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$183+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Find 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 October 13, 2025.

This Ticket deal was found by Cheapflights users on 10/12. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:35 pmSJC - LHR
1 stop12h 25mVirgin Atlantic
Wed 12/310:45 amLHR - SJC
1 stop17h 56mVirgin Atlantic
Deal found 10/12$505
This FlightHub deal was found by Cheapflights users on 10/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:45 pmLAX - LHR
1 stop34h 40mTAP AIR PORTUGAL
Wed 11/51:40 pmLHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Deal found 10/11$518
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/184:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Thu 11/276:00 amLHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Deal found 10/11$523
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:30 pmLAX - LHR
1 stop29h 50mScandinavian Airlines
Wed 11/197:05 amLHR - LAX
2 stops17h 55mScandinavian Airlines
Deal found 10/12$528
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/274:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Sat 12/66:00 amLHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Deal found 10/12$530
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:12 pmLAX - LHR
2 stops18h 48mScandinavian Airlines
Wed 11/196:40 amLHR - LAX
1 stop18h 20mScandinavian Airlines
Deal found 10/13$533
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:45 pmLAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Wed 12/101:40 pmLHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Deal found 10/12$535
This Gurufare deal was found by Cheapflights users on 10/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/274:45 pmLAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Fri 12/57:55 pmLHR - LAX
1 stop27h 05mTAP AIR PORTUGAL
Deal found 10/12$537
This FlightHub deal was found by Cheapflights users on 10/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/64:45 pmLAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Mon 11/106:30 pmLHR - LAX
1 stop28h 30mTAP AIR PORTUGAL
Deal found 10/13$540
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:10 pmLAX - LHR
2 stops18h 50mScandinavian Airlines
Sat 11/2210:20 amLHR - LAX
1 stop14h 40mScandinavian Airlines
Deal found 10/13$542
This SmartFares deal was found by Cheapflights users on 10/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:10 pmLAX - LHR
2 stops18h 50mScandinavian Airlines
Mon 11/176:40 amLHR - LAX
1 stop18h 20mScandinavian Airlines
Deal found 10/13$545
This lastminute.com deal was found by Cheapflights users on 10/12. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/132:21 pmSJC - LHR
1 stop12h 59mVirgin Atlantic
Tue 10/2811:05 amLHR - SJC
1 stop16h 21mVirgin Atlantic
Deal found 10/12$562

Cheap flight deals from California to Heathrow

Keep the following information in mind while searching for California to Heathrow flight deals. Data was last updated October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$490
(eDestinos)

One-way from

$183
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$615

Good round-trip deal

$673 or less

Good one-way deal

$397 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 ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 13, 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

Mon 1/12

12:46 pm-12:35 pm

1 stop15h 49m

London Heathrow

Mon 2/2

12:50 pm-10:35 pm

1 stop17h 45m

$510

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Tue 1/13

9:05 am-7:00 am

1 stop13h 55m

London Heathrow

Sat 2/7

9:25 am-8:00 pm

1 stop18h 35m

$510

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 2/17

8:10 am-7:00 am

1 stop14h 50m

London Heathrow

Sat 2/28

9:25 am-5:38 pm

1 stop16h 13m

$529

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 2/4

5:40 pm-12:20 pm

Nonstop10h 40m

London Heathrow

Mon 2/16

4:55 pm-8:25 pm

Nonstop11h 30m

$544

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 2/8

7:20 pm-2:00 pm

Nonstop10h 40m

London Heathrow

Sun 2/22

4:55 pm-8:25 pm

Nonstop11h 30m

$545

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 2/15

1:45 pm-4:00 pm

2 stops18h 15m

London Heathrow

Sat 2/28

3:35 pm-5:00 pm

2 stops33h 25m

$572

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 12/3

8:45 pm-2:40 pm

Nonstop9h 55m

London Heathrow

Tue 12/9

8:40 am-2:15 pm

1 stop13h 35m

$579

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Wed 11/5

9:50 am-8:45 am

2 stops14h 55m

London Heathrow

Wed 11/12

6:30 am-3:55 pm

2 stops17h 25m

$584

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 11/9

9:05 pm-2:55 pm

Nonstop9h 50m

London Heathrow

Thu 11/20

4:00 pm-6:50 pm

Nonstop10h 50m

$585

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 11/10

8:45 pm-2:40 pm

Nonstop9h 55m

London Heathrow

Thu 11/20

4:00 pm-6:50 pm

Nonstop10h 50m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $436). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $699). 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 October 13, 2025.

It’s optimal to fly from California to London Heathrow Airport in the afternoon. By choosing this option you can save up to 4% 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 October 13, 2025.

The most flights from USCA to LHR are scheduled on a Friday (56 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (48 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 Alaska Airlines, Delta, and KLM fly from California to London Heathrow Airport in about 9h 55m. The time it takes to get you to your destination can typically vary by up to 5h. There are 5213 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?

    $304 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Alaska Airlines and TAP AIR PORTUGAL, with prices starting from $318 and $342, 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 KLM (95%), Air France (95%) and Delta (95%).

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

    Looking at all options, your cheapest flight can be booked for $347. While the most popular route (Los Angeles - London Heathrow) can be booked for $424 on average, our data indicates $3,094 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, January is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $436). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $699). 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
Hounslow
Hayes
Ilford
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley

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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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$904FlexibilityNo cancel feeOn-time62%
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
Scandinavian AirlinesCheapest$333Average$657FlexibilityNo cancel feeOn-time77%
SWISSCheapest$336Average$709FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$363Average$890FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$427Average$595FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$463Average$745FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$469Average$877FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$476Average$766FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$491Average$707FlexibilityNo cancel feeOn-time76%

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