€302 Find Cheap Flights to California – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to California departing on 1/9. 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

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Best California Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angelesdirect€634
San Francisco
San Francisco1 stop€470
San Diego
San Diego1 stop€606
San Jose
San Jose1 stop€598
Palm Springs
Palm Springs2 stops€602
Los Angeles
Los Angelesdirect€634
San Francisco
San Francisco1 stop€470
San Diego
San Diego1 stop€606
San Jose
San Jose1 stop€598
Palm Springs
Palm Springs2 stops€602

Book Cheap California Plane Tickets

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

Thu, 19 Nov - Fri, 4 Dec
Scandinavian Airlines Logo
19:05 - 14:50
DUB
-
SFO
27h 45m
1 stop
Scandinavian Airlines Logo
16:45 - 09:25
SFO
-
DUB
32h 40m
1 stop
€470Scandinavian Airlines
Fri, 6 Nov - Sun, 15 Nov
Scandinavian Airlines Logo
10:55 - 14:50
DUB
-
SFO
35h 55m
2 stops
Scandinavian Airlines Logo
16:45 - 11:45
SFO
-
DUB
35h 00m
2 stops
€475Scandinavian Airlines
Fri, 6 Nov - Sun, 15 Nov
Scandinavian Airlines Logo
18:55 - 14:50
DUB
-
SFO
27h 55m
2 stops
Scandinavian Airlines Logo
16:45 - 11:45
SFO
-
DUB
35h 00m
1 stop
€477Scandinavian Airlines
Sun, 30 Aug - Sun, 6 Sep
United Airlines Logo
09:30 - 14:44
SNN
-
LAS
13h 14m
1 stop
United Airlines Logo
12:34 - 10:15
LAS
-
SNN
13h 41m
1 stop
€570United Airlines
Sat, 18 Jul - Thu, 23 Jul
JetBlue Logo
11:30 - 21:11
DUB
-
RNO
17h 41m
1 stop
JetBlue Logo
07:48 - 09:00
RNO
-
DUB
17h 12m
1 stop
€576JetBlue
Sat, 22 Aug - Sat, 29 Aug
JetBlue Logo
11:30 - 21:59
DUB
-
ONT
18h 29m
1 stop
JetBlue Logo
23:13 - 09:00
ONT
-
DUB
25h 47m
1 stop
€591JetBlue
Mon, 24 Aug - Tue, 1 Sep
British Airways Logo
20:30 - 19:30
DUB
-
PSP
31h 00m
2 stops
British Airways Logo
12:44 - 18:50
PSP
-
DUB
22h 06m
2 stops
€604British Airways
Mon, 4 Jan - Thu, 14 Jan
Aer Lingus Logo
15:20 - 18:30
DUB
-
LAX
11h 10mdirect
Aer Lingus Logo
20:15 - 14:30
LAX
-
DUB
10h 15mdirect
€634Aer Lingus
Sat, 7 Nov - Sat, 28 Nov
British Airways Logo
07:50 - 21:42
SNN
-
LAS
21h 52m
2 stops
British Airways Logo
20:55 - 19:25
LAS
-
SNN
14h 30m
1 stop
€662British Airways
Thu, 27 Aug - Thu, 3 Sep
United Airlines Logo
09:30 - 18:41
SNN
-
LAS
17h 11m
1 stop
United Airlines Logo
10:25 - 10:15
LAS
-
SNN
15h 50m
1 stop
€663United Airlines
Booking Insights

KAYAK's insights & trends for flights to California

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

What is the cheapest flight to California?

These are the best return prices found by users searching on KAYAK in the last 5 days.

The cheapest ticket to California from Ireland found in the last 5 days was to San Francisco, at €554 return. The most popular route is Dublin (DUB) to Los Angeles (LAX) and the cheapest return ticket found on this route in the last 5 days was €691.

What is the cheapest month to fly from Ireland to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to California, 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 Ireland to California is January, when tickets cost €226 (return) on average. On the other hand, the most expensive months are September and July, when the average cost of round-trip tickets is €4,545 and €1,292 respectively.

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

The average price for all round-trip flights from Ireland to California depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to California is generally in the evening, when retur flights cost €668 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is €668.

