$153 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 7/8. 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 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
Booking Insights
Flight Deals

Cheap Flights from London to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$290
San Francisco
San Francisco1 stop$259
San Diego
San Diego1 stop$333
San Jose
San Jose2 stops$639
Reno
Reno2 stops$590
Sacramento
Sacramento2 stops$591
Los Angeles
Los Angeles1 stop$290
San Francisco
San Francisco1 stop$259
San Diego
San Diego1 stop$333
San Jose
San Jose2 stops$639
Reno
Reno2 stops$590
Sacramento
Sacramento2 stops$591

Book Cheap London to California Plane Tickets

 
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, May 6 - Wed, May 13
WestJet Logo
6:10 am - 3:45 pm
YXU
-
LAS
12h 35m
2 stops
WestJet Logo
1:20 pm - 5:20 am
LAS
-
YXU
13h 00m
2 stops
$256WestJet
Tue, Mar 10 - Tue, Mar 17
WestJet Logo
8:10 pm - 12:19 pm
YXU
-
LAS
19h 09m
2 stops
WestJet Logo
1:10 pm - 6:35 am
LAS
-
YXU
14h 25m
2 stops
$258WestJet
Wed, Jul 8 - Wed, Jul 29
WestJet Logo
6:10 am - 12:00 pm
YXU
-
SFO
8h 50m
1 stop
WestJet Logo
6:00 am - 4:50 pm
SFO
-
YXU
7h 50m
1 stop
$259WestJet
Tue, Mar 10 - Tue, Mar 17
WestJet Logo
8:10 pm - 12:19 pm
YXU
-
LAS
19h 09m
2 stops
WestJet Logo
7:05 pm - 6:35 am
LAS
-
YXU
8h 30m
1 stop
$260WestJet
Sat, Apr 18 - Mon, Apr 20
Multiple Airlines Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
Multiple Airlines Logo
12:35 pm - 6:35 am
SAN
-
YXU
15h 00m
1 stop
$333Multiple Airlines
Fri, Apr 10 - Wed, Apr 15
Multiple Airlines Logo
7:30 am - 3:01 pm
YXU
-
SAN
34h 31m
2 stops
Multiple Airlines Logo
12:35 pm - 6:35 am
SAN
-
YXU
15h 00m
1 stop
$355Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Air Canada Logo
5:10 am - 1:23 pm
YXU
-
LAX
11h 13m
2 stops
Air Canada Logo
10:55 pm - 8:43 am
LAX
-
YXU
6h 48m
1 stop
$380Air Canada
Sat, Apr 18 - Mon, Apr 20
Air Canada Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
Air Canada Logo
6:20 am - 9:18 pm
SAN
-
YXU
11h 58m
2 stops
$383Air Canada
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
United Airlines Logo
10:30 pm - 5:03 pm
SAN
-
YXU
15h 33m
2 stops
$405United Airlines
Mon, Mar 9 - Thu, Mar 12
United Airlines Logo
5:40 pm - 11:50 am
YXU
-
SAN
21h 10m
2 stops
United Airlines Logo
10:15 pm - 9:21 pm
SAN
-
YXU
20h 06m
2 stops
$408United Airlines
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 $231 (return) on average. On the other hand, the most expensive months are February and December, when the average cost of round-trip tickets is $1,114 and $562 respectively.

Find deals

Good to know

Low seasonJuly
Cheapest flight$153
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 23% 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 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.

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 10717 reviews
6.3Food
6.8Entertainment
7.1Comfort
7.8Crew
7.3Boarding
Airline reviews

The staff was great and made the long trip easy peasy!

10.0 ExcellentRahul, Nov 2025
YYZ - SFO
Read more Air Canada reviews

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

I liked the behaviour of the crew members.The flight was good.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

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

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

Information on your arrival and departure airports

London (YXU)