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Cheap flights from California to London Heathrow Airport from £160

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 3 February 2026.

Sat 22/807:00
SMF
-
LHR
2 stops43h 00m
Multiple Airlines
Tue 25/806:55
LHR
-
SMF
2 stops18h 50m
Multiple Airlines
Deal found 2/2£382
Sun 1/216:30
SFO
-
LHR
Nonstop10h 10m
Virgin Atlantic
Tue 17/206:30
LHR
-
SFO
1 stop13h 20m
Virgin Atlantic
Deal found 1/2£434
Mon 9/318:30
LAX
-
LHR
1 stop14h 20m
Lufthansa
Mon 16/307:40
LHR
-
LAX
1 stop15h 35m
Lufthansa
Deal found 2/2£435
Sun 8/219:25
SFO
-
LHR
1 stop14h 25m
SWISS
Tue 24/209:00
LHR
-
SFO
1 stop15h 30m
SWISS
Deal found 2/2£435
Wed 4/319:10
LAX
-
LHR
1 stop14h 40m
SWISS
Wed 11/309:00
LHR
-
LAX
1 stop15h 35m
SWISS
Deal found 2/2£436
Wed 11/221:25
SFO
-
LHR
1 stop14h 10m
Multiple Airlines
Wed 18/209:00
LHR
-
SFO
1 stop15h 30m
Multiple Airlines
Deal found 2/2£436
Fri 8/516:40
LAX
-
LHR
1 stop21h 20m
TAP AIR PORTUGAL
Sat 23/519:50
LHR
-
LAX
1 stop26h 05m
TAP AIR PORTUGAL
Deal found 2/2£437
Mon 2/216:30
SFO
-
LHR
Nonstop10h 10m
Virgin Atlantic
Tue 17/206:30
LHR
-
SFO
1 stop13h 20m
Virgin Atlantic
Deal found 1/2£437
Thu 5/319:10
LAX
-
LHR
1 stop14h 40m
Multiple Airlines
Fri 13/307:40
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Deal found 1/2£437
Sun 8/216:30
SFO
-
LHR
Nonstop10h 20m
Virgin Atlantic
Tue 24/211:40
LHR
-
SFO
Nonstop11h 00m
Virgin Atlantic
Deal found 2/2£437
Thu 5/316:35
LAX
-
LHR
Nonstop10h 20m
Virgin Atlantic
Wed 18/306:30
LHR
-
LAX
1 stop13h 15m
Virgin Atlantic
Deal found 3/2£438
Sun 8/317:40
SFO
-
LHR
1 stop17h 00m
Scandinavian Airlines
Sun 15/318:40
LHR
-
SFO
1 stop27h 55m
Scandinavian Airlines
Deal found 3/2£438

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 3 February 2026.

Round-trip from

£435

One-way from

£160

Popular in

December

Cheapest in

September

Average price

£478

Good round-trip deal

£470 or less

Good one-way deal

£262 or less
Lufthansa
  • Lufthansa
  • 9/3-16/3
  • 2 total stops
  • 29h 55m total
  • California to London
Search Deals
United Airlines
  • United Airlines
  • 3/5
  • 1 total stop
  • 22h 35m total
  • California to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 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 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

 
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 3 February 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

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 27/4

16:45-16:25

2 stops15h 40m

London Heathrow

Mon 4/5

21:05-14:40

2 stops25h 35m

£442

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 1/3

13:20-11:50

1 stop14h 30m

London Heathrow

Fri 13/3

11:10-20:35

1 stop16h 25m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 5/3

16:30-10:50

Nonstop10h 20m

London Heathrow

Sun 8/3

11:45-12:50

1 stop32h 05m

£454

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 6/3

10:15-07:25

1 stop13h 10m

London Heathrow

Wed 11/3

09:00-17:35

1 stop15h 35m

£457

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 3/3

12:25-11:50

1 stop15h 25m

London Heathrow

Tue 10/3

06:35-20:50

2 stops21h 15m

£461

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Thu 5/3

12:25-11:50

1 stop15h 25m

London Heathrow

Mon 9/3

07:40-20:50

2 stops20h 10m

£461

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 3/3

07:08-09:10

2 stops18h 02m

London Heathrow

Mon 16/3

07:40-22:30

2 stops21h 50m

£463

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Wed 25/2

14:07-12:15

1 stop14h 08m

London Heathrow

Mon 9/3

18:10-21:21

2 stops34h 11m

£464

BurbankLondon

BUR - LHR

BURLHR

Burbank Bob Hope

Wed 18/3

10:05-07:25

1 stop14h 20m

London Heathrow

Wed 25/3

09:00-21:59

2 stops19h 59m

£464

BurbankLondon

BUR - LHR

BURLHR

Burbank Bob Hope

Tue 10/3

15:30-12:00

1 stop13h 30m

London Heathrow

Tue 17/3

06:35-19:23

2 stops19h 48m

£464

Flights are sorted by cheapest return flights first.

Deals found on 2/2

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, December is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of £343). Flying from California to London Heathrow Airport in June is currently the most expensive (average of £512). 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 3 February 2026.

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 17% on your trip compared to booking a flight at midday.

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 9 March 2025.

Travellers seeking maximum savings on their California to London Heathrow Airport flight should consider departing on Sunday at midday when fares are most often at their lowest. Monday at midday 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 3 February 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 for a return flight 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?

    For as low as £454, Scandinavian Airlines can have you in London Heathrow Airport from California in 10h 20m. Airlines will cover a distance of 5350 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 £119. However, be on the lookout for offers from Scandinavian Airlines and JetBlue, 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 Las Vegas Harry Reid Intl - 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: Air Canada (88%), Austrian Airlines (88%), United Airlines (88%).

  • 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 £1,123, our data indicates the cheapest price to be £155. The most popular route (Los Angeles - London Heathrow), is priced around £368.

  • 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, December is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of £343). Flying from California to London Heathrow Airport in June is currently the most expensive (average of £512). 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
Luton
Northampton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Swindon
Bedford
Chelmsford
Eastbourne
Crawley
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 858,174 searches. Data last updated 3 February 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£309Average£560FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£358Average£524FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£361Average£521FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£361Average£536FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£369Average£500FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£379Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£386Average£587FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£388Average£553FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£397Average£673FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£417Average£518FlexibilityNo 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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