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Cheap flights from London Heathrow Airport to California from £287

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to California

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to California
Explore the most affordable flight options available from Heathrow to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Sat 27/1212:05LHR - LAX
1 stop16h 29mUnited Airlines
Mon 14/915:40LAX - LHR
Nonstop10h 30mUnited Airlines
Deal found 11/12£468
Thu 25/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 29/116:45LAX - LHR
1 stop34h 40mTAP AIR PORTUGAL
Deal found 10/12£470
Tue 23/1208:15LHR - SFO
1 stop38h 15mTAP AIR PORTUGAL
Mon 19/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 10/12£473
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Mon 12/116:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 11/12£476
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Mon 29/1216:35SFO - LHR
1 stop36h 05mTAP AIR PORTUGAL
Deal found 10/12£482
Thu 25/1218:30LHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 11/12£484
Sat 27/1210:05LHR - LAX
1 stop16h 58mUnited Airlines
Thu 10/915:40LAX - LHR
Nonstop10h 30mUnited Airlines
Deal found 11/12£485
Wed 24/1215:25LHR - SFO
Nonstop11h 20mBritish Airways
Tue 6/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 10/12£486
Thu 18/1210:05LHR - LAX
Nonstop11h 25mBritish Airways
Wed 31/1218:00LAX - LHR
Nonstop10h 30mBritish Airways
Deal found 10/12£487
Sat 27/1212:05LHR - LAX
1 stop19h 25mUnited Airlines
Sun 13/915:40LAX - LHR
Nonstop10h 30mUnited Airlines
Deal found 11/12£490
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop19h 30mTAP AIR PORTUGAL
Deal found 12/12£495
Wed 24/1217:00LHR - SFO
1 stop29h 35mScandinavian Airlines
Sat 17/116:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 10/12£497

Find flight deals from Heathrow to California

Keep the following information in mind while searching for Heathrow to California flight deals. Data was last updated 12 December 2025.

Round-trip from

£373

One-way from

£287

Popular in

July

Cheapest in

September

Average price

£584

Good round-trip deal

£468 or less

Good one-way deal

£410 or less
United Airlines
  • United Airlines
  • 12/1-2/2
  • 2 total stops
  • 31h 15m total
  • London to California
Search Deals
British Airways
  • British Airways
  • 20/4
  • Nonstop
  • 11h 20m total
  • London to California
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to California.
Search Deals
Price to beat on a one-way flight from London Heathrow to California.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to California that are best for you.

Fly from

Heathrow

Fly to

California

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 12/1

13:45-22:53

1 stop17h 08m

Ontario

Mon 2/2

13:53-12:00

1 stop14h 07m

£373

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 21/2

10:20-17:00

1 stop14h 40m

Los Angeles

Sun 1/3

19:30-21:40

1 stop18h 10m

£459

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 4/3

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 18/3

20:00-13:30

Nonstop10h 30m

£465

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 10/2

10:45-23:53

1 stop21h 08m

Oakland

Tue 17/2

05:55-10:00

1 stop20h 05m

£468

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sun 8/2

09:20-23:58

1 stop22h 38m

Las Vegas Harry Reid Intl

Sat 14/2

22:09-20:45

1 stop14h 36m

£470

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Tue 20/1

09:30-20:42

2 stops19h 12m

Santa Ana J. Wayne/Orange Cnty

Tue 27/1

10:51-11:05

2 stops16h 14m

£473

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 12/1

16:40-14:50

1 stop30h 10m

San Francisco

Mon 26/1

12:50-07:25

Nonstop10h 35m

£476

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 16/1

12:20-00:51

1 stop20h 31m

Los Angeles

Sun 18/1

07:00-09:30

1 stop18h 30m

£476

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Tue 13/1

16:15-21:29

2 stops37h 14m

San Jose

Sat 17/1

11:51-06:50

1 stop34h 59m

£481

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 10/2

17:50-16:14

2 stops30h 24m

Oakland

Tue 17/2

05:55-10:00

1 stop20h 05m

£483

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow to California

Have a flexible travel schedule? Discover the best time to fly to California from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to California

What is the cheapest month to book a flight from London Heathrow Airport to California?

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to California (average of £339). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to CA?

Find hourly flight availability from Heathrow to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.

When flying from London Heathrow Airport to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Heathrow to California. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to California flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to California

Explore weekly flight availability from Heathrow to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 December 2025.

The most flights from LHR to USCA are scheduled on a Monday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated 12 December 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andUnited Airlines from London Heathrow Airport to California by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,095 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,626 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,571 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.3

Overall

7.7

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Heathrow to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to California?

    For as low as £459, United Airlines can have you in California from London Heathrow Airport in 14h 40m. London Heathrow Airport and California are separated by a distance of 5439 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to California one-way?

    One-way options have recently been found by users for as low as £164 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £245 and Scandinavian Airlines from £250 one-way.

  • What are the most popular routes from London Heathrow Airport to California?

    When deciding which route to take from London Heathrow Airport to California consider London Heathrow - Los Angeles, London Heathrow - Las Vegas Harry Reid Intl or London Heathrow - San Francisco as they are the most popular.

  • What are the most reliable airlines from London Heathrow Airport to California?

    Before booking your flight to California from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (89%), Air Canada (85%), Austrian Airlines( 85%).

  • What are the cheapest flights from London Heathrow Airport to California?

    Looking for the cheapest flight from London Heathrow Airport to California? While on average our users pay £2,638, our data indicates the cheapest price to be £366. The most popular route (London Heathrow - Los Angeles), is priced around £351.

  • Can I find deals for flights from Heathrow to California that include hotel bookings?

    Yes. In addition to deals on Heathrow to California flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to California.

  • Can I find deals for business class flights from Heathrow to California?

    Yes. Cheapflights offers flight deals from Heathrow to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to California?

    Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to California (average of £339). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to California

Discover the top 10 airlines that operate flights from Heathrow to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£238Average£545FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£280Average£527FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£292Average£400FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£311Average£573FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£335Average£911FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£336Average£507FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Scandinavian AirlinesCheapest£339Average£493FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
United AirlinesCheapest£339Average£542FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£340Average£518FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Austrian AirlinesCheapest£357Average£496FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to California?

Cheapflights helps you search for flights from Heathrow to California via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to California?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to California with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to California, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to California become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to California from Heathrow today and book when prices fit your budget.

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