flights from Boston to Shannon

View €228 flight on Tue, 28 Apr 2026Opens in a new window
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Prices were available within the past 7 days and start at €228 for one-way flights and €329 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 13 Oct - Mon, 20 Oct
BOS
Boston
SNN
Shannon
€329 Return, found 2 days ago
€329
Return
found 2 days ago
Select United flight, departing Mon, 13 Oct from Boston to Shannon, returning Mon, 20 Oct, priced at €329 found 2 days ago
United
Sat, 4 Oct - Tue, 14 Oct
BOS
Boston
SNN
Shannon
€347 Return, found 5 days ago
€347
Return
found 5 days ago
Select United flight, departing Sat, 4 Oct from Boston to Shannon, returning Tue, 14 Oct, priced at €347 found 5 days ago
United
Wed, 8 Oct - Wed, 15 Oct
BOS
Boston
SNN
Shannon
€384 Return, found 3 days ago
€384
Return
found 3 days ago
Select United flight, departing Wed, 8 Oct from Boston to Shannon, returning Wed, 15 Oct, priced at €384 found 3 days ago
Boston to Shannon route information
Origin airport
Logan Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Delta, JetBlue Airways, Lufthansa, United
Popular airline
British Airways
Distance
4620 km
Average flight time
5 hours 50 mins

Frequently asked questions

How much is a United Airlines flight from Logan Intl. Airport (BOS) to Shannon Airport (SNN)?
Use the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines round-trip flights from €329 from BOS to SNN. Affordable one-way options from €228 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BOS to SNN with United Airlines?
United Airlines flights to Shannon are generally cheaper in the low-season months of January and February. Whether you need a return or one-way ticket, you could score a better deal then.
Does United Airlines fly nonstop from Logan Intl. Airport (BOS) to Shannon Airport (SNN)?
To find out if there's a direct journey from BOS to SNN with United Airlines or other carriers, check the "Nonstop" box when searching for tickets.
What airports does United Airlines fly into in Shannon?
United Airlines flights from Logan Intl. Airport (BOS) to Shannon touch down at Shannon Airport (SNN). This is the main entry point to this city.
Can I change or cancel my United Airlines flight from Logan Intl. Airport (BOS) to Shannon Airport (SNN)?
Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that. For further details about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to update your itinerary without being charged, apply the "Changes included" and "No cancel fee" filters when organising your next trip.
*Available to Expedia members.