$512 Cheap American Airlines flights San Francisco (SFO) to Shannon (SNN)

View $512 flight on Mon, Oct 13, 2025Opens in a new window

$512 Cheap American Airlines flights San Francisco (SFO) to Shannon (SNN)

Prices were available within the past 7 days and start at $512 for one-way flights and $685 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jul 30 - Mon, Aug 18
SFO
San Francisco
SNN
Shannon
$685 Roundtrip, found 2 days ago
$685
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jul 30 from San Francisco to Shannon, returning Mon, Aug 18, priced at $685 found 2 days ago
Flights from San Francisco (SFO) to Shannon (SNN)
Origin airport
San Francisco Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Delta, JetBlue Airways, Lufthansa, United
Popular airline
British Airways
Distance
5035 mi

Frequently asked questions

How much is an American Airlines flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Finding cheap one-way American Airlines flights from SFO to SNN from $512 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $685 for your next exciting 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 American Airlines?
American Airlines flights to Shannon are often cheaper in the quieter months of January and February. Whether you need a round-trip or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN) with American Airlines?
To discover cheap flights from SFO to SNN with American Airlines, begin searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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 American Airlines fly nonstop from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
To find out if there's a direct journey from SFO to SNN with American Airlines or any other carriers, select the "Nonstop" filter when looking for tickets.
What is the earliest American Airlines flight from SFO to SNN?
Filter your results by "Morning" and "Early Morning" to browse the earliest flights from SFO to SNN. Heading off early means you're less likely to experience cancellations.**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 American Airlines fly into in Shannon?
Jump on an American Airlines flight from San Francisco Intl. Airport (SFO) to Shannon, and you'll likely land at Shannon Airport (SNN). This is the airline's primary hub in this destination.
Can I change or cancel my American Airlines flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
In most cases, you can modify or cancel your flight, although there may be a charge if you made your booking over 24 hours ago. Need to keep your options open? Use Expedia's "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to revise your plans. To modify your itinerary, head to "Trips," select your flight and click on "Manage Booking" for further information.

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