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Cheap flights from California to London Heathrow Airport from £125

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
1 Sep — 8 Sep1
1 adult

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 27 August 2025.

Round-trip from

£356

One-way from

£125

Popular in

December

Cheapest in

August

Average price

£456

Good round-trip deal

£389 or less

Good one-way deal

£287 or less
Virgin Atlantic
  • Virgin Atlantic
  • 21/10-28/10
  • 4 total stops
  • 38h 08m total
  • California to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 27/11
  • 1 total stop
  • 34h 40m total
  • California to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from California to London Heathrow.
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Price to beat on a one-way flight from California to London Heathrow.
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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 27 August 2025.

Tue 21/1007:00LGB - LHR
2 stops20h 20mVirgin Atlantic
Tue 28/1010:45LHR - LGB
2 stops17h 48mVirgin Atlantic
Deal found 24/8£356
Sun 26/1019:50LAX - LHR
1 stop17h 50mFinnair
Tue 4/1107:30LHR - LAX
1 stop17h 35mFinnair
Deal found 26/8£367
Sun 5/1010:26LAX - LHR
1 stop14h 59mIberia
Tue 14/1020:50LHR - LAX
1 stop24h 45mIberia
Deal found 24/8£369
Tue 18/1111:28LAX - LHR
1 stop14h 32mIberia
Thu 4/1209:55LHR - LAX
1 stop17h 15mIberia
Deal found 26/8£370
Sun 7/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Tue 23/914:30LHR - LAX
Nonstop11h 15mVirgin Atlantic
Deal found 26/8£370
Sun 28/916:40LAX - LHR
1 stop17h 05mTAP AIR PORTUGAL
Wed 29/1013:40LHR - LAX
1 stop33h 20mTAP AIR PORTUGAL
Deal found 26/8£372
Mon 1/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Tue 16/914:30LHR - LAX
Nonstop11h 15mVirgin Atlantic
Deal found 25/8£373
Wed 3/913:25LAX - LHR
Nonstop10h 35mIberia
Mon 8/920:50LHR - LAX
1 stop29h 15mIberia
Deal found 26/8£373
Sun 7/913:25LAX - LHR
Nonstop10h 35mIberia
Tue 23/920:00LHR - LAX
1 stop28h 05mIberia
Deal found 26/8£375
Tue 2/914:53LAX - LHR
1 stop15h 32mIberia
Tue 9/920:50LHR - LAX
1 stop29h 15mIberia
Deal found 25/8£376
Sun 14/909:05LAX - LHR
1 stop17h 45mIberia
Thu 2/1020:50LHR - LAX
2 stops34h 09mIberia
Deal found 25/8£376
Mon 20/1022:50LAX - LHR
Nonstop10h 25mDelta
Fri 31/1008:55LHR - LAX
1 stop15h 10mDelta
Deal found 24/8£377

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 27 August 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

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Tue 21/10

07:00-11:20

2 stops20h 20m

London Heathrow

Tue 28/10

10:45-21:33

2 stops17h 48m

£356

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 26/10

19:50-20:40

1 stop17h 50m

London Heathrow

Tue 4/11

07:30-17:05

1 stop17h 35m

£367

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 7/10

22:50-17:15

Nonstop10h 25m

London Heathrow

Fri 24/10

08:40-14:50

1 stop14h 10m

£378

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 7/10

22:50-17:15

Nonstop10h 25m

London Heathrow

Fri 24/10

08:40-14:50

1 stop14h 10m

£378

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 14/10

15:45-10:15

Nonstop10h 30m

London Heathrow

Fri 24/10

06:30-14:50

1 stop16h 20m

£378

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 23/9

22:50-17:15

Nonstop10h 25m

London Heathrow

Thu 2/10

06:30-14:50

1 stop16h 20m

£378

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 13/10

15:30-10:00

Nonstop10h 30m

London Heathrow

Thu 23/10

06:30-14:50

1 stop16h 20m

£378

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 21/9

15:30-10:00

Nonstop10h 30m

London Heathrow

Tue 14/10

11:30-18:10

1 stop14h 40m

£378

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Mon 22/9

13:15-14:15

2 stops17h 00m

London Heathrow

Tue 7/10

17:25-21:33

2 stops36h 08m

£381

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 1/12

16:40-16:00

1 stop15h 20m

London Heathrow

Wed 21/1

19:30-14:35

1 stop27h 05m

£383

Flights are sorted by cheapest return flights first.

Deals found on 25/8

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 return 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 £112). Flying from California to London Heathrow Airport in August is currently the most expensive (average of £164). 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 27 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to London Heathrow Airport as you normally would.

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 27 August 2025.

The most flights from USCA to LHR are scheduled on a Monday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 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?

    For as low as £378, Virgin Atlantic can have you in London Heathrow Airport from California in 10h 25m. Airlines will cover a distance of 5439 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £125. However, be on the lookout for offers from WestJet and Virgin Atlantic, as they are both options that can get you from California to London Heathrow Airport for a low price.

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

    Most travelers choose Los Angeles - London Heathrow, San Francisco - London Heathrow or Ontario - London Heathrow when deciding on the best route from California to London Heathrow Airport.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from California to London Heathrow Airport on time: KLM (94%), Air France (94%), Delta (94%).

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

    Looking for the cheapest flight from California to London Heathrow Airport? While on average our users pay £1,325, our data indicates the cheapest price to be £277. The most popular route (Los Angeles - London Heathrow), is priced around £343.

  • 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 holiday 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 £112). Flying from California to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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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 858,174 searches. Data last updated 27 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£303Average£444FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£318Average£624FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£363Average£498FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£367Average£632FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£375Average£564FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£385Average£612FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£390Average£405FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapest£392Average£558FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£394Average£643FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£418Average£668FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from California to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from California today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from California to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from California to Heathrow.

Can Cheapflights find flights from California to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from California to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from California to Heathrow become cheaper?

Of course! You can now track prices for flights from California to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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