SFO - SNN

€252 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 27/11. 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 47,107,125 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
11:00 - 10:30SFO-SNN
15h 30m2 stops
12:30 - 20:35SNN-SFO
16h 05m1 stop
€682United Airlines
Find Deal
Tue, 15 Apr - Wed, 23 Apr
07:50 - 10:30SFO-SNN
18h 40m2 stops
12:30 - 00:11SNN-SFO
19h 41m2 stops
€686United Airlines
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Wed, 30 Apr - Thu, 15 May
13:21 - 16:10SFO-SNN
18h 49m2 stops
07:40 - 20:45SNN-SFO
21h 05m2 stops
€691American Airlines
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Wed, 23 Apr - Wed, 30 Apr
08:30 - 11:30SFO-SNN
19h 00m2 stops
07:45 - 21:45SNN-SFO
22h 00m2 stops
€811Air Canada
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Wed, 4 Dec - Thu, 20 Feb
15:30 - 16:05SFO-SNN
16h 35m1 stop
13:45 - 22:12SNN-SFO
16h 27m1 stop
€830
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Wed, 23 Apr - Wed, 30 Apr
15:30 - 16:05SFO-SNN
16h 35m1 stop
13:45 - 22:12SNN-SFO
16h 27m1 stop
€838
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Tue, 15 Apr - Wed, 23 Apr
15:30 - 20:35SFO-SNN
21h 05m1 stop
21:25 - 15:50SNN-SFO
26h 25m2 stops
€855Aer Lingus
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Wed, 23 Apr - Wed, 30 Apr
06:43 - 06:15SFO-SNN
15h 32m2 stops
07:45 - 15:00SNN-SFO
15h 15m1 stop
€983American Airlines
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Mon, 16 Dec - Mon, 23 Dec
17:20 - 11:30SFO-SNN
34h 10m2 stops
17:30 - 15:00SNN-SFO
29h 30m1 stop
€1,091Aer Lingus
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Tue, 17 Dec - Tue, 24 Dec
16:25 - 11:30SFO-SNN
35h 05m2 stops
07:45 - 09:34SNN-SFO
33h 49m2 stops
€3,765Air Canada
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Sun, 19 Jan - Thu, 30 Jan
22:11 - 09:20SFO-SNN
51h 09m2 stops
€252
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Wed, 27 Nov
22:11 - 07:40SFO-SNN
49h 29m3 stops
€295
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Wed, 27 Nov
06:00 - 14:10SFO-SNN
24h 10m3 stops
€310
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Mon, 24 Feb
16:04 - 11:55SFO-SNN
59h 51m2 stops
€314
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Sat, 30 Nov
10:15 - 18:05SFO-SNN
23h 50m3 stops
€343
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Thu, 20 Feb
18:46 - 19:25SFO-SNN
17h 39m2 stops
€379American Airlines
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Tue, 25 Mar
16:05 - 19:25SFO-SNN
19h 20m2 stops
€453American Airlines
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Wed, 4 Dec
13:00 - 16:45SFO-SNN
19h 45m2 stops
€470Air Canada
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Mon, 24 Feb
17:30 - 16:45SFO-SNN
15h 15m1 stop
€523Aer Lingus
Find Deal
Wed, 27 Nov
07:00 - 06:00SFO-SNN
15h 00m1 stop
€6,398JetBlue
Find Deal
Sat, 4 Jan

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 €705 on average. On the other hand, the most expensive months are November and December, where the average cost of tickets is €1,185 and €1,088 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

€252
Best time to beat the crowds (24% 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 €266 for a one-way ticket and €720 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 oneworld 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.
27/11Wed
2 stops
51h 09mSFO-SNN
€252
27/11Wed
3 stops
49h 29mSFO-SNN
€295
24/2Mon
3 stops
24h 10mSFO-SNN
€310
30/11Sat
2 stops
59h 51mSFO-SNN
€314
20/2Thu
3 stops
23h 50mSFO-SNN
€343
25/3Tue
2 stopsAmerican Airlines
17h 39mSFO-SNN
€379
4/12Wed
2 stopsAmerican Airlines
19h 20mSFO-SNN
€453
24/2Mon
2 stopsAir Canada
19h 45mSFO-SNN
€470
27/11Wed
1 stopAer Lingus
15h 15mSFO-SNN
€523
4/1Sat
1 stopJetBlue
15h 00mSFO-SNN
€6,398

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

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