British Airways Cheap Flights from San Francisco to Shannon

View €454 flight on Tue, 3 Mar 2026Opens in a new window

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Prices were available within the past 7 days and start at €454 for one-way flights and €607 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€607 Return, found 2 days ago
€607
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €607 found 2 days ago
British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€611 Return, found 2 days ago
€611
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €611 found 2 days ago
British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€648 Return, found 2 days ago
€648
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €648 found 2 days ago
British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€652 Return, found 2 days ago
€652
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €652 found 2 days ago
British Airways
Fri, 17 Oct - Fri, 7 Nov
SFO
San Francisco
SNN
Shannon
€654 Return, found 6 days ago
€654
Return
found 6 days ago
Select British Airways flight, departing Fri, 17 Oct from San Francisco to Shannon, returning Fri, 7 Nov, priced at €654 found 6 days ago
British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€664 Return, found 2 days ago
€664
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €664 found 2 days ago
British Airways
Sun, 19 Oct - Tue, 4 Nov
SFO
San Francisco
SNN
Shannon
€694 Return, found 2 days ago
€694
Return
found 2 days ago
Select British Airways flight, departing Sun, 19 Oct from San Francisco to Shannon, returning Tue, 4 Nov, priced at €694 found 2 days ago
British Airways
Mon, 6 Oct - Tue, 14 Oct
SFO
San Francisco
SNN
Shannon
€698 Return, found 2 days ago
€698
Return
found 2 days ago
Select British Airways flight, departing Mon, 6 Oct from San Francisco to Shannon, returning Tue, 14 Oct, priced at €698 found 2 days ago
San Francisco to Shannon route information
Origin airport
San Francisco Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, JetBlue Airways
Popular airline
American Airlines
Distance
8056 km

Frequently asked questions

How much is a British Airways flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Landing cheap one-way British Airways flights from SFO to SNN from €454 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from €607 for your next adventure.**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 SFO to SNN with British Airways?
Look for return or one-way flights to Shannon in January or February. You could find cheaper fares with British Airways during these off-peak times.
Does British Airways fly nonstop from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Enter your dates, click search and check "Nonstop" on Expedia to browse any direct flights from SFO to SNN with British Airways or other carriers.
What airports does British Airways fly into in Shannon?
British Airways flights from San Francisco Intl. Airport (SFO) to Shannon come in to Shannon Airport (SNN). This is the main entry point here.
What kind of luggage can I take on a British Airways flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
On a standard economy flight with British Airways from SFO to SNN, you can bring 1 checked-in bag up to 23 kgs (50 lbs) with dimensions no larger than 89 centimetres x 41 centimetres x 74 centimetres in total. For carry-on, you can have 1 cabin bag weighing up to 23 kgs (50 lbs) and measuring less than 56 centimetres x 23 centimetres x 43 centimetres. Size and weight limits may vary based on the cabin class you're in and airfare type. To make sure you won't face extra charges at the airport, check your British Airways booking or go to the airline's website before you begin packing.
Can I change or cancel my British Airways flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Changes are often free within 24 hours of booking, but your airline may charge a fee after that. For more information about altering your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to make changes without being charged, tick the "No cancel fee" or "Changes included" filter when organising your next getaway.
*Available to Expedia members.