$521 Cheap Air Canada flights San Francisco (SFO) to Shannon (SNN)

View $521 flight on Sat, Sep 6, 2025Opens in a new window

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$521 Cheap Air Canada flights San Francisco (SFO) to Shannon (SNN)

Prices were available within the past 7 days and start at $521 for one-way flights and $706 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Nov 2 - Tue, Nov 11
SFO
San Francisco
SNN
Shannon
$706 Roundtrip, found 1 day ago
$706
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Nov 2 from San Francisco to Shannon, returning Tue, Nov 11, priced at $706 found 1 day ago
Flights from San Francisco (SFO) to Shannon (SNN)
Origin airport
San Francisco Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, JetBlue Airways, KLM, Lufthansa, United
Popular airline
British Airways
Distance
5035 mi

Frequently asked questions

How much is an Air Canada flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Landing cheap one-way Air Canada flights from SFO to SNN from $521 on Expedia is simple --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $706 for your next break.**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 Air Canada?
January is one of the least expensive months to jet away to Shannon with Air Canada. You could also find fantastic deals on one-way and return tickets in February.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN) with Air Canada?
Check for Air Canada flights from SFO to SNN about one month before you want to go. The most affordable time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of fare class and itinerary, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking 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 Air Canada fly nonstop from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
To figure out if there's a direct journey from SFO to SNN with Air Canada or another airline, select the "Nonstop" filter when browsing for tickets.
What is the earliest Air Canada flight from SFO to SNN?
Sort your results by "Early Morning" and "Morning" to see the earliest departures from SFO to SNN. Jetting off early means flight cancellations are less likely.**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 Air Canada fly into in Shannon?
Air Canada flights from San Francisco Intl. Airport (SFO) to Shannon touch down at Shannon Airport (SNN). This is the main entry point to this destination.
Why fly with Air Canada from SFO to SNN?
Offering top-tier customer service and a 4-star airline rating, Air Canada is the leading choice for many travelers heading from SFO to SNN. Also, if you're an Air Canada Aeroplan and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel.*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 Air Canada flight from San Francisco Intl. Airport (SFO) to Shannon Airport (SNN)?
Depending on your ticket type, a fee may apply if you cancel or reschedule your flight more than 24 hours after it has been confirmed. To find tickets with more flexibility, select our "No cancel fee" or "Changes included" filter while searching for flights. For additional information on modifying or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.