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$415+ Cheap flights from London (LON) to California

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find flight deals from London to California

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

This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amLHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 2/124:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 11/12$516
This oojo deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amLHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 12/114:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 11/11$519
This Kiwi.com deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:30 pmLHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Sat 1/174:35 pmSFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 11/10$521
This Kiwi.com deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:30 pmLHR - SFO
1 stop31h 35mTAP AIR PORTUGAL
Fri 1/167:10 pmSFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 11/10$523
This oojo deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:55 pmLHR - SFO
1 stop26h 40mTAP AIR PORTUGAL
Wed 1/144:35 pmSFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 11/10$532
This Booking.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amLHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Tue 12/94:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 11/12$534
This KAYAK deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:00 amLHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Wed 12/34:35 pmSFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 11/10$538
This Justfly.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amLHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Sat 2/144:45 pmLAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 11/12$539
This Booking.com deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:35 pmLGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 12/114:45 pmLAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 11/10$540
This oojo deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amLHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 1/224:45 pmLAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 11/10$541
This FlightHub deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:00 amLHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 1/97:10 pmSFO - LHR
1 stop18h 25mTAP AIR PORTUGAL
Deal found 11/10$542
This Gotogate deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/214:40 pmLGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Fri 11/287:10 pmSFO - LGW
2 stops29h 10mTAP AIR PORTUGAL
Deal found 11/10$543

Cheap flight deals from London to California

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

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$476
(Travcart)

One-way from

$415
(Netflights)

Popular in

December

Cheapest in

September

Average price

$627

Good round-trip deal

$542 or less

Good one-way deal

$446 or less
Provider with most accurate pricing for London (LON)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Los Angeles flights.
Search Deals
From London (LON) to California
Search Deals
One-way flight from London (LON) to California
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to California.
Search Deals
Price to beat on a one-way flight from London (LON) to California.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from London to California that are best for you.

Fly from

London

Fly to

California

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 2/26

8:55 am-9:07 pm

1 stop20h 12m

Ontario

Mon 3/2

7:30 am-12:50 pm

1 stop21h 20m

$538

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Fri 3/27

12:20 pm-10:24 pm

1 stop17h 04m

Santa Ana J. Wayne/Orange Cnty

Tue 3/31

12:10 pm-1:30 pm

1 stop17h 20m

$538

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Sat 1/17

10:45 am-8:03 pm

1 stop17h 18m

Santa Ana J. Wayne/Orange Cnty

Sat 1/24

6:45 am-7:50 am

1 stop17h 05m

$542

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Sat 3/28

11:05 am-8:44 pm

1 stop16h 39m

Santa Ana J. Wayne/Orange Cnty

Sat 4/11

10:15 am-9:50 am

1 stop15h 35m

$542

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Wed 2/4

11:05 am-8:32 pm

1 stop17h 27m

Santa Ana J. Wayne/Orange Cnty

Wed 2/18

1:33 pm-10:00 am

1 stop12h 27m

$544

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

10:20 am-5:00 pm

1 stop14h 40m

Los Angeles

Mon 2/16

7:30 pm-9:40 pm

1 stop18h 10m

$572

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/4

9:05 pm-2:35 pm

2 stops25h 30m

San Francisco

Mon 12/8

4:40 pm-6:50 pm

2 stops18h 10m

$579

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 12/5

6:40 pm-2:35 pm

1 stop27h 55m

San Francisco

Sat 2/28

4:40 pm-5:40 pm

1 stop17h 00m

$583

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 12/3

5:00 pm-2:35 pm

1 stop29h 35m

San Francisco

Sun 3/1

4:40 pm-4:00 pm

1 stop15h 20m

$583

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Mon 4/13

4:25 pm-2:45 pm

1 stop30h 20m

Los Angeles

Tue 4/21

4:45 pm-9:45 am

1 stop33h 00m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

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

Have a flexible travel schedule? Discover the best time to fly to California from London with our price prediction graph.
Estimated round-trip 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 to California

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

Currently, September is the cheapest month in which you can book a flight from London to California (average of $320). Flying from London to California in July is currently the most expensive (average of $553). 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 LON to CA?

Find hourly flight availability from London 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 November 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from London to California by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from London to California. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their London to California flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to California

Explore weekly flight availability from London 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 November 12, 2025.

The most flights from LON to USCA are scheduled on a Monday (50 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (42 on average).

How much does it cost to fly round-trip from London 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 November 12, 2025.
Read through reviews of airlines operating flights from London to California, such as Delta, Virgin Atlantic, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.5
Good
673 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,015 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
British Airways
6.7
Okay
7,513 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London 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 to California?

    Delta, Scandinavian Airlines, and TAP AIR PORTUGAL can get you from London to California in just under 14h 40m. Your travel time can differ by up to 15h 40m. The distance between London and California is about 5439 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $425 on United Airlines. Other airlines that offer cheap prices include Lufthansa from $435 and British Airways from $438 one-way.

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

    The most popular flight routes from London to California are London Heathrow - Los Angeles, London Heathrow - San Francisco and London Heathrow - Las Vegas Harry Reid Intl.

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

    Consider KLM (87%), Air France (83%) or Delta (83%) when booking your flight. These represent the most reliable airlines when flying from London to California.

  • What are the cheapest flights from London to California?

    On average you can expect to pay $5,065 for a flight from London to California. The cheapest flight overall is $498 while the most popular route, (London Heathrow - Los Angeles) is currently priced at $472.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 to California?

    Currently, September is the cheapest month in which you can book a flight from London to California (average of $320). Flying from London to California in July is currently the most expensive (average of $553). 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 London 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 London to California

Discover the top 10 airlines that operate flights from London 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 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$381Average$558FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$382Average$707FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$416Average$807FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$498Average$788FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$509Average$742FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$513Average$723FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$516Average$737FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$519Average$685FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$520Average$800FlexibilityNo cancel feeOn-time77%
Brussels AirlinesCheapest$530Average$663FlexibilityNo cancel feeOn-timeN/A

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