C$ 218 Find Cheap Flights from London 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 London to California departing on 2/10. 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 California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London 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 London to California, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best California Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stopC$ 382
San Francisco
San Francisco1 stopC$ 380
San Diego
San Diego2 stopsC$ 417
Los Angeles
Los Angeles1 stopC$ 382
San Francisco
San Francisco1 stopC$ 380
San Diego
San Diego2 stopsC$ 417

Cheap Flights from London to California

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London 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 round-trip flight deals from London to California

jue., 18 sep. - lun., 22 sep.
WestJet Logo
6:00 a.m. - 3:01 p.m.YXU-LAS
12h 01m2 stops
WestJet Logo
8:00 a.m. - 7:07 p.m.LAS-YXU
8h 07m1 stop
C$ 367WestJet
Find Deal
jue., 18 sep. - lun., 22 sep.
WestJet Logo
6:00 a.m. - 3:01 p.m.YXU-LAS
12h 01m2 stops
WestJet Logo
1:25 p.m. - 5:12 a.m.LAS-YXU
12h 47m2 stops
C$ 368WestJet
Find Deal
sáb., 16 ago. - sáb., 23 ago.
Air Canada Logo
9:55 a.m. - 9:42 p.m.YXU-LAX
14h 47m2 stops
Air Canada Logo
10:30 p.m. - 3:02 p.m.LAX-YXU
13h 32m2 stops
C$ 394Air Canada
Find Deal
sáb., 16 ago. - sáb., 23 ago.
Air Canada Logo
6:15 a.m. - 12:43 p.m.YXU-LAX
9h 28m1 stop
Air Canada Logo
4:05 p.m. - 9:17 a.m.LAX-YXU
14h 12m1 stop
C$ 399Air Canada
Find Deal
vie., 15 ago. - vie., 22 ago.
 Logo
6:15 a.m. - 10:30 a.m.YXU-LAX
7h 15m1 stop
 Logo
11:25 a.m. - 5:14 a.m.LAX-YXU
14h 49m2 stops
C$ 427
Find Deal
sáb., 16 ago. - sáb., 23 ago.
United Airlines Logo
3:40 p.m. - 9:14 a.m.YXU-SNA
20h 34m3 stops
United Airlines Logo
3:15 p.m. - 3:02 p.m.SNA-YXU
20h 47m2 stops
C$ 446United Airlines
Find Deal
vie., 15 ago. - vie., 22 ago.
 Logo
6:00 a.m. - 1:20 p.m.YXU-SAN
10h 20m1 stop
 Logo
6:15 a.m. - 5:14 a.m.SAN-YXU
19h 59m2 stops
C$ 467
Find Deal
sáb., 16 ago. - sáb., 23 ago.
United Airlines Logo
9:55 a.m. - 9:14 a.m.YXU-SNA
26h 19m2 stops
United Airlines Logo
3:15 p.m. - 3:02 p.m.SNA-YXU
20h 47m2 stops
C$ 495United Airlines
Find Deal
sáb., 11 oct. - vie., 17 oct.
Delta Logo
6:00 a.m. - 11:54 a.m.YXU-SFO
8h 54m1 stop
Delta Logo
7:30 a.m. - 7:07 p.m.SFO-YXU
8h 37m1 stop
C$ 547Delta
Find Deal
vie., 15 ago. - vie., 22 ago.
Delta Logo
6:00 a.m. - 1:20 p.m.YXU-SAN
10h 20m1 stop
Delta Logo
2:05 p.m. - 5:14 a.m.SAN-YXU
12h 09m1 stop
C$ 563Delta
Find Deal
Useful Info

KAYAK's insights & trends for London to California flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 London to California is May, when tickets cost C$ 397 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is C$ 796 and C$ 613 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London 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 the flight from London to California, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.


Good to know

Low seasonFebruary
High seasonJanuary
Cheapest flightC$ 218
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from London to Las Vegas

FAQs - booking California flights

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London 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 London 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 London 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 evening, when round-trip flights cost C$ 346 on average. Morning departures are around 18% more expensive than evening flights, 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 C$ 409.

Reviews of the top 3 airlines serving from London to California

 
See real verified KAYAK customer reviews for airlines flying from London 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 London 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 8861 reviews
7.3Comfort
7.7Boarding
7.0Entertainment
8.1Crew
6.6Food
Airline reviews

Boarded plane and then delayed 1.5 hours while on the plane

4.0 OkayJake, Jul 2025BIH - SFO
Read more United Airlines reviews

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

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

There was a medical emergency that the crew handled very well. There was no “entertainment” of any sort-no movie/music/whatever. Food was typical of airlines: mediocre.

We never had an experience they canceled the flight and they did not offer us an alternative flight. I had to book one on my own expense. They offered us food voucher and we could not use them at the airport it kept saying not attached to an existing flight. The people at the counter were rude and cold and they did not care about our situation

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Found the seats very crowded—too close together ! And waited a long time for our luggage All staff at both ends were excellent!!!

Flight cancelled and Kayak switched our return flight to a red eye. Ridiculous.

Good flight, friendly crew and overall - good service on United Airlines.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

Ensure prepaid food arrangements are appropriately understood by flight crew of who purchased and who did not

Terrible all around. Flight was late and airplane was very uncomfortable. The crew were unhelpful and hid in the back. Did zero work. No entertainment.

I booked and paid extra for exit door seats also pre paid for my luggage air Canada changed plains and I never got what I paid for and they made me pay for luggage again they also did this to my wife. They are the most unorganized company I have ever dealt with. I am sure I will never see the extra money I paid for the seats or the recharge for the luggage. They are subsidized by the taxpayers and don’t give a dam just a horrible way to do business

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Never made this leg of the flight since we rebooked through United instead. Did not make it to immigration/US custom due to the delay. Had to spend the night on our own dime in Toronto

YYZ air Canada security messed up which led to my kids missing their flight and having to go on a separate flight later in the day without the rest of the family. Customer service was horrible and have no sense of urgency or compassion for their customers. They refuse to compensate for their errors and making my kids wait hours in the airport. This isn’t the first time we have had issues with this airline and I won’t be flying with them again.

Cancelled flight had to fight for a hotel voucher and lost my upgrade. Not great business.

Flight attendants were delightful, smiling, anticipating needs, and overall excellent. Pilots kept us informed and made 1 of the best soft landings!

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.