SNN - SFO

€467 Find Cheap Flights from Shannon to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Shannon to San Francisco departing on 1/5. 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
0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to San Francisco, 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 Shannon to San Francisco, as well as popular online travel agencies
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

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Cheap Flight Deals from Shannon to San Francisco (SNN-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Shannon to San Francisco 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.

Recent return flight deals from Shannon to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Shannon to San Francisco.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
07:45 - 15:00SNN-SFO
15h 15m1 stop
16:18 - 16:45SFO-SNN
16h 27m2 stops
€618British Airways
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Sat, 18 Jan - Wed, 22 Jan
07:45 - 20:36SNN-SFO
20h 51m2 stops
16:18 - 16:45SFO-SNN
16h 27m2 stops
€624
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Sat, 18 Jan - Wed, 22 Jan
07:45 - 20:50SNN-SFO
21h 05m2 stops
17:30 - 16:45SFO-SNN
15h 15m1 stop
€625
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Sun, 19 Jan - Sat, 25 Jan
07:45 - 15:00SNN-SFO
15h 15m1 stop
17:30 - 16:45SFO-SNN
15h 15m1 stop
€628
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Sat, 18 Jan - Wed, 22 Jan
07:45 - 21:06SNN-SFO
21h 21m3 stops
07:00 - 16:45SFO-SNN
25h 45m2 stops
€726Air Canada
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Mon, 3 Feb - Mon, 10 Feb
09:30 - 18:55SNN-SFO
17h 25m2 stops
06:35 - 10:30SFO-SNN
19h 55m2 stops
€740United Airlines
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Wed, 4 Jun - Wed, 18 Jun
07:45 - 15:00SNN-SFO
15h 15m1 stop
17:30 - 16:45SFO-SNN
15h 15m1 stop
€756Aer Lingus
Find Deal
Sun, 19 Jan - Sat, 25 Jan
13:05 - 12:45SNN-SFO
31h 40m1 stop
21:00 - 11:10SFO-SNN
30h 10m1 stop
€824Delta
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Wed, 4 Jun - Wed, 18 Jun
17:30 - 21:47SNN-SFO
36h 17m2 stops
08:30 - 16:45SFO-SNN
24h 15m2 stops
€2,647Air Canada
Find Deal
Sun, 2 Feb - Sun, 9 Feb
20:05 - 15:30SNN-SFO
27h 25m2 stops
17:30 - 16:45SFO-SNN
15h 15m1 stop
€3,726Aer Lingus
Find Deal
Sun, 2 Feb - Sun, 9 Feb

Flights from Shannon to San Francisco - Travel Insights & Trends

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

Which airlines provide the cheapest flights from Shannon to San Francisco?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest return tickets from Shannon to San Francisco were found on British Airways (€618) and Air Canada (€726).

Good to know

Low season

September

High season

June

Cheapest flight

€467
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Shannon to San Francisco

When to book flights from Shannon to San Francisco

Are your dates flexible? Find out the best times to travel from Shannon to San Francisco 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 Shannon to San Francisco

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

    In the last 3 days, the lowest price for a flight from Shannon to San Francisco was €481 for a one-way ticket and €637 for a return.

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

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

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

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

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

    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 Shannon to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Shannon 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 Shannon to San Francisco?

    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 San Francisco with an airline and back to Shannon with another airline.

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

    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 San Francisco from Shannon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Shannon to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Shannon to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Shannon to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8945 reviews
7.3Comfort
7.7Boarding
6.7Food
7.1Entertainment
8.1Crew
Airline reviews

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

2.0 MediocreSammy, Jan 2025MCO - SFO
Read more United Airlines reviews

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

We had to wait almost an hour for the wheelchair porter to be ready to pick up my mother. And when she arrived in Newark airport the porter was not there and she started walking with her cane and her poor mobility. When the Newark porter found her they didn't want to transfer her bags to the wheelchair for her.

My experience was medium staff where great I dislike flying in triple 7 seats very uncomfortable and no room on jet all the rest of the flights where great

Great onboard crew. Boarding was a zoo, I got in line before pre boarding in Group 2, still had my bag force checked. WiFi was glitchy all flight. Seat and bathroom are both tiny unless you pay $$$ for first class.

Staff was generally seeming stressed out and was a bit rude and slow. Plane left late. Pilot was very well-spoken.

Cabin was pitch black, even during meal service. The reading lights for seat 2E/F did not work, and seat 2E did not recline.

The seat seemed roomy, the service was good, everything was fine.

Book cheap flights from Shannon to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Shannon to San Francisco found on KAYAK in the last 72 hours.
1/5Thu
3 stops
24h 54mSNN-SFO
€467
13/1Mon
2 stopsAer Lingus
27h 25mSNN-SFO
€533
1/5Thu
2 stops
20h 19mSNN-SFO
€566
23/5Fri
1 stopDelta
16h 07mSNN-SFO
€638
23/5Fri
1 stopDelta
18h 15mSNN-SFO
€639
23/5Fri
2 stopsKLM
19h 13mSNN-SFO
€649
1/5Thu
2 stopsBritish Airways
23h 29mSNN-SFO
€762
31/5Sat
1 stopBritish Airways
14h 10mSNN-SFO
€996
31/5Sat
1 stopUnited Airlines
21h 09mSNN-SFO
€1,027
14/5Wed
2 stopsUnited Airlines
18h 30mSNN-SFO
€2,847

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Last minute flights from Shannon to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Shannon to San Francisco that are departing in the next 10 days.
8/1Wed
multi-stop
41h 48mSNN-SFO
17/1Fri
multi-stop
19h 00mSFO-SNN
€815
8/1Wed
multi-stop
24h 37mSNN-SFO
17/1Fri
multi-stop
14h 15mSFO-SNN
€1,112
8/1Wed
multi-stop
15h 15mSNN-SFO
17/1Fri
multi-stop
14h 15mSFO-SNN
€2,072

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

Information on your arrival and departure airports

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