$160 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 10/2. 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

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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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 stop$280
San Francisco
San Francisco1 stop$279
San Diego
San Diego2 stops$306
Los Angeles
Los Angeles1 stop$280
San Francisco
San Francisco1 stop$279
San Diego
San Diego2 stops$306

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

Thu, Sep 18 - Mon, Sep 22
WestJet Logo
6:00 am - 3:01 pmYXU-LAS
12h 01m2 stops
WestJet Logo
8:00 am - 7:07 pmLAS-YXU
8h 07m1 stop
$269WestJet
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Thu, Sep 18 - Mon, Sep 22
WestJet Logo
6:00 am - 3:01 pmYXU-LAS
12h 01m2 stops
WestJet Logo
1:25 pm - 5:12 amLAS-YXU
12h 47m2 stops
$270WestJet
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Sat, Aug 16 - Sat, Aug 23
Air Canada Logo
9:55 am - 9:42 pmYXU-LAX
14h 47m2 stops
Air Canada Logo
10:30 pm - 3:02 pmLAX-YXU
13h 32m2 stops
$289Air Canada
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Sat, Aug 16 - Sat, Aug 23
Air Canada Logo
6:15 am - 12:43 pmYXU-LAX
9h 28m1 stop
Air Canada Logo
4:05 pm - 9:17 amLAX-YXU
14h 12m1 stop
$293Air Canada
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Fri, Aug 15 - Fri, Aug 22
Logo
6:15 am - 10:30 amYXU-LAX
7h 15m1 stop
Logo
11:25 am - 5:14 amLAX-YXU
14h 49m2 stops
$313
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Sat, Aug 16 - Sat, Aug 23
United Airlines Logo
3:40 pm - 9:14 amYXU-SNA
20h 34m3 stops
United Airlines Logo
3:15 pm - 3:02 pmSNA-YXU
20h 47m2 stops
$327United Airlines
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Fri, Aug 15 - Fri, Aug 22
Logo
6:00 am - 1:20 pmYXU-SAN
10h 20m1 stop
Logo
6:15 am - 5:14 amSAN-YXU
19h 59m2 stops
$343
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Sat, Aug 16 - Sat, Aug 23
United Airlines Logo
9:55 am - 9:14 amYXU-SNA
26h 19m2 stops
United Airlines Logo
3:15 pm - 3:02 pmSNA-YXU
20h 47m2 stops
$363United Airlines
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Sat, Oct 11 - Fri, Oct 17
Delta Logo
6:00 am - 11:54 amYXU-SFO
8h 54m1 stop
Delta Logo
7:30 am - 7:07 pmSFO-YXU
8h 37m1 stop
$401Delta
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Fri, Aug 15 - Fri, Aug 22
Delta Logo
6:00 am - 1:20 pmYXU-SAN
10h 20m1 stop
Delta Logo
2:05 pm - 5:14 amSAN-YXU
12h 09m1 stop
$413Delta
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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 $291 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is $584 and $450 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.

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Good to know

Low seasonFebruary
High seasonJanuary
Cheapest flight$160
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 8% increase in price.
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 travelers 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 morning, when round-trip flights cost $446 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 $446.

Reviews of the top airline 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.
7.1
Air CanadaOverall score based on 9681 reviews
7.1Comfort
7.8Crew
7.3Boarding
6.8Entertainment
6.3Food
Airline reviews

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

8.0 ExcellentAnonymous, Jun 2025YVR - LAX
Read more Air Canada reviews

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

London (YXU)

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