C$ 276 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 19/2. 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, 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

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$ 399
San Francisco
San Francisco2 stopsC$ 496
San Diego
San Diego2 stopsC$ 651
Palm Springs
Palm Springs2 stopsC$ 608
San Jose
San Jose2 stopsC$ 1,004
Los Angeles
Los Angeles1 stopC$ 399
San Francisco
San Francisco2 stopsC$ 496
San Diego
San Diego2 stopsC$ 651
Palm Springs
Palm Springs2 stopsC$ 608
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

Fri, 16 Jan - Sun, 25 Jan
WestJet Logo
7:30 a.m. - 10:03 p.m.YXU-LAX
17h 33m1 stop
WestJet Logo
7:00 a.m. - 7:12 p.m.LAX-YXU
9h 12m1 stop
C$ 399WestJet
Find Deal
Fri, 16 Jan - Sun, 25 Jan
WestJet Logo
7:30 a.m. - 10:03 p.m.YXU-LAX
17h 33m1 stop
WestJet Logo
7:00 a.m. - 7:12 p.m.LAX-YXU
9h 12m1 stop
C$ 401WestJet
Find Deal
Thu, 20 Nov - Fri, 28 Nov
Air Canada Logo
5:40 p.m. - 10:31 p.m.YXU-LAS
7h 51m1 stop
Air Canada Logo
11:30 p.m. - 8:46 a.m.LAS-YXU
6h 16m1 stop
C$ 412Air Canada
Find Deal
Fri, 16 Jan - Sun, 25 Jan
WestJet Logo
7:30 a.m. - 10:03 p.m.YXU-LAX
17h 33m1 stop
WestJet Logo
11:50 a.m. - 6:34 a.m.LAX-YXU
15h 44m2 stops
C$ 412WestJet
Find Deal
Fri, 16 Jan - Sun, 25 Jan
WestJet Logo
7:30 a.m. - 7:50 p.m.YXU-LAX
15h 20m2 stops
WestJet Logo
7:00 a.m. - 7:12 p.m.LAX-YXU
9h 12m1 stop
C$ 413WestJet
Find Deal
Sat, 22 Nov - Fri, 28 Nov
Air Canada Logo
9:25 a.m. - 8:49 p.m.YXU-LAS
14h 24m2 stops
Air Canada Logo
11:30 p.m. - 8:46 a.m.LAS-YXU
6h 16m1 stop
C$ 419Air Canada
Find Deal
Sat, 22 Nov - Mon, 1 Dec
United Airlines Logo
9:25 a.m. - 11:15 p.m.YXU-LAS
16h 50m3 stops
United Airlines Logo
12:59 a.m. - 5:05 p.m.LAS-YXU
13h 06m2 stops
C$ 522United Airlines
Find Deal
Fri, 16 Jan - Sat, 24 Jan
United Airlines Logo
9:25 a.m. - 3:17 p.m.YXU-LAX
8h 52m1 stop
United Airlines Logo
12:40 a.m. - 5:05 p.m.LAX-YXU
13h 25m2 stops
C$ 545United Airlines
Find Deal
Mon, 16 Feb - Thu, 5 Mar
Multiple Airlines Logo
8:10 p.m. - 9:30 a.m.YXU-SFO
16h 20m2 stops
Multiple Airlines Logo
1:00 p.m. - 6:35 a.m.SFO-YXU
14h 35m1 stop
C$ 549Multiple Airlines
Find Deal
Tue, 17 Feb - Thu, 5 Mar
Multiple Airlines Logo
8:10 p.m. - 5:51 p.m.YXU-SFO
24h 41m2 stops
Multiple Airlines Logo
1:00 p.m. - 6:35 a.m.SFO-YXU
14h 35m1 stop
C$ 563Multiple 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$ 324 (return) on average. On the other hand, the most expensive months are October and December, when the average cost of round-trip tickets is C$ 856 and C$ 660 respectively.

Good to know

Low seasonJuly
Cheapest flightC$ 276
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 4% 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$ 485 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$ 573.

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 8995 reviews
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

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.

10.0 ExcellentSandra, Oct 2025FCO - SFO
Read more United Airlines reviews

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

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

I understand that the food on the airplane wouldn’t be fantastic. However, it wasn’t good at all. 😭

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The flight was comfortable with the exit row and great service

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 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.

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

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

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

Information on your arrival and departure airports

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