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$218+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 November 13, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$586
(Iberia)

One-way from

$218
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$765

Good round-trip deal

$639 or less

Good one-way deal

$222 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 ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 13, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1612:30 amSFO - LHR
1 stop22h 35mDelta
Wed 11/2611:40 amLHR - SFO
Nonstop11h 00mDelta
Deal found 11/10$586
This Netflights deal was found by Cheapflights users on 11/13. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:40 amONT - LHR
1 stop22h 10mVirgin Atlantic
Tue 12/162:45 pmLHR - ONT
1 stop16h 02mVirgin Atlantic
Deal found 11/13$587
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amSFO - LHR
1 stop15h 50mDelta
Wed 11/2611:40 amLHR - SFO
Nonstop11h 00mDelta
Deal found 11/12$587
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:25 amSFO - LGW
3 stops30h 55mMultiple Airlines
Tue 12/24:10 pmLGW - SFO
2 stops28h 30mMultiple Airlines
Deal found 11/12$588
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1911:20 amSFO - LHR
2 stops14h 50mMultiple Airlines
Thu 12/47:40 amLHR - SFO
1 stop19h 55mMultiple Airlines
Deal found 11/11$588
This lastminute.com 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amONT - LHR
2 stops16h 50mVirgin Atlantic
Tue 12/1611:05 amLHR - ONT
2 stops20h 53mVirgin Atlantic
Deal found 11/11$589
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:25 amSFO - LHR
1 stop14h 45mMultiple Airlines
Tue 12/166:35 amLHR - SFO
1 stop21h 00mMultiple Airlines
Deal found 11/10$589
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:40 pmSFO - LHR
1 stop15h 20mScandinavian Airlines
Sat 12/136:40 amLHR - SFO
1 stop15h 55mScandinavian Airlines
Deal found 11/12$590
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.
Mon 12/84:35 pmSFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
Sun 12/149:25 pmLGW - SFO
2 stops25h 10mTAP AIR PORTUGAL
Deal found 11/12$591
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:20 pmSFO - LHR
1 stop12h 40mDelta
Tue 12/96:30 amLHR - SFO
2 stops17h 27mDelta
Deal found 11/12$591
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:30 pmSFO - LHR
Nonstop10h 10mDelta
Thu 12/1811:05 amLHR - SFO
1 stop14h 59mDelta
Deal found 11/12$592
This French Bee 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 French Bee is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:10 pmSFO - LGW
1 stop23h 15mMultiple Airlines
Wed 12/107:55 amLGW - SFO
1 stop20h 15mMultiple Airlines
Deal found 11/11$593

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 November 13, 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

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 11/19

7:00 am-6:50 am

1 stop15h 50m

London Heathrow

Thu 12/4

11:40 am-2:40 pm

Nonstop11h 00m

$587

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 1/6

9:50 am-10:00 am

1 stop16h 10m

London Heathrow

Wed 1/14

11:40 am-2:40 pm

Nonstop11h 00m

$593

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 12/1

4:35 pm-3:45 pm

1 stop15h 10m

London Gatwick

Sat 12/13

10:10 am-2:35 pm

2 stops60h 25m

$595

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 1/15

4:40 pm-4:00 pm

1 stop15h 20m

London Heathrow

Sun 1/25

6:40 pm-2:35 pm

1 stop27h 55m

$596

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 2/7

4:01 pm-5:40 pm

2 stops17h 39m

London Heathrow

Tue 2/17

10:20 am-11:16 pm

2 stops20h 56m

$598

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 11/30

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Fri 12/12

9:00 am-4:30 pm

1 stop15h 30m

$604

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 12/3

4:35 pm-10:55 am

Nonstop10h 20m

London Heathrow

Mon 12/8

10:00 am-11:45 am

1 stop33h 45m

$605

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 12/3

4:35 pm-10:55 am

Nonstop10h 20m

London Heathrow

Wed 12/10

6:30 am-11:45 am

1 stop13h 15m

$605

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Tue 1/20

10:20 pm-7:30 am

1 stop25h 10m

London Gatwick

Tue 2/3

11:20 am-10:00 am

1 stop30h 40m

$606

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 2/4

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Fri 2/20

9:00 am-4:35 pm

1 stop15h 35m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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, October is the cheapest month in which you can book a flight from California to United Kingdom (average of $226). Flying from California to United Kingdom in June is currently the most expensive (average of $563). 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 November 13, 2025.

One of the essential ways to save on airfare from California to United Kingdom is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 6% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from California to United Kingdom. Price data was last updated on November 3, 2024.

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

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 November 13, 2025.

The most flights from USCA to GB0 are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (44 on average).

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.

  • How long is the flight from California to United Kingdom?

    For as low as $595, Delta can have you in United Kingdom from California in 15h 10m. There are 5374 mi between California and United Kingdom. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $326 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on TAP AIR PORTUGAL and SWISS, with prices starting from $339 and $378, 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, October is the cheapest month in which you can book a flight from California to United Kingdom (average of $226). Flying from California to United Kingdom in June is currently the most expensive (average of $563). 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$982FlexibilityNo cancel feeOn-time62%
WestJetCheapest$272Average$1,017FlexibilityNo cancel feeOn-time60%
Scandinavian AirlinesCheapest$328Average$690FlexibilityNo cancel feeOn-time77%
SWISSCheapest$336Average$791FlexibilityNo cancel feeOn-time79%
Norse Atlantic UKCheapest$359Average$682FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$426Average$591FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$427Average$990FlexibilityNo cancel feeOn-time76%
FinnairCheapest$465Average$718FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$476Average$870FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$494Average$922FlexibilityNo cancel feeOn-time75%

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