£281 Find Cheap Flights from London Heathrow Airport 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 Heathrow to California departing on 5/5. 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to California.
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Flight Deals

Cheap Flights from Heathrow to California

Cheapest return prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop£364
San Francisco
San Francisco1 stop£378
San Diego
San Diego2 stops£480
San Jose
San Jose1 stop£441
Palm Springs
Palm Springs2 stops£586
Fresno
Fresno2 stops£600
Redding
Redding2 stops£627
Arcata
Arcata2 stops£866
Bakersfield
Bakersfield2 stops£634
Los Angeles
Los Angeles1 stop£364
San Francisco
San Francisco1 stop£378
San Diego
San Diego2 stops£480
San Jose
San Jose1 stop£441
Palm Springs
Palm Springs2 stops£586
Fresno
Fresno2 stops£600
Redding
Redding2 stops£627
Arcata
Arcata2 stops£866
Bakersfield
Bakersfield2 stops£634

Book Cheap Heathrow to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 return flight deals from Heathrow to California

Thu, 23 Apr - Wed, 20 May
Finnair Logo
07:30 - 17:10
LHR
-
LAX
17h 40m
1 stop
Finnair Logo
18:50 - 20:40
LAX
-
LHR
17h 50m
1 stop
£364Finnair
Mon, 6 Apr - Tue, 21 Apr
United Airlines Logo
11:25 - 21:50
LHR
-
LAX
18h 25m
1 stop
United Airlines Logo
12:01 - 11:35
LAX
-
LHR
15h 34m
1 stop
£370United Airlines
Sat, 11 Apr - Tue, 14 Apr
Air Canada Logo
09:30 - 20:59
LHR
-
LAX
19h 29m
1 stop
Air Canada Logo
07:35 - 06:35
LAX
-
LHR
15h 00m
1 stop
£373Air Canada
Thu, 30 Apr - Fri, 8 May
British Airways Logo
11:40 - 14:50
LHR
-
LAX
11h 10mdirect
British Airways Logo
20:55 - 15:25
LAX
-
LHR
10h 30mdirect
£378British Airways
Wed, 17 Jun - Wed, 1 Jul
Air Canada Logo
15:05 - 23:06
LHR
-
SFO
16h 01m
1 stop
Air Canada Logo
11:10 - 10:00
SFO
-
LHR
14h 50m
1 stop
£378Air Canada
Sun, 23 Aug - Tue, 15 Sep
British Airways Logo
10:45 - 13:50
LHR
-
SFO
11h 05mdirect
British Airways Logo
19:30 - 13:55
SFO
-
LHR
10h 25mdirect
£386British Airways
Wed, 29 Apr - Wed, 20 May
Lufthansa Logo
11:25 - 17:23
LHR
-
SNA
13h 58m
1 stop
Lufthansa Logo
16:24 - 14:10
SNA
-
LHR
13h 46m
1 stop
£461Lufthansa
Mon, 3 Aug - Wed, 12 Aug
Virgin Atlantic Logo
18:55 - 16:21
LHR
-
LGB
29h 26m
2 stops
Virgin Atlantic Logo
12:59 - 06:20
LGB
-
LHR
33h 21m
2 stops
£481Virgin Atlantic
Mon, 3 Aug - Fri, 14 Aug
Virgin Atlantic Logo
18:55 - 21:45
LHR
-
LGB
34h 50m
2 stops
Virgin Atlantic Logo
12:59 - 06:20
LGB
-
LHR
33h 21m
2 stops
£482Virgin Atlantic
Fri, 24 Apr - Sat, 25 Apr
Lufthansa Logo
11:05 - 18:27
LHR
-
LAS
15h 22m
1 stop
Lufthansa Logo
14:15 - 10:10
LAS
-
LHR
35h 55m
1 stop
£494Lufthansa
Booking Insights

KAYAK's insights & trends for Heathrow to California flights

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

How much is a return flight from London Heathrow Airport to California?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to California departing in April.

What is the cheapest London Heathrow Airport to California flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to California from London Heathrow Airport found in the last 72 hours was to Los Angeles, at £375 return. The most popular route is from London Heathrow Airport (LHR) to Los Angeles (LAX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £375.

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

The average price for all round-trip flights from London Heathrow Airport to California depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to California is generally in the morning, when retur flights cost £502 on average. Morning departures are around 9% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is £554.

Can I save money by flying with a stopover from London Heathrow Airport to California?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £550, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport 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 Heathrow Airport to California is September, when tickets cost £409 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £583 and £576 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to California?

The average price of all round-trip flights from London Heathrow Airport to California clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London Heathrow Airport to California, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from California, Wednesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from London Heathrow Airport 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 Heathrow Airport 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 a flight from London Heathrow Airport to California, you should book around 2 weeks before departure, which saves you about 26% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to California

Low seasonJanuary
Cheapest flight£281
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Heathrow Airport to San Diego

Flights from Heathrow to California: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Heathrow to California 
AntonFlew with United Airlines
LHR
-
SFO
Feb 2026
United has a cool arrival lounge in london but it is a bit hard to find, after customs look left
AlastairFlew with British Airways
LHR
-
SFO
Feb 2025
Make sure your free checked luggage is for outward and return flights.
Verified travelerFlew with British Airways
LHR
-
SAN
Sept 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 Iberia
LHR
-
LAX
Sept 2024
Pack light and know you can always get stuff when you land.
Verified travelerFlew with United Airlines
LHR
-
SFO
Sept 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 Airways
LHR
-
LAX
Jun 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
Verified travelerFlew with American Airlines
LHR
-
SFO
Mar 2024
Heathrow is vast, allow plenty of time to drop bags and go through security. At San Francisco the immigration takes a bit of time and we had to wait around 1.5hrs, bare this in mind when booking car rental. The is a shuttle train from the airport to the car rental area which is very slick and efficient.
Ana-MariaFlew with Iberia
LHR
-
SFO
Mar 2024
In London triple check your flight they have multiple leaving for the same destination once - it is easy to get them confused

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 Heathrow Airport to California.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport 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 Heathrow Airport to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from London Heathrow Airport to California

  • Looking for a cheap flight from London Heathrow Airport to California? 25% of our users found tickets from London Heathrow Airport to California for the following prices or less: Los Angeles £613 one-way - £406 round-trip

Reviews of the top 5 airlines flying from Heathrow 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 Heathrow 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.
7.8
KLMOverall score based on 1471 reviews
7.3Food
7.6Comfort
7.8Boarding
7.1Entertainment
8.4Crew
Airline reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

6.0 GoodGlenn, Feb 2026
AMS - JFK
Read more KLM reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

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

It was amazing. I had several upgraded seats on my flight out. Everything went smooth with no delays.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Flight attendants had a little attitude. Food tastes no good.

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

The plane (Mitsubishi CRJ) felt old, creaking and not very new. The crew was okay. Hot water provision was broken so hot beverages could't be served.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Never happened. Flight was delayed. Had to be re rojyed

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

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

Information on your arrival and departure airports