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$267+ Cheap flights from California to Heathrow (LHR)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from California to Heathrow

Cheapest flights from California to Heathrow
Explore the most affordable flight options available from California to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:45 pm
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Mon 5/116:40 am
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 3/11$612
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:45 pm
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Sat 5/96:40 am
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 3/11$613
This oojo deal was found by Cheapflights users on 3/11. 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.
Thu 9/174:45 pm
SFO
-
LHR
2 stops32h 50m
Scandinavian Airlines
Thu 9/246:40 am
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 3/11$615
This Flightnetwork deal was found by Cheapflights users on 3/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:35 pm
SFO
-
LHR
1 stop30h 45m
TAP AIR PORTUGAL
Sat 5/28:00 am
LHR
-
SFO
1 stop17h 35m
TAP AIR PORTUGAL
Deal found 3/11$616
This Scandinavian Airlines deal was found by Cheapflights users on 3/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:10 pm
LAX
-
LHR
1 stop14h 30m
Scandinavian Airlines
Sun 9/69:05 pm
LHR
-
LAX
2 stops27h 45m
Scandinavian Airlines
Deal found 3/11$617
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:35 pm
SFO
-
LHR
1 stop17h 10m
TAP AIR PORTUGAL
Fri 5/86:00 am
LHR
-
SFO
1 stop18h 50m
TAP AIR PORTUGAL
Deal found 3/11$617
This Scandinavian Airlines deal was found by Cheapflights users on 3/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:40 pm
SFO
-
LHR
1 stop32h 40m
Scandinavian Airlines
Fri 12/46:40 am
LHR
-
SFO
2 stops26h 33m
Scandinavian Airlines
Deal found 3/11$618
This Scandinavian Airlines deal was found by Cheapflights users on 3/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:10 pm
LAX
-
LHR
1 stop30h 10m
Scandinavian Airlines
Thu 10/17:05 am
LHR
-
LAX
2 stops41h 45m
Scandinavian Airlines
Deal found 3/11$619
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Sat 10/34:45 pm
SFO
-
LHR
1 stop16h 55m
Scandinavian Airlines
Tue 10/136:40 am
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 3/14$619
This Booking.com deal was found by Cheapflights users on 3/12. 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.
Fri 4/244:40 pm
LAX
-
LHR
1 stop21h 20m
TAP AIR PORTUGAL
Fri 5/11:45 pm
LHR
-
LAX
1 stop32h 55m
TAP AIR PORTUGAL
Deal found 3/12$620
This FlightHub deal was found by Cheapflights users on 3/15. 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.
Tue 10/64:45 pm
SFO
-
LHR
2 stops20h 50m
Scandinavian Airlines
Mon 10/195:30 pm
LHR
-
SFO
2 stops29h 10m
Scandinavian Airlines
Deal found 3/15$620
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 pm
LAX
-
LHR
1 stop14h 30m
Scandinavian Airlines
Tue 9/295:00 pm
LHR
-
LAX
1 stop31h 50m
Scandinavian Airlines
Deal found 3/13$621

Find flight deals from California to Heathrow

Keep the following information in mind while searching for California to Heathrow flight deals. Data was last updated March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$612
(Kiwi.com)

One-way from

$267
(Priceline)

Popular in

December

Cheapest in

September

Average price

$708

Good round-trip deal

$719 or less

Good one-way deal

$375 or less
Provider with most accurate pricing for Los Angeles Los Angeles-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-London (LON) flights.
Search Deals
From California to London Heathrow
Search Deals
One-way flight from California to London Heathrow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from California to London Heathrow.
Search Deals
Price to beat on a one-way flight from California to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Heathrow 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 16, 2026.
Use the filters below to find and compare flights from California to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/14

