€361 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 5/2. 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, 0 bags

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

 
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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41.299.237 searches in the past 7 days on KAYAK

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Flight Deals

Best California Flight Deals from Shannon

Cheapest return prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles2 stops€546
San Francisco
San Francisco2 stops€617
San Diego
San Diego2 stops€714
Los Angeles
Los Angeles2 stops€546
San Francisco
San Francisco2 stops€617
San Diego
San Diego2 stops€714

Cheap Flights from Shannon to California

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

Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
20:05 - 15:15
SNN
-
LAS
27h 10m1 stop
British Airways Logo
15:20 - 16:45
LAS
-
SNN
17h 25m2 stops
€521British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
07:50 - 21:48
SNN
-
LAS
21h 58m2 stops
British Airways Logo
15:20 - 16:45
LAS
-
SNN
17h 25m2 stops
€526British Airways
Thu, 22 Jan - Mon, 26 Jan
American Airlines Logo
07:50 - 18:50
SNN
-
LAS
19h 00m1 stop
American Airlines Logo
15:20 - 16:45
LAS
-
SNN
17h 25m2 stops
€542American Airlines
Thu, 22 Jan - Mon, 26 Jan
American Airlines Logo
07:50 - 18:50
SNN
-
LAS
19h 00m1 stop
American Airlines Logo
10:07 - 11:30
LAS
-
SNN
41h 23m2 stops
€544American Airlines
Mon, 9 Feb - Mon, 16 Feb
Multiple Airlines Logo
19:55 - 13:10
SNN
-
LAX
25h 15m2 stops
Multiple Airlines Logo
16:35 - 18:55
LAX
-
SNN
18h 20m1 stop
€546Multiple Airlines
Thu, 29 Jan - Mon, 2 Feb
Multiple Airlines Logo
20:05 - 21:00
SNN
-
LAS
32h 55m2 stops
Multiple Airlines Logo
11:57 - 16:45
LAS
-
SNN
20h 48m2 stops
€591Multiple Airlines
Mon, 9 Feb - Mon, 16 Feb
Aer Lingus Logo
07:50 - 18:30
SNN
-
LAX
18h 40m1 stop
Aer Lingus Logo
18:00 - 11:30
LAX
-
SNN
33h 30m1 stop
€641Aer Lingus
Fri, 15 May - Tue, 26 May
United Airlines Logo
12:30 - 21:31
SNN
-
SFO
17h 01m2 stops
United Airlines Logo
10:25 - 10:15
SFO
-
SNN
15h 50m2 stops
€651United Airlines
Fri, 15 May - Tue, 26 May
United Airlines Logo
12:30 - 23:59
SNN
-
SFO
19h 29m2 stops
United Airlines Logo
05:20 - 07:30
SFO
-
SNN
18h 10m1 stop
€654United Airlines
Mon, 9 Feb - Mon, 16 Feb
Aer Lingus Logo
17:30 - 15:00
SNN
-
SFO
29h 30m1 stop
Aer Lingus Logo
20:40 - 11:30
SFO
-
SNN
30h 50m1 stop
€699Aer Lingus
Booking Insights

KAYAK's insights & trends for Shannon to California flights

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

Which airlines fly direc between Shannon and California?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Shannon to California.

There is just one airline that flies from Shannon to California direct and that is United Airlines. The best return deal found from United Airlines for the route is to Los Angeles (LAX) and costs €524.

Which airlines provide the cheapest flights from Shannon to California?

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 California were found on British Airways (€521) and American Airlines (€542).

Find deals

Good to know

Low seasonMay
Cheapest flight€361
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly and prices are also 21% lower 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.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally in the morning, when retur flights cost €666 on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is €666.

Reviews of the top airline 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 9094 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Flight was late - I was downgraded from first class to coach

2.0 MediocreMukund, Dec 2025
DEN - SFO
Read more United Airlines reviews

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

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

Information on your arrival and departure airports

Shannon (SNN)