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Cheap flights from London Heathrow Airport to California from £270

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
9 Nov — 16 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Heathrow to California

Keep the following information in mind while searching for Heathrow to California flight deals. Data was last updated 10 October 2025.

Round-trip from

£360

One-way from

£270

Popular in

December

Cheapest in

September

Average price

£480

Good round-trip deal

£390 or less

Good one-way deal

£439 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 6/11-13/11
  • 2 total stops
  • 37h 30m total
  • London to California
Search Deals
15/1
  • 15/1
  • 2 total stops
  • 18h 25m total
  • London to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

Find 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 10 October 2025.

Thu 6/1106:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Sat 15/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 9/10£362
Wed 5/1118:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Thu 13/1116:45LAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 9/10£363
Thu 6/1106:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 13/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 9/10£365
Thu 20/1106:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 22/116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 10/10£369
Wed 5/1113:40LHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Tue 18/1116:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 10/10£375
Wed 5/1118:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Sat 15/1116:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 9/10£378
Sat 8/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Sat 15/1116:35SFO - LHR
1 stop22h 05mTAP AIR PORTUGAL
Deal found 8/10£384
Wed 5/1118:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Tue 25/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 9/10£388
Tue 11/1106:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 27/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 9/10£389
Thu 6/1106:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 27/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 9/10£390
Sat 8/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Mon 17/1116:35SFO - LHR
1 stop22h 05mTAP AIR PORTUGAL
Deal found 9/10£398
Sat 8/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Wed 12/1116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 8/10£399

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 10 October 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

Thu 26/2

06:30-21:14

2 stops22h 44m

Ontario

Mon 2/3

06:45-12:50

1 stop22h 05m

£423

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 20/1

10:20-17:00

1 stop14h 40m

Los Angeles

Fri 30/1

19:30-09:35

2 stops30h 05m

£426

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 22/11

15:35-14:35

2 stops31h 00m

San Francisco

Sat 29/11

16:40-18:30

1 stop17h 50m

£426

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 7/3

15:35-14:35

2 stops31h 00m

San Francisco

Sat 14/3

17:40-18:50

2 stops18h 10m

£428

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 22/12

10:45-19:50

1 stop17h 05m

Ontario

Mon 12/1

13:00-10:00

1 stop13h 00m

£432

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 25/12

10:45-22:33

1 stop19h 48m

Ontario

Mon 5/1

17:05-10:00

1 stop32h 55m

£432

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 24/12

12:30-10:05

1 stop29h 35m

Ontario

Mon 5/1

17:05-10:00

1 stop32h 55m

£432

LondonLong Beach

LHR - LGB

LHRLGB

London Heathrow

Fri 27/2

13:00-16:23

2 stops35h 23m

Long Beach Municipal

Tue 3/3

12:59-06:50

2 stops33h 51m

£438

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 9/1

06:40-17:00

1 stop18h 20m

Los Angeles

Fri 16/1

19:30-09:35

2 stops30h 05m

£440

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 9/1

12:20-22:38

1 stop18h 18m

Ontario

Sun 11/1

06:45-10:30

1 stop19h 45m

£448

Flights are sorted by cheapest return flights first.

Deals found on 9/10

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 £340). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £417). 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 10 October 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 10 October 2025.

The most flights from LHR to USCA are scheduled on a Wednesday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (49 on average).

How much does it cost for a return flight from London Heathrow Airport to California?

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 10 October 2025.
Get a feel of what it's like to fly with KLM, United Airlines, andVirgin Atlantic 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
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,401 reviews
KLM
7.7
Good
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
8,973 reviews
KLM
7.7
Good
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.4
Good
665 reviews
KLM
7.7
Good
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,467 reviews
KLM
7.7
Good
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,449 reviews
KLM
7.7
Good
1,401 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 £426, Delta 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 £275 on LEVEL. Other airlines that offer cheap prices include British Airways from £313 and Virgin Atlantic from £320 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 - San Francisco or London Heathrow - Las Vegas Harry Reid Intl 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: Aeromexico (100%), KLM (85%), Air France( 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 £2,608, our data indicates the cheapest price to be £360. The most popular route (London Heathrow - Los Angeles), is priced around £337.

  • 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 £340). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £417). 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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Gatwick to Reagan-National flights
Luton to Dulles Intl flights
Stansted to Boston flights
Gatwick to Dallas/Fort Worth flights
London City to San Francisco flights
Luton to Boston flights

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 10 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£240Average£535FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£282Average£529FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£294Average£405FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£312Average£583FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£336Average£554FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£338Average£502FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£341Average£562FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Brussels AirlinesCheapest£348Average£479FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£349Average£517FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£354Average£506FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL 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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