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SFO - SNN

€398 Find cheap flights from San Francisco to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Shannon departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Shannon, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,479,581 times on KAYAK, and here's why:

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Cheap flight deals from San Francisco to Shannon (SFO-SNN)

 
These are the cheapest deals for flights from San Francisco to Shannon currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from San Francisco to Shannon

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Francisco to Shannon.

Recent one-way flight deals from San Francisco to Shannon

Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Shannon found on KAYAK recently.

Recent last-minute flight deals from San Francisco to Shannon

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Francisco to Shannon.

Recent direct flight deals from San Francisco to Shannon

The latest deals for direct flights from San Francisco to Shannon so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Francisco to Shannon

Find recent round-trip train or bus tickets from San Francisco to Shannon.

All round-trip flight deals to Shannon

The cheapest plane tickets to Shannon found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
14:25 - 16:45SFO-SNN
18h 20m2 stops
07:45 - 22:44SNN-SFO
22h 59m2 stops
€470American Airlines
Find Deal
Sun, 12 Jan - Tue, 21 Jan
17:30 - 16:45SFO-SNN
15h 15m1 stop
07:45 - 15:00SNN-SFO
15h 15m1 stop
€642American Airlines
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Sun, 12 Jan - Tue, 21 Jan
16:08 - 19:25SFO-SNN
19h 17m2 stops
07:45 - 18:45SNN-SFO
19h 00m1 stop
€645American Airlines
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Sun, 12 Jan - Tue, 21 Jan
00:32 - 10:30SFO-SNN
25h 58m2 stops
12:30 - 09:50SNN-SFO
29h 20m2 stops
€667United Airlines
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Tue, 29 Apr - Thu, 15 May
23:45 - 10:30SFO-SNN
26h 45m2 stops
12:30 - 09:37SNN-SFO
29h 07m2 stops
€751United Airlines
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Fri, 4 Apr - Sun, 13 Apr
08:00 - 05:35SFO-SNN
13h 35m1 stop
13:45 - 22:43SNN-SFO
16h 58m1 stop
€781Aer Lingus
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Wed, 23 Apr - Wed, 30 Apr
15:30 - 16:10SFO-SNN
16h 40m1 stop
13:45 - 23:39SNN-SFO
17h 54m1 stop
€808
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Wed, 23 Apr - Wed, 30 Apr
15:30 - 16:10SFO-SNN
16h 40m1 stop
14:50 - 23:57SNN-SFO
17h 07m1 stop
€816
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Wed, 30 Apr - Thu, 15 May
15:30 - 16:10SFO-SNN
16h 40m1 stop
21:25 - 15:50SNN-SFO
26h 25m2 stops
€830Aer Lingus
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Wed, 30 Apr - Thu, 15 May
07:00 - 10:30SFO-SNN
19h 30m1 stop
12:30 - 21:41SNN-SFO
17h 11m1 stop
€1,077Lufthansa
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Wed, 9 Apr - Fri, 18 Apr
13:35 - 16:45SFO-SNN
19h 10m2 stops
€398American Airlines
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Wed, 4 Dec
20:40 - 19:25SFO-SNN
14h 45m1 stop
€486American Airlines
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Wed, 4 Dec
12:18 - 16:45SFO-SNN
20h 27m2 stops
€526British Airways
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Sun, 24 Nov
16:25 - 16:45SFO-SNN
40h 20m2 stops
€534Air Canada
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Sat, 23 Nov
22:39 - 06:00SFO-SNN
23h 21m1 stop
€536American Airlines
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Sat, 23 Nov
23:48 - 06:15SFO-SNN
22h 27m2 stops
€581American Airlines
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Fri, 22 Nov
13:24 - 06:00SFO-SNN
32h 36m1 stop
€602American Airlines
Find Deal
Fri, 22 Nov
23:59 - 11:30SFO-SNN
27h 31m3 stops
€721
Find Deal
Sat, 23 Nov

Flights from San Francisco to Shannon - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Shannon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Shannon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Shannon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to Shannon is March, where tickets cost €686 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is €1,058 and €1,026 respectively.

How far in advance should I book a flight from San Francisco to Shannon?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Shannon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Francisco to Shannon, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 days before departure.

Good to know

Low season

March

High season

July

Cheapest flight

€398
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from San Francisco to Shannon

When to book flights from San Francisco to Shannon

Are your dates flexible? Find out the best times to travel from San Francisco to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Shannon

  • What is the cheapest flight from San Francisco to Shannon?

    In the last 3 days, the lowest price for a flight from San Francisco to Shannon was €432 for a one-way ticket and €511 for a return.

  • Which aircraft models fly most regularly from San Francisco to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Shannon?

    oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Shannon, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from San Francisco to Shannon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Shannon with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Shannon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Shannon from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from San Francisco to Shannon

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Shannon found on KAYAK in the last 72 hours.
4/12Wed
2 stopsAmerican Airlines
19h 10mSFO-SNN
€398
4/12Wed
1 stopAmerican Airlines
14h 45mSFO-SNN
€486
24/11Sun
2 stopsBritish Airways
20h 27mSFO-SNN
€526
23/11Sat
2 stopsAir Canada
40h 20mSFO-SNN
€534
23/11Sat
1 stopAmerican Airlines
23h 21mSFO-SNN
€536
22/11Fri
2 stopsAmerican Airlines
22h 27mSFO-SNN
€581
22/11Fri
1 stopAmerican Airlines
32h 36mSFO-SNN
€602
23/11Sat
3 stops
27h 31mSFO-SNN
€721

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Everything you need to know for your flight from San Francisco to Shannon

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