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Cheap flights from the United Kingdom to California from £312

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 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from United Kingdom to California

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to California
Explore the most affordable flight options available from United Kingdom to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 November 2025.

Tue 9/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 22/116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 14/11£407
Wed 3/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 15/11£412
Sat 6/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 12/116:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 15/11£414
Sat 6/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Sun 7/1216:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 15/11£416
Sat 22/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Wed 10/1216:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 15/11£417
Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 16/11£417
Wed 26/1106:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Wed 10/1216:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 15/11£419
Thu 20/1116:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LGW
2 stops20h 00mTAP AIR PORTUGAL
Deal found 16/11£419
Wed 3/1218:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 15/11£419
Sun 14/1219:55LHR - SFO
1 stop26h 40mTAP AIR PORTUGAL
Mon 19/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 15/11£420
Wed 3/1219:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Sun 7/1216:40SFO - LHR
2 stops18h 10mScandinavian Airlines
Deal found 14/11£421
Thu 4/1216:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Mon 8/1216:35SFO - LGW
2 stops20h 00mTAP AIR PORTUGAL
Deal found 15/11£422

Cheap flight deals from United Kingdom to California

Keep the following information in mind while searching for United Kingdom to California flight deals. Data was last updated 16 November 2025.

Round-trip from

£364

One-way from

£312

Popular in

December

Cheapest in

September

Average price

£476

Good round-trip deal

£431 or less

Good one-way deal

£372 or less
Virgin Atlantic
  • Virgin Atlantic
  • 18/2-11/3
  • 2 total stops
  • 35h 08m total
  • United Kingdom to California
Search Deals
British Airways
  • British Airways
  • 23/2
  • 2 total stops
  • 28h 45m total
  • United Kingdom to California
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£22 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 November 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to California.
Search Deals
Price to beat on a one-way flight from United Kingdom to California.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 16 November 2025.
Use the filters below to find and compare flights from the United Kingdom to California that are best for you.

Fly from

United Kingdom

Fly to

California

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 26/2

06:30-21:07

2 stops22h 37m

Ontario

Mon 2/3

15:30-12:50

1 stop13h 20m

£414

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 26/2

10:45-23:53

1 stop21h 08m

Ontario

Mon 2/3

15:30-12:50

1 stop13h 20m

£414

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 28/3

11:20-21:52

2 stops17h 32m

Ontario

Sat 11/4

13:00-14:00

2 stops17h 00m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 14/3

15:05-22:38

1 stop14h 33m

Ontario

Sat 4/4

13:00-09:50

1 stop12h 50m

£424

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 17/4

11:20-17:16

1 stop13h 56m

Ontario

Thu 30/4

11:55-09:00

1 stop13h 05m

£426

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 3/4

11:20-17:15

1 stop13h 55m

Ontario

Sun 19/4

11:55-09:00

1 stop13h 05m

£426

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 6/4

11:20-17:15

1 stop13h 55m

Ontario

Tue 21/4

13:00-09:50

1 stop12h 50m

£426

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 3/4

11:20-17:15

1 stop13h 55m

Ontario

Mon 20/4

13:00-09:50

1 stop12h 50m

£426

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

06:40-17:00

1 stop18h 20m

Los Angeles

Mon 16/2

19:30-21:40

1 stop18h 10m

£433

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 16/2

21:25-14:30

2 stops49h 05m

San Francisco

Wed 25/2

16:35-09:50

1 stop33h 15m

£439

Flights are sorted by cheapest return flights first.

Deals found on 14/11

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

Have a flexible travel schedule? Discover the best time to fly to California from United Kingdom 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 the United Kingdom to California

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to California (average of £243). Flying from United Kingdom to California in July is currently the most expensive (average of £415). 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 GB to CA?

Find hourly flight availability from United Kingdom 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 16 November 2025.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to California in the afternoon. If you’re flexible enough to do this you can expect to save up to 7% on your trip compared to booking a flight at midday.

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

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

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

Weekly flight availability from United Kingdom to California

Explore weekly flight availability from United Kingdom 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 16 November 2025.

The most flights from GB0 to USCA are scheduled on a Saturday (46 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (42 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 16 November 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andUnited Airlines from the United Kingdom 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
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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
9,012 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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
7,574 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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
7,526 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Overall

7.7

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 United Kingdom 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 United Kingdom to California?

    Delta, Virgin Atlantic, and Scandinavian Airlines can get you from United Kingdom to California in just under 18h 20m. Your travel time can differ by up to 4h 17m. United Kingdom 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 United Kingdom to California one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £312. United Airlines flights start at £322 while deals on SWISS start at £352 one-way.

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

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

  • How can I find direct flights from United Kingdom to California?

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to California?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to California (average of £243). Flying from United Kingdom to California in July is currently the most expensive (average of £415). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom 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 United Kingdom to California

Discover the top 10 airlines that operate flights from United Kingdom 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 16 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£242Average£636FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£284Average£550FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£297Average£528FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£299Average£532FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air CanadaCheapest£342Average£581FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£344Average£634FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£357Average£549FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£361Average£488FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£365Average£607FlexibilityNo cancel feeOn-time77%
Search Air France flights
Austrian AirlinesCheapest£367Average£500FlexibilityNo 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 United Kingdom to California?

Cheapflights makes it easy to find United Kingdom to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to California for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to California from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on United Kingdom to California flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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