$545 Cheap British Airways flights San Diego (SAN) to Shannon (SNN)

View $545 flight on Tue, Oct 7, 2025Opens in a new window

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$545 Cheap British Airways flights San Diego (SAN) to Shannon (SNN)

Prices were available within the past 7 days and start at $545 for one-way flights and $785 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Feb 2 - Tue, Feb 10
SAN
San Diego
SNN
Shannon
$785 Roundtrip, found 15 hours ago
$785
Roundtrip
found 15 hours ago
Select British Airways flight, departing Mon, Feb 2 from San Diego to Shannon, returning Tue, Feb 10, priced at $785 found 15 hours ago
British Airways
Mon, Feb 2 - Tue, Feb 10
SAN
San Diego
SNN
Shannon
$786 Roundtrip, found 15 hours ago
$786
Roundtrip
found 15 hours ago
Select British Airways flight, departing Mon, Feb 2 from San Diego to Shannon, returning Tue, Feb 10, priced at $786 found 15 hours ago
Flights from San Diego (SAN) to Shannon (SNN)
Origin airport
San Diego Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Delta, JetBlue Airways, Lufthansa, United
Popular airline
British Airways
Distance
5135 mi

Frequently asked questions

How much is a British Airways flight from San Diego Intl. Airport (SAN) to Shannon Airport (SNN)?
Make use of the "Price (lowest to highest)" filter on Expedia to find cheap British Airways return flights from $785 from SAN to SNN. Affordable one-way fares from $545 are available too.**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 SAN to SNN with British Airways?
Search for one-way or return flights to Shannon in January or February. You could find lower fares with British Airways during these off-peak months.
What is the cheapest time to book flights from San Diego Intl. Airport (SAN) to Shannon Airport (SNN) with British Airways?
Start your search for British Airways flights from SAN to SNN about one month before you want to leave. The cheapest time to book an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary and fare class, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does British Airways fly nonstop from San Diego Intl. Airport (SAN) to Shannon Airport (SNN)?
To find out if there's a direct route from SAN to SNN with British Airways or other airlines, check the "Nonstop" box when looking for flights.
What is the earliest British Airways flight from SAN to SNN?
Find British Airways's earliest flights from SAN to SNN by checking our "Early Morning" and "Morning" filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does British Airways fly into in Shannon?
Take a British Airways flight from San Diego Intl. Airport (SAN) to Shannon, and you're most likely to touch down at Shannon Airport (SNN). This is the airline's primary hub in this destination.
What kind of luggage can I take on a British Airways flight from San Diego Intl. Airport (SAN) to Shannon Airport (SNN)?
On a standard economy flight with British Airways from SAN to SNN, you can bring 1 checked-in bag up to 50 lb with dimensions no larger than 29 inches x 15 inches x 16 inches in total. For carry-on, you're permitted 2 cabin bags weighing up to 50 lb and measuring less than 19 inches x 9 inches x 17 inches. Weight and size limits may vary based on the airfare type and cabin class you're in. To make sure you're not hit with extra charges at the terminal, check your British Airways booking or visit the airline's website before loading up your suitcase.
Why fly with British Airways from SAN to SNN?
Flying from SAN to SNN with British Airways comes with plenty of perks, including top-tier customer service and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That's on top of the British Airways Executive Club points you can earn with British Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my British Airways flight from San Diego Intl. Airport (SAN) to Shannon Airport (SNN)?
Changes are typically free within 24 hours of booking, but your airline may charge you after that time. For further details about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to change your plans without additional costs, tick the "Changes included" and "No cancel fee" filters when organizing your next break.

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