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$219+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
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 February 3, 2026.

This Mytrip deal was found by Cheapflights users on 2/2. 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.
Sat 8/227:00 am
SMF
-
LHR
2 stops43h 00m
Multiple Airlines
Tue 8/256:55 am
LHR
-
SMF
2 stops18h 50m
Multiple Airlines
Deal found 2/2$523
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:16 am
RNO
-
LHR
1 stop16h 24m
United Airlines
Fri 5/158:40 am
LHR
-
RNO
2 stops38h 34m
United Airlines
Deal found 2/2$538
This Booking.com deal was found by Cheapflights users on 2/1. 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.
Sun 2/14:30 pm
SFO
-
LHR
Nonstop10h 10m
Virgin Atlantic
Tue 2/176:30 am
LHR
-
SFO
1 stop13h 20m
Virgin Atlantic
Deal found 2/1$594
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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 3/96:30 pm
LAX
-
LHR
1 stop14h 20m
Lufthansa
Mon 3/167:40 am
LHR
-
LAX
1 stop15h 35m
Lufthansa
Deal found 2/1$595
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/87:25 pm
SFO
-
LHR
1 stop14h 25m
SWISS
Tue 2/249:00 am
LHR
-
SFO
1 stop15h 30m
SWISS
Deal found 2/2$595
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 3/47:10 pm
LAX
-
LHR
1 stop14h 40m
SWISS
Wed 3/119:00 am
LHR
-
LAX
1 stop15h 35m
SWISS
Deal found 2/2$596
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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.
Wed 2/119:25 pm
SFO
-
LHR
1 stop14h 10m
Multiple Airlines
Wed 2/189:00 am
LHR
-
SFO
1 stop15h 30m
Multiple Airlines
Deal found 2/1$596
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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.
Fri 5/84:40 pm
LAX
-
LHR
1 stop21h 20m
TAP AIR PORTUGAL
Sat 5/237:50 pm
LHR
-
LAX
1 stop26h 05m
TAP AIR PORTUGAL
Deal found 2/1$597
This Booking.com deal was found by Cheapflights users on 2/1. 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 2/24:30 pm
SFO
-
LHR
Nonstop10h 10m
Virgin Atlantic
Tue 2/176:30 am
LHR
-
SFO
1 stop13h 20m
Virgin Atlantic
Deal found 2/1$597
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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.
Thu 3/57:10 pm
LAX
-
LHR
1 stop14h 40m
Multiple Airlines
Sun 3/87:40 am
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Deal found 2/1$598
This Ticket deal was found by Cheapflights users on 2/2. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/84:30 pm
SFO
-
LHR
Nonstop10h 20m
Virgin Atlantic
Tue 2/2411:40 am
LHR
-
SFO
Nonstop11h 00m
Virgin Atlantic
Deal found 2/2$598
This Booking.com deal was found by Cheapflights users on 2/3. 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.
Thu 3/54:35 pm
LAX
-
LHR
Nonstop10h 20m
Virgin Atlantic
Wed 3/186:30 am
LHR
-
LAX
1 stop13h 15m
Virgin Atlantic
Deal found 2/3$599

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$538
(United Airlines)

One-way from

$219
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$654

Good round-trip deal

$625 or less

Good one-way deal

$336 or less
Provider with most accurate pricing for Los Angeles-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for 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 February 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 February 3, 2026.
Use the filters below to find and compare flights from California to London Heathrow Airport that are best for you.

Fly from

California

Fly to

Heathrow

Route

Depart

Return

Price

RenoLondon

RNO - LHR

RNOLHR

Reno

Wed 5/13

5:30 am-10:00 am

2 stops20h 30m

London Heathrow

Fri 5/15

8:40 am-3:14 pm

2 stops38h 34m

$542

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 3/16

1:50 pm-7:25 am

Nonstop10h 35m

London Heathrow

Mon 3/23

7:40 am-3:50 pm

1 stop15h 10m

$619

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 3/5

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Thu 3/12

6:35 am-4:15 pm

1 stop16h 40m

$620

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 3/4

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Tue 3/10

6:35 am-4:15 pm

1 stop16h 40m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 3/1

1:20 pm-11:50 am

1 stop14h 30m

London Heathrow

Fri 3/13

11:10 am-8:35 pm

1 stop16h 25m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 3/3

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Sun 3/8

11:10 am-8:35 pm

1 stop16h 25m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 3/3

1:20 pm-11:50 am

1 stop14h 30m

London Heathrow

Fri 3/13

11:10 am-8:35 pm

1 stop16h 25m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 2/10

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Fri 2/20

11:10 am-7:35 pm

1 stop16h 25m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 3/24

1:20 pm-11:50 am

1 stop15h 30m

London Heathrow

Tue 3/31

7:25 am-2:30 pm

1 stop15h 05m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 2/18

4:30 pm-10:50 am

Nonstop10h 20m

London Heathrow

Mon 2/23

11:45 am-11:50 am

1 stop32h 05m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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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 $700). 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 February 3, 2026.

It’s optimal to fly from California to London Heathrow Airport in the afternoon. By choosing this option you can save up to 13% 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. Saturday 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 February 3, 2026.

The most flights from USCA to LHR are scheduled on a Monday (43 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (37 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, Lufthansa, and Finnair fly from California to London Heathrow Airport in about 16h 50m. The time it takes to get you to your destination can typically vary by up to 4h 22m. There are 5352 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 - London Heathrow, San Francisco - London Heathrow or Las Vegas Harry Reid Intl - 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 (88%), Austrian Airlines (88%) and United Airlines (88%).

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

    Looking at all options, your cheapest flight can be booked for $251. While the most popular route (Los Angeles - London Heathrow) can be booked for $503 on average, our data indicates $3,124 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 $700). 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
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for California to Heathrow

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 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$938FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$334Average$658FlexibilityNo cancel feeOn-time77%
SWISSCheapest$336Average$683FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$339Average$544FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$458Average$754FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$475Average$732FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$485Average$739FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$494Average$765FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$517Average$834FlexibilityNo cancel feeOn-time70%
DeltaCheapest$518Average$792FlexibilityNo cancel feeOn-timeN/A

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