C$ 212 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 28/1. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% 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.

Flight Deals
Booking Insights
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$ 391
San Francisco
San Francisco1 stopC$ 409
San Diego
San Diego3 stopsC$ 440
Palm Springs
Palm Springs2 stopsC$ 327
San Jose
San Jose2 stopsC$ 1,004
Los Angeles
Los Angeles2 stopsC$ 391
San Francisco
San Francisco1 stopC$ 409
San Diego
San Diego3 stopsC$ 440
Palm Springs
Palm Springs2 stopsC$ 327
San Jose
San Jose2 stopsC$ 1,004

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

Tue, 3 Mar - Tue, 10 Mar
WestJet Logo
8:10 p.m. - 12:26 p.m.
YXU
-
PSP
19h 16m2 stops
WestJet Logo
1:20 p.m. - 6:35 a.m.
PSP
-
YXU
14h 15m2 stops
C$ 327WestJet
Tue, 3 Mar - Tue, 10 Mar
WestJet Logo
8:10 p.m. - 5:13 p.m.
YXU
-
PSP
24h 03m1 stop
WestJet Logo
6:00 p.m. - 6:35 a.m.
PSP
-
YXU
9h 35m1 stop
C$ 332WestJet
Tue, 3 Mar - Tue, 10 Mar
WestJet Logo
8:10 p.m. - 9:35 a.m.
YXU
-
PSP
16h 25m2 stops
WestJet Logo
6:00 p.m. - 6:35 a.m.
PSP
-
YXU
9h 35m1 stop
C$ 340WestJet
Thu, 8 Jan - Sun, 11 Jan
WestJet Logo
8:10 p.m. - 7:50 p.m.
YXU
-
LAX
26h 40m2 stops
WestJet Logo
5:45 p.m. - 6:34 a.m.
LAX
-
YXU
9h 49m1 stop
C$ 391WestJet
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
5:10 a.m. - 10:32 a.m.
YXU
-
LAX
8h 22m1 stop
Air Canada Logo
10:55 p.m. - 8:46 a.m.
LAX
-
YXU
6h 51m1 stop
C$ 405Air Canada
Thu, 22 Jan - Mon, 2 Feb
Multiple Airlines Logo
8:10 p.m. - 12:12 p.m.
YXU
-
SFO
19h 02m1 stop
Multiple Airlines Logo
8:42 p.m. - 6:35 a.m.
SFO
-
YXU
30h 53m2 stops
C$ 409Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
5:10 a.m. - 10:32 a.m.
YXU
-
LAX
8h 22m1 stop
Air Canada Logo
6:10 p.m. - 8:46 a.m.
LAX
-
YXU
11h 36m2 stops
C$ 412Air Canada
Thu, 22 Jan - Mon, 2 Feb
Multiple Airlines Logo
8:10 p.m. - 12:12 p.m.
YXU
-
SFO
19h 02m1 stop
Multiple Airlines Logo
8:42 p.m. - 6:35 a.m.
SFO
-
YXU
30h 53m2 stops
C$ 438Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
United Airlines Logo
5:10 a.m. - 10:54 a.m.
YXU
-
SFO
8h 44m1 stop
United Airlines Logo
8:49 a.m. - 9:21 p.m.
SFO
-
YXU
9h 32m1 stop
C$ 479United Airlines
Fri, 30 Jan - Fri, 6 Feb
United Airlines Logo
9:50 a.m. - 8:10 p.m.
YXU
-
SFO
13h 20m2 stops
United Airlines Logo
9:20 p.m. - 5:05 p.m.
SFO
-
YXU
16h 45m2 stops
C$ 486United 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.

How much is a round-trip flight from London, Ontario to California?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London, Ontario to California departing in January.

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$ 318 (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$ 803 and C$ 628 respectively.

Good to know

Low seasonJuly
Cheapest flightC$ 212
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly (2% more expensive 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$ 477 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$ 564.

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 9092 reviews
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

6.0 GoodSue, Dec 2025
SJO - SFO
Read more United Airlines reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

Great seats, super comfortable, but no in flight entertainment which was a let down

Airplane is too small. Crew, especially the flight attendant who looked after our area, was not at all friendly and a touch authoratative. She may have been the most gruff flight attendant i've come across in 40 years of business travel

I when to Jamaica for my dad funeral and I did not get my luggage from westjet . I add to buy clothes putting me financial debt i did no want to be in Westjet did not call me to apologize are to inquire about my luggage I am still angry about it

Ground staff was not helpful, but staff at the business counter were excellent.

I selected "carry-on" for a round trip on Kayak, but my return flight on WestJet did not include a carry-on and they would not allow me to add one. My only option was to add a "checked bag" which I had to wait for on the luggage carousel after landing. Not a good experience.

We landed 26 min early. It was awesome! Smooth ride too.

There is no snack and nit much that would be considered gluten free in yiur food selections. One of your snacks should be a gluten free cookie or small bar etc. maybe it was me but I didn’t see any free movies just internet connection and YouTube .

I like how spacious the plane was but I did not like the fact that there was no entertainment

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 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