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Cheap flights from California to London Heathrow Airport from £138

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Find flight deals from California to Heathrow

Enter your travel dates to find the best prices.

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 15 October 2025.

Wed 26/1113:35SJC - LHR
1 stop12h 25mVirgin Atlantic
Wed 3/1210:45LHR - SJC
1 stop17h 56mVirgin Atlantic
Deal found 12/10£379
Tue 28/1017:45LAX - LHR
1 stop34h 40mTAP AIR PORTUGAL
Wed 5/1113:40LHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Deal found 13/10£389
Sat 8/1116:45LAX - LHR
1 stop35h 55mTAP AIR PORTUGAL
Wed 19/1118:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Deal found 13/10£393
Mon 17/1119:30LAX - LHR
2 stops37h 30mScandinavian Airlines
Thu 20/1106:40LHR - LAX
1 stop18h 20mScandinavian Airlines
Deal found 14/10£394
Tue 18/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Thu 27/1106:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Deal found 13/10£394
Fri 14/1113:10LAX - LHR
2 stops18h 50mScandinavian Airlines
Sun 16/1106:40LHR - LAX
2 stops18h 20mScandinavian Airlines
Deal found 14/10£395
Sat 29/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Thu 11/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Deal found 14/10£397
Tue 18/1116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Tue 10/206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Deal found 14/10£398
Fri 7/1113:12LAX - LHR
2 stops18h 48mScandinavian Airlines
Wed 19/1106:40LHR - LAX
1 stop18h 20mScandinavian Airlines
Deal found 13/10£400
Thu 27/1116:45LAX - LHR
1 stop20h 50mTAP AIR PORTUGAL
Sat 6/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Deal found 13/10£402
Fri 7/1113:12LAX - LHR
2 stops18h 48mScandinavian Airlines
Sat 22/1115:35LHR - LAX
2 stops33h 25mScandinavian Airlines
Deal found 13/10£403
Fri 7/1113:12LAX - LHR
2 stops18h 48mScandinavian Airlines
Sun 23/1106:40LHR - LAX
2 stops18h 20mScandinavian Airlines
Deal found 14/10£403

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 15 October 2025.

Round-trip from

£379

One-way from

£138

Popular in

December

Cheapest in

September

Average price

£462

Good round-trip deal

£442 or less

Good one-way deal

£288 or less
Virgin Atlantic
  • Virgin Atlantic
  • 26/11-3/12
  • 2 total stops
  • 30h 21m total
  • California to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 15/11
  • 1 total stop
  • 21h 55m total
  • California to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return 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

 
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 15 October 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

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 23/1

07:45-09:20

2 stops17h 35m

London Heathrow

Fri 30/1

07:05-17:00

2 stops17h 55m

£422

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 28/2

13:45-17:40

2 stops19h 55m

London Heathrow

Mon 9/3

06:40-18:00

2 stops18h 20m

£425

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 12/1

06:20-09:20

2 stops19h 00m

London Heathrow

Sat 24/1

15:35-17:00

2 stops33h 25m

£430

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Tue 11/11

20:45-14:40

Nonstop9h 55m

London Heathrow

Tue 18/11

08:40-14:15

1 stop13h 35m

£435

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 3/12

20:45-14:40

Nonstop9h 55m

London Heathrow

Tue 9/12

08:40-14:15

1 stop13h 35m

£435

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 16/11

06:30-07:05

1 stop16h 35m

London Heathrow

Tue 25/11

08:40-14:15

1 stop13h 35m

£438

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Wed 5/11

09:50-08:45

2 stops14h 55m

London Heathrow

Wed 12/11

06:30-15:55

2 stops17h 25m

£439

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 26/2

07:00-09:20

2 stops18h 20m

London Heathrow

Sat 7/3

10:20-22:55

2 stops20h 35m

£440

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 23/1

07:45-16:00

2 stops24h 15m

London Heathrow

Sun 1/2

10:20-17:00

1 stop14h 40m

£442

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/11

00:35-07:05

1 stop22h 30m

London Heathrow

Wed 12/11

11:40-14:40

Nonstop11h 00m

£443

Flights are sorted by cheapest return flights first.

Deals found on 14/10

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 £328). Flying from California to London Heathrow Airport in June is currently the most expensive (average of £525). 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 15 October 2025.

A simple way to save on the total cost of your ticket is to fly from California to London Heathrow Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking 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 return from California to Heathrow. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their California to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday evenings 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 15 October 2025.

The most flights from USCA to LHR are scheduled on a Monday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 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 £435, Scandinavian Airlines can have you in London Heathrow Airport from California in 9h 55m. Airlines will cover a distance of 5213 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 WestJet, with whom users have recently found tickets for as low as £184. However, be on the lookout for offers from JetBlue and Scandinavian Airlines, 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 San Diego - 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 (95%), Air France (95%), Delta (95%).

  • 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 £1,190, our data indicates the cheapest price to be £265. The most popular route (Los Angeles - London Heathrow), is priced around £319.

  • 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 £328). Flying from California to London Heathrow Airport in June is currently the most expensive (average of £525). 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
Slough
Gatwick
Hounslow
Northampton
Luton
Wembley
Deal
Ilford
Crawley
Hayes
Watford
Winchester
Swindon
Chichester
Romford
Ipswich
Brentford
Dartford

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 858,174 searches. Data last updated 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£306Average£451FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£322Average£533FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£372Average£643FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£373Average£510FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£379Average£514FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£390Average£608FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£397Average£565FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£399Average£639FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£423Average£697FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£429Average£529FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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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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