7:30 pm-2:10 pm

Nonstop10h 40m

London Heathrow

Tue 4/21

10:50 am-7:00 pm

1 stop16h 10m

$750

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/8

5:55 pm-12:15 pm

Nonstop10h 20m

London Heathrow

Tue 4/21

11:45 am-11:45 am

1 stop32h 00m

$752

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 3/30

12:50 pm-7:25 am

Nonstop10h 35m

London Heathrow

Mon 4/27

4:25 pm-7:00 pm

1 stop34h 35m

$761

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 4/5

11:20 am-1:20 pm

1 stop18h 00m

London Heathrow

Mon 4/13

9:00 am-2:30 pm

1 stop37h 30m

$762

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Mon 4/13

1:36 pm-10:30 am

1 stop12h 54m

London Heathrow

Tue 4/28

12:55 pm-8:50 pm

1 stop15h 55m

$763

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 4/18

10:55 pm-7:10 am

1 stop24h 15m

London Heathrow

Tue 5/5

8:40 am-9:23 pm

2 stops20h 43m

$765

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 4/6

8:55 am-3:00 pm

1 stop22h 05m

London Heathrow

Wed 4/15

8:40 am-7:56 pm

2 stops19h 16m

$766

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 4/26

10:05 am-6:30 pm

2 stops24h 25m

London Heathrow

Tue 5/12

7:05 am-11:15 pm

3 stops24h 10m

$769

BurbankLondon

BUR - LHR

BURLHR

Burbank Bob Hope

Tue 4/28

9:47 am-10:20 am

2 stops16h 33m

London Heathrow

Tue 5/5

6:30 am-4:09 pm

2 stops17h 39m

$776

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles Los Angeles

Wed 5/6

3:50 pm-10:15 am

Nonstop10h 25m

London Heathrow

Wed 5/20

6:30 am-2:45 pm

1 stop16h 15m

$779

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from California to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 London Heathrow Airport

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

Currently, December is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $469). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $696). 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 LHR?

Find hourly flight availability from California to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.

It’s optimal to fly from California to London Heathrow Airport in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from California to Heathrow. Price data was last updated on October 19, 2025.

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

Weekly flight availability from California to London Heathrow Airport

Explore weekly flight availability from California to Heathrow. 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 16, 2026.

The most flights from USCA to LHR are scheduled on a Monday (51 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (39 on average).

How much does it cost to fly round-trip from California to London Heathrow Airport?

Related info for your journey

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

    Airlines like United Airlines, Delta, and Scandinavian Airlines fly from California to London Heathrow Airport in about 10h 20m. The time it takes to get you to your destination can typically vary by up to 14h 05m. There are 5350 mi between California and London Heathrow Airport. This flight may include one or multiple stops.

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

    $139 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 TAP AIR PORTUGAL and JetBlue, with prices starting from $168 and $179, respectively.

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

    When deciding which route to take from California to London Heathrow Airport consider Los Angeles Los Angeles - London Heathrow, San Francisco - London Heathrow or San Diego - London Heathrow as they are the most popular.

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

    The top 3 most reliable airlines when flying from California to London Heathrow Airport are Air Canada (85%), Austrian Airlines (85%) and United Airlines (85%).

  • What are the cheapest flights from California to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for $273. While the most popular route (Los Angeles Los Angeles - London Heathrow) can be booked for $502 on average, our data indicates $3,136 when flying from California to London Heathrow Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Heathrow 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 London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $469). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $696). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

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.

Top 10 airlines flying from California to Heathrow

Discover the top 10 airlines that operate flights from California to Heathrow. 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 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$967FlexibilityNo cancel feeOn-time62%
Brussels AirlinesCheapest$291Average$910FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$336Average$641FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$373Average$537FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$463Average$788FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$468Average$756FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$475Average$692FlexibilityNo cancel feeOn-timeN/A
Austrian AirlinesCheapest$484Average$1,023FlexibilityNo cancel feeOn-time78%
FinnairCheapest$485Average$700FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$494Average$765FlexibilityNo cancel feeOn-time75%

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