€349 Find Cheap Flights from Shannon to San Francisco Bay Area

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 Bay Area departing on 12/11. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco Bay Area

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to San Francisco Bay Area, 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 Bay Area, as well as popular online travel agencies
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Flight Deals

Best San Francisco Bay Area Flight Deals from Shannon

Cheapest return prices found by our users on KAYAK in the last 72 hours
San Francisco
San Francisco2 stops€507
San Jose
San Jose2 stops€623
San Francisco
San Francisco2 stops€507
San Jose
San Jose2 stops€623

Cheap Flights from Shannon to San Francisco Bay Area

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

Thu, 2 Oct - Tue, 7 Oct
United Airlines Logo
12:30 - 23:59SNN-SFO
19h 29m2 stops
United Airlines Logo
10:35 - 10:15SFO-SNN
15h 40m1 stop
€507United Airlines
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Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
07:50 - 15:00SNN-SFO
15h 10m1 stop
American Airlines Logo
13:25 - 16:45SFO-SNN
20h 20m2 stops
€618American Airlines
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Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
07:50 - 15:00SNN-SFO
15h 10m1 stop
American Airlines Logo
07:26 - 16:45SFO-SNN
26h 19m2 stops
€619American Airlines
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Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
07:50 - 21:00SNN-SFO
21h 10m2 stops
American Airlines Logo
13:33 - 16:45SFO-SNN
20h 12m2 stops
€622American Airlines
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Tue, 11 Nov - Thu, 20 Nov
Aer Lingus Logo
20:05 - 15:35SNN-SFO
27h 30m2 stops
Aer Lingus Logo
10:19 - 19:25SFO-SNN
25h 06m2 stops
€623Aer Lingus
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Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
07:50 - 20:45SNN-SJC
20h 55m2 stops
American Airlines Logo
14:36 - 16:45SJC-SNN
19h 09m2 stops
€623American Airlines
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Sat, 1 Nov - Sat, 8 Nov
British Airways Logo
07:50 - 20:42SNN-SFO
19h 52m2 stops
British Airways Logo
17:00 - 16:45SFO-SNN
15h 45m2 stops
€625British Airways
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Fri, 31 Oct - Fri, 7 Nov
British Airways Logo
20:05 - 20:28SNN-SFO
31h 23m2 stops
British Airways Logo
15:30 - 15:45SFO-SNN
16h 15m2 stops
€629British Airways
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Fri, 31 Oct - Fri, 7 Nov
Multiple Airlines Logo
07:50 - 15:40SNN-SFO
14h 50m1 stop
Multiple Airlines Logo
16:30 - 15:45SFO-SNN
15h 15m1 stop
€633Multiple Airlines
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Sat, 27 Dec - Sat, 17 Jan
Aer Lingus Logo
07:50 - 15:00SNN-SFO
15h 10m1 stop
Aer Lingus Logo
20:40 - 11:30SFO-SNN
30h 50m1 stop
€678Aer Lingus
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Booking Insights

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

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

Can I save money by flying with a stopover from Shannon to San Francisco Bay Area?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €443, prices are generally cheapest when you fly direct.

Good to know

Low seasonMarch
Cheapest flight€349
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Shannon to San Francisco

FAQs - booking San Francisco Bay Area flights

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

    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 Bay Area.

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

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

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

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

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

  • What is the cheapest time of day to fly to San Francisco Bay Area?

    The cheapest time of day to fly to San Francisco Bay Area is generally in the morning, when retur flights cost €706 on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the morning, which is peak travel time and where the average cost of a ticket is €706.

Reviews of the top airline flying from Shannon to San Francisco Bay Area

 
See real verified KAYAK customer reviews for airlines flying from Shannon to San Francisco Bay Area. 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 Bay Area? 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 8926 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

The flight was comfortable with the exit row and great service

10.0 ExcellentMark, Aug 2025HNL - LAX
Read more United Airlines reviews

The flight was comfortable with the exit row and great service

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Ok. Get a different kosher caterer. The food was odd.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Everything you need to know for your flight to San Francisco Bay Area

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