HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$194+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from California to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/6. 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 12/77:25 pmSFO - LHR
1 stop14h 25mSWISS
Tue 12/166:00 amLHR - SFO
1 stop18h 30mSWISS
Deal found 12/6$595
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/108:30 amSFO - LHR
1 stop13h 25mMultiple Airlines
Tue 12/167:00 amLHR - SFO
2 stops17h 30mMultiple Airlines
Deal found 12/7$599
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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 12/104:15 pmSFO - LHR
1 stop13h 15mLufthansa
Thu 1/153:50 pmLHR - SFO
2 stops36h 20mLufthansa
Deal found 12/7$601
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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.
Tue 12/304:10 pmSFO - LHR
1 stop13h 20mMultiple Airlines
Mon 1/269:00 amLHR - SFO
1 stop15h 30mMultiple Airlines
Deal found 12/7$603
This United Airlines deal was found by Cheapflights users on 12/7. 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.
Mon 12/85:25 pmSFO - LHR
Nonstop10h 35mUnited Airlines
Tue 12/1611:10 amLHR - SFO
1 stop16h 25mUnited Airlines
Deal found 12/7$604
This United Airlines deal was found by Cheapflights users on 12/5. 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 12/315:25 pmSFO - LHR
Nonstop10h 35mUnited Airlines
Tue 1/1311:10 amLHR - SFO
1 stop16h 25mUnited Airlines
Deal found 12/5$605
This United Airlines deal was found by Cheapflights users on 12/7. 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.
Tue 12/911:20 amSFO - LHR
1 stop16h 30mUnited Airlines
Mon 12/151:45 pmLHR - SFO
1 stop34h 45mUnited Airlines
Deal found 12/7$606
This Air France deal was found by Cheapflights users on 12/7. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:40 pmSFO - LHR
Nonstop10h 10mMultiple Airlines
Tue 12/166:30 amLHR - SFO
1 stop13h 20mMultiple Airlines
Deal found 12/7$607
This United Airlines deal was found by Cheapflights users on 12/5. 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 12/318:25 amSFO - LHR
1 stop14h 45mUnited Airlines
Fri 1/1611:10 amLHR - SFO
1 stop16h 25mUnited Airlines
Deal found 12/5$608
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Thu 12/118:25 amSFO - LHR
1 stop14h 15mMultiple Airlines
Wed 12/246:00 amLHR - SFO
1 stop18h 30mMultiple Airlines
Deal found 12/7$609
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/98:30 amSFO - LHR
1 stop13h 25mBrussels Airlines
Tue 12/237:25 amLHR - SFO
1 stop19h 51mBrussels Airlines
Deal found 12/7$611
This Booking.com deal was found by Cheapflights users on 12/5. 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 12/74:30 pmSFO - LHR
Nonstop10h 10mVirgin Atlantic
Tue 12/2311:40 amLHR - SFO
Nonstop11h 00mVirgin Atlantic
Deal found 12/5$613

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 December 8, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$560
(Kiwi.com)

One-way from

$194
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,034

Good round-trip deal

$639 or less

Good one-way deal

$393 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 ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 2025.
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

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Tue 3/10

3:37 pm-9:40 pm

2 stops23h 03m

London Heathrow

Sun 3/15

10:20 am-10:02 pm

2 stops18h 42m

$601

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 2/18

1:08 pm-5:40 pm

2 stops20h 32m

London Heathrow

Mon 2/23

6:40 am-8:27 pm

2 stops21h 47m

$601

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 2/4

1:10 pm-9:40 pm

2 stops24h 30m

London Heathrow

Mon 2/9

6:40 am-8:55 pm

2 stops22h 15m

$601

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sat 1/31

1:20 pm-5:40 pm

2 stops20h 20m

London Heathrow

Thu 3/26

6:40 am-12:17 am

2 stops24h 37m

$601

RenoLondon

RNO - LHR

RNOLHR

Reno

Tue 1/13

10:39 am-5:05 pm

2 stops22h 26m

London Heathrow

Tue 1/27

6:35 am-5:43 pm

2 stops19h 08m

$605

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 12/31

12:50 pm-7:25 am

Nonstop10h 35m

London Heathrow

Thu 1/15

9:00 am-4:30 pm

1 stop15h 30m

$605

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Thu 2/12

12:30 pm-11:50 am

1 stop15h 20m

London Heathrow

Fri 2/20

6:35 am-11:52 am

2 stops37h 17m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 2/18

12:50 pm-7:25 am

Nonstop10h 35m

London Heathrow

Mon 2/23

7:40 am-2:50 pm

1 stop15h 10m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 2/2

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Fri 2/20

6:35 am-2:50 pm

1 stop16h 15m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 2/4

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Mon 2/9

7:40 am-2:50 pm

1 stop15h 10m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 60 results
1
2
3
...
6

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 $698). 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 December 8, 2025.

It’s optimal to fly from California to London Heathrow Airport in the afternoon. By choosing this option you can save up to 2% 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 December 16, 2024.

Travelers seeking maximum savings on their California to London Heathrow Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday afternoons 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 December 8, 2025.

The most flights from USCA to LHR are scheduled on a Monday (52 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 on average).

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 Brussels Airlines, Scandinavian Airlines, and Lufthansa fly from California to London Heathrow Airport in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 5h 50m. There are 5437 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 Scandinavian Airlines, with prices starting from $168 and $172, 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 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 (90%), Austrian Airlines (90%) and United Airlines (90%).

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

    Looking at all options, your cheapest flight can be booked for $264. While the most popular route (Los Angeles - London Heathrow) can be booked for $419 on average, our data indicates $2,912 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 $698). 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
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

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 Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Gatwick flights
Boston to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Gatwick flights
Los Angeles to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
John F Kennedy Intl to Luton flights
Newark to London City flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Hobby to Heathrow flights
Newark to Stansted flights
Boston to London City flights
Newark to Luton flights
Dulles Intl to London City flights
Miami to Heathrow flights
Philadelphia to Heathrow flights
Los Angeles to Gatwick flights
Orlando to Heathrow flights
Denver to Heathrow flights
San Francisco to Gatwick flights
Baltimore to Gatwick flights
Los Angeles to London City flights
Reagan-National to Gatwick flights
Dulles Intl to Stansted flights
Minneapolis to Heathrow flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to Gatwick flights
San Francisco to London City flights
Tampa to Heathrow flights
O'Hare Intl to London City flights
Boston to Stansted flights
Detroit to Heathrow flights
Sky Harbor Intl to Heathrow flights
Seattle to Gatwick flights
Dallas/Fort Worth to Gatwick flights
Raleigh to Heathrow flights
Dulles Intl to Luton flights

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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$901FlexibilityNo cancel feeOn-time62%
SWISSCheapest$300Average$695FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$362Average$668FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$371Average$586FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$427Average$1,034FlexibilityNo cancel feeOn-time76%
Norse Atlantic UKCheapest$463Average$755FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$469Average$832FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$476Average$754FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$487Average$736FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$494Average$856FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.