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$265+ Cheap flights from California to the United Kingdom

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from California to United Kingdom

Keep the following information in mind while searching for California to United Kingdom flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$583
(CrystalTravel)

One-way from

$268
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$676

Good round-trip deal

$624 or less

Good one-way deal

$289 or less
Provider with most accurate pricing for Los Angeles-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.
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From California to United Kingdom
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One-way flight from California to United Kingdom
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Highest demand for flights based on searches. 13% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from California to United Kingdom.
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Price to beat on a one-way flight from California to United Kingdom.
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Find flight deals from California to United Kingdom

Cheapest flights from California to United Kingdom
Explore the most affordable flight options available from California to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This CrystalTravel deal was found by Cheapflights users on 3/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:30 pmLAX - LHR
1 stop18h 10mScandinavian Airlines
Wed 9/247:05 amLHR - LAX
2 stops17h 15mScandinavian Airlines
Deal found 3/30$583
This Norse deal was found by Cheapflights users on 3/29. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:25 pmLAX - LGW
1 stop26h 05mMultiple Airlines
Mon 5/197:45 amLGW - LAX
1 stop19h 20mMultiple Airlines
Deal found 3/29$583
This Norse deal was found by Cheapflights users on 3/30. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/79:25 pmLAX - LTN
1 stop17h 10mMultiple Airlines
Wed 5/143:10 pmLTN - LAX
1 stop35h 55mMultiple Airlines
Deal found 3/30$589
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Sun 5/254:30 pmLAX - LGW
Nonstop10h 25mNorse Atlantic UK
Thu 6/510:45 amLGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 3/31$593
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sun 4/67:45 pmLAX - LHR
1 stop34h 30mMultiple Airlines
Mon 5/193:05 pmLHR - LAX
2 stops31h 35mMultiple Airlines
Deal found 3/29$595
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/204:40 pmLAX - LHR
1 stop21h 20mTAP AIR PORTUGAL
Tue 8/196:00 amLHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Deal found 3/31$606
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Mon 4/710:28 pmSFO - LGW
2 stops23h 52mMultiple Airlines
Mon 4/282:00 pmLGW - SFO
1 stop31h 19mMultiple Airlines
Deal found 3/30$606
This Scandinavian Airlines deal was found by Cheapflights users on 3/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:40 pmSFO - LHR
2 stops40h 15mScandinavian Airlines
Wed 5/217:05 amLHR - SFO
2 stops17h 25mScandinavian Airlines
Deal found 3/31$606
This lastminute.com deal was found by Cheapflights users on 3/31. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/315:45 pmSFO - LHR
1 stop13h 10mAer Lingus
Tue 4/159:50 amLHR - SFO
1 stop14h 05mAer Lingus
Deal found 3/31$611
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:20 pmSFO - LGW
1 stop15h 15mTAP AIR PORTUGAL
Mon 10/69:15 pmLGW - SFO
2 stops25h 20mTAP AIR PORTUGAL
Deal found 3/30$612
This World Air Fares deal was found by Cheapflights users on 3/30. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/83:55 pmSFO - LHR
Nonstop10h 30mMultiple Airlines
Fri 4/258:40 amLHR - SFO
1 stop15h 30mMultiple Airlines
Deal found 3/30$619
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2610:45 pmLAX - LHR
1 stop23h 50mAir Canada
Fri 5/92:05 pmLHR - LAX
1 stop16h 54mAir Canada
Deal found 3/30$627

Cheapflights Fare Finder

Customize your flight search to find flights from California to United Kingdom 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 March 31, 2025.
Use the filters below to find and compare flights from California to the United Kingdom that are best for you.

Fly from

California

Fly to

United Kingdom

Route

Depart

Return

Price

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 5/14

7:30 pm-9:40 pm

1 stop18h 10m

London Heathrow

Wed 5/21

7:05 am-4:20 pm

2 stops17h 15m

$583

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 5/4

9:25 pm-7:30 am

1 stop26h 05m

London Gatwick

Mon 5/19

7:45 am-7:05 pm

1 stop19h 20m

$583

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Wed 5/7

9:25 pm-10:35 pm

1 stop17h 10m

London Luton

Wed 5/14

3:10 pm-7:05 pm

1 stop35h 55m

$589

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 5/25

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Thu 6/5

10:45 am-2:00 pm

Nonstop11h 15m

$593

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 4/6

7:45 pm-2:15 pm

1 stop34h 30m

London Heathrow

Mon 5/19

3:05 pm-2:40 pm

2 stops31h 35m

$595

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 5/7

7:40 pm-7:55 pm

2 stops40h 15m

London Heathrow

Wed 5/21

7:05 am-4:30 pm

2 stops17h 25m

$606

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 9/22

4:20 pm-3:35 pm

1 stop15h 15m

London Gatwick

Mon 10/6

9:15 pm-2:35 pm

2 stops25h 20m

$612

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 4/26

10:45 pm-6:35 am

1 stop23h 50m

London Heathrow

Fri 5/9

2:05 pm-10:59 pm

1 stop16h 54m

$627

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 9/22

4:20 pm-5:45 pm

1 stop17h 25m

London Heathrow

Mon 9/29

1:45 pm-2:35 pm

1 stop32h 50m

$628

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/16

1:07 pm-10:30 am

1 stop13h 23m

London Heathrow

Sun 4/20

4:25 pm-12:30 am

1 stop16h 05m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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

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

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

Currently, November is the cheapest month in which you can book a flight from California to United Kingdom (average of $661). Flying from California to United Kingdom in June is currently the most expensive (average of $1,110). 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 CA to GB?

Find hourly flight availability from California to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to United Kingdom as you normally would.

Weekly flight availability from California to United Kingdom

Explore weekly flight availability from California to United Kingdom. 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 March 31, 2025.

The most flights from USCA to GB0 are scheduled on a Sunday (58 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (47 on average).

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated March 31, 2025.
Read through reviews of airlines operating flights from California to United Kingdom, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
770 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

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

    $274 is the cheapest one-way deal found within the past few days, from Norse Atlantic UK. You may also be able to find cheap deals on WestJet and A.P.G., with prices starting from $298 and $328, respectively.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from California to United Kingdom (average of $661). Flying from California to United Kingdom in June is currently the most expensive (average of $1,110). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for California to United Kingdom

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

Discover the top 10 airlines that operate flights from California to United Kingdom. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,006FlexibilityNo cancel feeOn-time60%
Scandinavian AirlinesCheapest$316Average$707FlexibilityNo cancel feeOn-time77%
Norse Atlantic UKCheapest$379Average$677FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$418Average$966FlexibilityNo cancel feeOn-time72%
TAP AIR PORTUGALCheapest$428Average$588FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$447Average$972FlexibilityNo cancel feeOn-time77%
KLMCheapest$463Average$989FlexibilityNo cancel feeOn-time75%
FinnairCheapest$465Average$723FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$475Average$1,052FlexibilityNo cancel feeOn-time76%
DeltaCheapest$482Average$968FlexibilityNo cancel feeOn-timeN/A
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