$411 Find Cheap Flights from the United Kingdom to California

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These are the airlines KAYAK users have selected most often from within our search results for flights to California
These are the airlines KAYAK users have selected most often from within our search results for flights to California
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Booking Insights

KAYAK's insights & trends for flights to California

Get data-powered insights and trends for flights to California to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to California?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to California from the United Kingdom found in the last 72 hours was to Los Angeles, at $532 round-trip. The most popular route is London Gatwick Airport (LGW) to Los Angeles (LAX) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $532.

What is the cheapest month to fly from the United Kingdom to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom 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 the United Kingdom to California is September, when tickets cost $704 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $1,090 and $930 respectively.

How far in advance should I book a flight from the United Kingdom to California?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 the United Kingdom to California, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Which is the cheapest airport to fly into in California?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in California is Los Angeles Airport (LAX), with an average flight price of $655.

Good to know

Low seasonJanuary
Cheapest flight$411
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from London Heathrow Airport to Ontario

Flights from the United Kingdom to California: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from the United Kingdom to California 
AlastairFlew with British AirwaysLHR-SFOFeb 2025
Make sure your free checked luggage is for outward and return flights.
Verified travelerFlew with British AirwaysLHR-SANSep 2024
Flight overall is good. Service is very good. Bring yourself some snacks, in case the food isn’t up to your taste.
MeganFlew with IberiaLHR-LAXSep 2024
Pack light and know you can always get stuff when you land.
Verified travelerFlew with United AirlinesLHR-SFOSep 2024
Download all your music. Add shows and movies to your queue. Bring short so you can relax. Bring long charger cords.
SimonFlew with British AirwaysLHR-LAXJun 2024
If flying business class I’d research which cabin your aircraft operates. BA have some old business class on the 380 and new business class on the 777. (And 350). The new cabin is so much better. But the food just isn’t as good as it used to be

FAQs for booking flights from the United Kingdom to California

  • I’m booking a flight to California to visit San Francisco. Which airport do I choose?

    San Francisco International is the closest to the city centre (15min) and has the most options when it comes to airlines and routes. United, British Airways, and Virgin Atlantic operate direct flights from London Heathrow, Norwegian flies from London Gatwick, and Thomas Cook Airlines operates seasonal flights to SFO from Manchester. However, this is one of the busiest airports in California; if you’d prefer a less busy airport, you can fly to San Jose International, which is 47min from downtown San Francisco. However, do keep in mind that British Airways is the only airline to operate regular flights to this airport from London Heathrow.

  • I’m planning a trip to Yosemite National Park. What’s the best airport to fly into?

    The closest airport to Yosemite is Fresno Yosemite International Airport (FAT), about 96 mi away from the park and accessible by road. If you want to fly from the United Kingdom all the way to Yosemite, you'll have to have a stopover either in San Francisco or Los Angeles. United flies from Heathrow and Gatwick to San Francisco and Los Angeles, while American Airlines flies to Los Angeles from Heathrow. Alternatively, or if you’d prefer to fly as little as possible, you can fly into San Francisco and then drive to Yosemite (approx. 3h 50min).

  • Which international airport in California is closest to Disneyland?

    Los Angeles International Airport is the closest to Disneyland California, which is about 35min away by car. This airport is served by the Disneyland Resort Express bus, which takes passengers straight to the park.

  • I’m searching for flights to California from Northern Ireland. Which are the best airports?

    If your final destination is Los Angeles or San Francisco, you can choose to catch a flight to California from London Heathrow with British Airways, Virgin Atlantic, and United, or from London Gatwick with Norwegian. easyJet operates direct flights to Gatwick from Belfast International Airport (BFS), while Aer Lingus and British Airways operate regular flights to Heathrow from George Best Belfast City Airport (BHD). If you’re flying to San Jose or San Diego, you’ll have to fly out of London Heathrow on British Airways. The simplest option is to book your flight to California with this airline from Belfast International.

  • How does KAYAK find such low prices on flights from the United Kingdom 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 the United Kingdom to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United Kingdom to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom 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 the United Kingdom 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 the United Kingdom 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 the United Kingdom 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 the United Kingdom 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 day to fly to California?

    Based on KAYAK data, the cheapest day to fly to California is Wednesday where round-trip tickets can be as cheap as $721. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $820 on average.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally in the afternoon, when round-trip flights cost $705 on average. Morning departures are around 2% 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 $761.

Top tips for finding a cheap flight out of the United Kingdom

  • For passengers flying from other cities in the UK without direct flights to California and who prefer to fly low-cost to London, Flybe operates regular flights to London Heathrow from Aberdeen and Edinburgh. On the other hand, Gatwick has more options for low-cost flights with easyJet operating regular connections with Belfast, Glasgow, and Inverness.
  • When looking for flights to California, you can choose from four international airports with regular direct flights to the UK. Those are Los Angeles International Airport (LAX), San Diego International Airport (SAN), San Francisco International Airport (SFO), and San Jose International Airport (SJC).
  • London Heathrow (LHR) is the airport in the United Kingdom with the most options when it comes to airlines flying to all the four major airports in California. Keep in mind that if you’re flying from elsewhere, you’ll probably need to factor in a stopover here.
  • If you prefer to fly out of London Gatwick (LGW), you'll have fewer options in terms of routes and airlines. Norwegian is the only airline operating direct flights to California from this airport, and only to Los Angeles and San Francisco.
  • If you’d like to book a direct flight to California from Manchester Airport (MAN), look for seasonal flights operated by Virgin Atlantic and Thomas Cook Airlines to San Francisco or Los Angeles.

Reviews of the top 5 airlines serving from the United Kingdom to California

 
See real verified KAYAK customer reviews for airlines flying to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to California. 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 the United Kingdom 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.
7.9
DeltaOverall score based on 8001 reviews
7.9Entertainment
7.3Food
8.5Crew
7.9Comfort
8.2Boarding
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The crew was not very visible. This might be a good thing for people who wanted to sleep but seemed odd when compared to the Atlantic crossing where they are more present in the cabin. The Food (beef) was not good. Tough and tasteless. Would love to see more choices on a long flight like that.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

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

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. 😭

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.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

Everything you need to know for your flight to California

Cabin class types available on flights to California

Cabin classes available on flights to California. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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