€440 Find Cheap Flights from Shannon to California

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 California departing on 23/5. 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.
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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 California, 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 California, as well as popular online travel agencies
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Best California Flight Deals from Shannon

Cheapest return prices found by our users on KAYAK in the last 72 hours

Los Angeles
Los Angeles1 stop€634
San Francisco
San Francisco1 stop€634
San Diego
San Diego2 stops€764
San Jose
San Jose2 stops€681

Good to know

Low season

March

High season

June

Cheapest flight

€440
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Shannon to San Francisco

FAQs - booking California flights

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

    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 California.

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

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

    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 California 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 California?

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

See more FAQs

Top tips for finding cheap flights to California

  • High season is considered to be June, July and August. The cheapest month to fly from Shannon is March.

Top airlines flying from Shannon to California

 
See real verified KAYAK customer reviews for airlines flying from Shannon to California. 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 California? 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 8771 reviews
6.7Food
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

2.0 MediocreShawn, Feb 2025ATL - SFO
Read more United Airlines reviews

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

I feel bad, but Swiss airlines is not an airlines I will ever fly again. Their cabins are basic, seats are extremely uncomfortable, crew is a hit or a miss with service. What's worse is how they make you feel they are there to make money and not make your travel needs be met or make your travel a pleasure. They charge for 2nd bags, seat selection and felt like a budget arinines frontier/spirit airline attitude and approach. Their business class is from the early 2000s, basic. Additionally, planes going to India, are old, falling apart and not maintained. Even the crew mentioned this is typical of the airline having older planes going to India. Panels detached and loose or stuck with duct tape, seats scruffed up and dirty, seatbelts roughed up. The scariest thing was when I saw a window panel next to where I was sitting loose and dangling. The crew mentioned it's only cosmetic and assured the integrity of the plane was inspected by the maintenance crew. This is where they confessed about planes going to India being old. I UNFORTUNATELY would NOT recommend Swiss airlines to anyone and will NEVER fly with them again!

The ANA crew and their members were all extremely nice and caring. Shout out to the crews for working on Christmas and New Years. Y'all the real MVP

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.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

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! 🤛🏽💗

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Lost my luggage in London Was double charged for luggage

Boarding could have been better organized. The one member of staff disappeared for a while so boarding by group relied on honesty.

I never made this flight but the staff helped to get me rebooked (see previous review)

No land services during boarding, specially while moving from terminal to another

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

Book cheap flights from Shannon to California

Recent return flight deals

 
These are the cheapest return flights from Shannon to California found on KAYAK in the last 72 hours.
28/5Wed
1 stopUnited Airlines
34h 08mSNN-LAS
31/5Sat
2 stopsUnited Airlines
22h 31mLAS-SNN
€580
28/5Wed
2 stopsUnited Airlines
18h 15mSNN-LAS
1/6Sun
1 stopUnited Airlines
16h 30mLAS-SNN
€581
4/4Fri
2 stopsAmerican Airlines
18h 05mSNN-LAS
8/4Tue
2 stopsAmerican Airlines
15h 18mLAS-SNN
€619
4/4Fri
2 stopsAmerican Airlines
18h 05mSNN-LAS
8/4Tue
2 stopsAmerican Airlines
15h 18mLAS-SNN
€620
5/4Sat
1 stopLufthansa
16h 19mSNN-LAX
9/4Wed
1 stopLufthansa
19h 15mLAX-SNN
€634
7/4Mon
1 stop
17h 11mSNN-SFO
14/4Mon
1 stop
12h 55mSFO-SNN
€634
7/4Mon
1 stopLufthansa
17h 11mSNN-SFO
13/4Sun
2 stopsLufthansa
27h 40mSFO-SNN
€635
7/3Fri
1 stopBritish Airways
26h 55mSNN-SFO
11/3Tue
1 stopBritish Airways
17h 55mSFO-SNN
€677
7/3Fri
2 stopsBritish Airways
30h 00mSNN-SFO
11/3Tue
2 stopsBritish Airways
18h 25mSFO-SNN
€704
8/4Tue
2 stops
19h 48mSNN-SAN
15/4Tue
1 stop
18h 00mSAN-SNN
€764

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Shannon to California found on KAYAK in the last 72 hours.
23/5Fri
3 stops
43h 15mSNN-SFO
€440
23/5Fri
2 stopsAer Lingus
26h 30mSNN-SFO
€521
14/8Thu
3 stops
47h 30mSNN-LAX
€541
12/6Thu
1 stop
24h 35mSNN-SFO
€624
23/5Fri
1 stopDelta
18h 15mSNN-SFO
€640
1/8Fri
2 stopsAer Lingus
29h 10mSNN-LAX
€670
14/8Thu
1 stopDelta
29h 07mSNN-LAX
€769
12/6Thu
3 stopsUnited Airlines
22h 00mSNN-SFO
€1,030
23/5Fri
3 stopsUnited Airlines
22h 00mSNN-SFO
€1,032
14/8Thu
2 stopsLufthansa
37h 26mSNN-SNA
€1,203

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Everything you need to know for your flight from Shannon to California

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