SFO - SNN

€437 Find Cheap Flights from San Francisco to Shannon

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Shannon departing on 19/10. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
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
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Flight Deals

Cheap Flights from San Francisco to Shannon (SFO-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Shannon

Sun, 19 Oct - Tue, 4 Nov
American Airlines Logo
16:30 - 16:10SFO-SNN
15h 40m1 stop
American Airlines Logo
07:50 - 15:00SNN-SFO
15h 10m1 stop
€437American Airlines
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Sun, 19 Oct - Tue, 4 Nov
American Airlines Logo
09:16 - 11:20SFO-SNN
18h 04m2 stops
American Airlines Logo
07:50 - 15:00SNN-SFO
15h 10m1 stop
€441American Airlines
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Wed, 8 Oct - Fri, 17 Oct
United Airlines Logo
05:00 - 10:15SFO-SNN
21h 15m2 stops
United Airlines Logo
12:30 - 07:25SNN-SFO
26h 55m2 stops
€487United Airlines
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Tue, 7 Oct - Wed, 15 Oct
United Airlines Logo
13:00 - 10:15SFO-SNN
13h 15m1 stop
United Airlines Logo
12:30 - 21:23SNN-SFO
16h 53m1 stop
€533United Airlines
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Sat, 1 Nov - Sat, 8 Nov
Air Canada Logo
18:53 - 11:30SFO-SNN
57h 37m2 stops
Air Canada Logo
17:25 - 20:34SNN-SFO
35h 09m2 stops
€624Air Canada
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Sun, 19 Oct - Tue, 4 Nov
Air Canada Logo
11:35 - 20:35SFO-SNN
25h 00m2 stops
Air Canada Logo
07:50 - 15:35SNN-SFO
39h 45m2 stops
€627Air Canada
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Sat, 1 Nov - Sat, 8 Nov
Multiple Airlines Logo
07:00 - 06:20SFO-SNN
16h 20m1 stop
Multiple Airlines Logo
14:45 - 22:50SNN-SFO
16h 05m1 stop
€651Multiple Airlines
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Wed, 8 Oct - Thu, 16 Oct
British Airways Logo
16:30 - 16:10SFO-SNN
15h 40m1 stop
British Airways Logo
07:40 - 13:50SNN-SFO
14h 10m1 stop
€657British Airways
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Wed, 8 Oct - Thu, 16 Oct
British Airways Logo
19:20 - 20:35SFO-SNN
17h 15m1 stop
British Airways Logo
07:40 - 18:43SNN-SFO
19h 03m2 stops
€665British Airways
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Sat, 1 Nov - Sat, 8 Nov
Multiple Airlines Logo
21:49 - 16:45SFO-SNN
35h 56m2 stops
Multiple Airlines Logo
17:25 - 15:00SNN-SFO
29h 35m1 stop
€720Multiple Airlines
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Everything you should know

When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 22% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€437
Overall average: €588
American Airlines
Sun 19/10Tue 4/11
SFO - SNN • 1 stop
Cheapest one-way flight
Multiple Airlines
Fri 19/9
SFO - SNN • multi-stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Booking Insights

KAYAK's insights & trends for San Francisco to Shannon flights

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 round-trip 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 October, where tickets cost €588 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is €1,035 and €1,034 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from San Francisco to Shannon, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

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Good to know

Low seasonJanuary
Cheapest flight€437
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (36% 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 €516 for a return ticket.

  • 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.

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

Information on your arrival and departure airports

San Francisco (SFO)
Shannon (SNN)

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