C$ 241 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 3/10. 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
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Flight 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 Angeles2 stopsC$ 517
San Francisco
San Francisco1 stopC$ 430
San Jose
San Jose2 stopsC$ 954
Los Angeles
Los Angeles2 stopsC$ 517
San Francisco
San Francisco1 stopC$ 430
San Jose
San Jose2 stopsC$ 954

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

Wed, 10 Sep - Tue, 23 Sep
WestJet Logo
6:00 a.m. - 11:54 a.m.YXU-SFO
8h 54m1 stop
WestJet Logo
7:30 a.m. - 7:07 p.m.SFO-YXU
8h 37m1 stop
C$ 430WestJet
Find Deal
Tue, 16 Sep - Tue, 23 Sep
 Logo
8:00 p.m. - 9:30 a.m.YXU-SFO
16h 30m2 stops
 Logo
10:15 a.m. - 5:12 a.m.SFO-YXU
15h 57m2 stops
C$ 447
Find Deal
Wed, 10 Sep - Tue, 23 Sep
WestJet Logo
6:00 a.m. - 11:54 a.m.YXU-SFO
8h 54m1 stop
WestJet Logo
7:30 a.m. - 7:07 p.m.SFO-YXU
8h 37m1 stop
C$ 451WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct
WestJet Logo
6:00 a.m. - 8:21 p.m.YXU-LAS
17h 21m2 stops
WestJet Logo
6:20 p.m. - 5:12 a.m.LAS-YXU
7h 52m1 stop
C$ 452WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct
WestJet Logo
6:00 a.m. - 8:21 p.m.YXU-LAS
17h 21m2 stops
WestJet Logo
1:25 p.m. - 5:12 a.m.LAS-YXU
12h 47m2 stops
C$ 455WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct
WestJet Logo
6:00 a.m. - 9:29 p.m.YXU-LAS
18h 29m1 stop
WestJet Logo
6:20 p.m. - 5:12 a.m.LAS-YXU
7h 52m1 stop
C$ 456WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct
Air Canada Logo
6:15 a.m. - 3:58 p.m.YXU-LAS
12h 43m2 stops
Air Canada Logo
7:25 a.m. - 9:27 p.m.LAS-YXU
11h 02m2 stops
C$ 502Air Canada
Find Deal
Wed, 10 Sep - Tue, 23 Sep
Air Canada Logo
3:50 p.m. - 8:53 p.m.YXU-SFO
8h 03m1 stop
Air Canada Logo
4:35 p.m. - 9:19 a.m.SFO-YXU
13h 44m2 stops
C$ 538Air Canada
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Sat, 4 Oct - Fri, 10 Oct
United Airlines Logo
6:15 a.m. - 4:18 p.m.YXU-LAS
13h 03m2 stops
United Airlines Logo
12:59 a.m. - 3:02 p.m.LAS-YXU
11h 03m2 stops
C$ 603United Airlines
Find Deal
Sat, 4 Oct - Fri, 10 Oct
United Airlines Logo
3:40 p.m. - 12:15 a.m.YXU-LAS
11h 35m2 stops
United Airlines Logo
12:59 a.m. - 3:02 p.m.LAS-YXU
11h 03m2 stops
C$ 605United Airlines
Find Deal
Booking Insights

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 June, when tickets cost C$ 320 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is C$ 712 and C$ 609 respectively.

Good to know

Low seasonFebruary
Cheapest flightC$ 241
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from London to San Francisco

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 flying 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 8930 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
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

No dogs! Can we have no dogs in the cabin? Why was there a yappy little dog behind me? Lucky I had ear plugs. Sorry for others without

In spite of purchasing premium, I felt it was perhaps the most uncomfortable seat I have flown in. The base was either broken or poorly made and had no support. Even placing pillows and blankets on the seat (1D aisle) didn’t help. It made for a long and mostly sleepless six hour flight. Crew also were very loudly talking to each other through the night making it very hard to sleep. It was purchased for the price, so I get the risk, but was not impressed.

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Arrival at Comox from, London,ON 6 hours later... No bueano

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.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

Terrible, return flight was cancelled a night before the flight was scheduled to depart and I was notified by an email and an automated message on their phone line. I’ll never book Air Canada again

Horrible, we were on a little DeHaviland 400 that was really small and shaky. I am 5' 4" and I had to duck my head to get in it felt like an old war plane.

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.

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

Information on your arrival and departure airports

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