How far in advance should I book a flight from Ireland to California?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to California, 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 a flight from Ireland to California, you should book around 2 weeks before departure, which saves you about 8% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Which is the cheapest airport to fly into in California?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in California is San Francisco Airport (SFO), with an average flight price of €1,113.

Good to know

Low seasonJanuary
Cheapest flight€302
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Dublin to Las Vegas

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from Ireland 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 Ireland to California.

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

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

    Based on KAYAK data, the cheapest day to fly to California is Wednesday when return tickets can be as cheap as €587. On the other hand, the most expensive day to fly is Monday, when return prices are €743 on average.

Top tips for finding cheap flights to California

  • Looking for cheap airfare to California? 25% of our users found return tickets to California for the following prices or less: From Dublin €796
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest California flight deals.

Reviews of the top 5 airlines flying to California

 
See real verified KAYAK customer reviews for airlines flying to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to California. 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 Ireland 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 9955 reviews
7.3Comfort
8.1Crew
6.7Food
7.7Boarding
7.1Entertainment
Airline reviews

Monitor control didn’t work & couldn’t figure out how to lay bed flat so I slept very poorly. Cabin was very cold

8.0 ExcellentMichael, Jul 2026
NRT - LAX
Read more United Airlines reviews

Monitor control didn’t work & couldn’t figure out how to lay bed flat so I slept very poorly. Cabin was very cold

Excellent flight. On time. Great staff. Clean and crisp cabin.

The airline was fine, but I did want to share about Kayak's error through Underpricer. The original booking was purchased with ANA, and Kayak booked it with United. This is a mistake that should not be happening, since the price I paid was with ANA and that was my preference. I appreciate the efforts done to make this right by paying for the seat preference, but sitting in the back of the airplane under economy is not enough to make this error right. ANA Airlines was the experience I wanted considering this was a life time experience that my family and I wanted to have as part of our Japanese experience. Please work on your affiliation with Underpricer to make the right bookings that the customer pays for. In my situation, I could of paid less for a United ticket versus my original payment with ANA Airlines.

The Manila airport was under renovation so there was no business class lounge. The double security check was disorganized and the flight attendants were grouchy.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Flight attendants on United are the worst in the business. Can’t be bothered to provide even basic levels of service and are as rude as anyone can get. This flight was not an exception to that rule.

Friendly crew, but we were delayed for more than an hour and had to change planes due to maintenance issues.

United has been holding my money for a cancel on another ticket they wouldn’t let me fly for going on 5 months. Terrible service I wouldn’t choose to buy tickets or fly with united again. Very bad experience generally dishonorable and poor service .

The flight got delayed. They forgot to bring the drinks when I asked for it. The toilet is messy.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

On time, only a little turbulence, very competent and caring attendants. Clear information.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

The seats needs to be comfortables, at least please add more padding to the seats.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

The plane was up-to-date, and the free wi-fi was very much appreciated! All of the ports functioned well, and the entertainment choices made the flight much more enjoyable. One of the flight attendants was unfriendly, but the flight was enjoyable overall.

The food was good. I almost didn't get a seat on the flight unless I agreed to sit in emergency exit.

I got bumped by Qantas to American Airlines incurring a 6 hr layover at lax. I was not happy

The flight attendant was very polite and attentive. The food was good.

I had a comfortable and enjoyable experience. The entertainment options were plentiful, the food was appetizing, the snacks were tasty, and the staff was friendly, professional, and helpful.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

This was my first flight on Aer Lingus and it was great. The plane wasn't full so I could move to a seat with extra room. The food was pretty good for airline food and the staff was nice and attentive. I enjoyed the media provided during my 10 hour flight. We arrived home early and it's always good to be home!

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

The seat when "flat" was not flat and pad was too thin to cover it.

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

All airline travel outside of First or Business class is an ordeal to be endured. This trip was ok, small o, small k.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

Generally very good. I think their service is better than some other big names I used to travel with. Their food variety is second to none - and you can place order beforehand. Their seating design is a bit awkward for service, I'd say. Flight attendants must be tall enough - long legs and arms - to reach the window seat passenger while crossing over the isle passenger. Also appreciated the variety on entertainment.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

Horrible, the plane is just old and junky...Filthy restroom, seat was as hard as rock. The food, mystery side dish, inedible..geez..just Horrible. Never flying BA again

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything you need to know for your flight to California

Cabin class types available on flights to California

Cabin classes available on flights to California. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.