What is the cheapest airline that flies from California to London Heathrow?

Virgin Atlantic, KLM, and British Airways are the most popular carriers operating from California to London Heathrow

How many flights depart from California to London Heathrow Airport on average per day?

90 flights are operational daily from California to London Heathrow Airport as of December 2025. The most popular departure time for this route is 17:00, with 51% of flights per day taking off in the evening.

How many flights depart from California to London Heathrow Airport on average per week?

As of December 2025, there are 636 flights per week flying from California to London Heathrow Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

Which airlines fly to London Heathrow Airport?

Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from California according to our data. Virgin Atlantic is the first choice among our users, with 42% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 12 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London Heathrow Airport?

If you’re flying from a popular airport in California, such as San Francisco or Los Angeles, and flying into London Heathrow Airport, then you can expect flight times to average 10h 10m and 10h 20m, respectively.

How many operators does momondo search for flights from California to London Heathrow Airport?

As of December 2025, there are 12 operators available to choose from for flights from California to London Heathrow Airport.

How old do you have to be to fly from California to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£139 Cheap Flights from California to London Heathrow Airport in 2025/26

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08:40 - 09:40

SJC

LHR

17h 00m1 stop

06:35 - 20:56

LHR

SJC

22h 21m2 stops

£446Lufthansa

Tue, 13 Jan - Sat, 31 Jan

10:00 - 12:00

SNA

LHR

18h 00m1 stop

07:40 - 20:42

LHR

SNA

21h 02m2 stops

£446Lufthansa

Wed, 21 Jan - Mon, 2 Feb

13:35 - 11:15

SFO

LHR

13h 40m1 stop

20:15 - 14:50

LHR

SFO

26h 35m1 stop

£446Lufthansa

Sun, 8 Feb - Sat, 14 Feb

12:55 - 10:40

SFO

LHR

13h 45m1 stop

08:40 - 16:15

LHR

SFO

15h 35m1 stop

£447Multiple Airlines

Wed, 15 Apr - Wed, 22 Apr

16:40 - 16:25

SFO

LHR

15h 45m2 stops

21:05 - 14:35

LHR

SFO

25h 30m2 stops

£448Scandinavian Airlines

Sun, 15 Feb - Sun, 22 Feb

17:40 - 17:40

SFO

LHR

17h 00m1 stop

19:50 - 14:40

LHR

SFO

26h 50m2 stops

£449Scandinavian Airlines

Mon, 23 Mar - Mon, 13 Apr

21:05 - 19:40

SFO

LHR

14h 35m1 stop

08:40 - 16:15

LHR

SFO

15h 35m1 stop

£450Multiple Airlines

Sun, 10 May - Wed, 20 May

19:25 - 17:50

SFO

LHR

14h 25m1 stop

06:00 - 16:30

LHR

SFO

18h 30m1 stop

£452SWISS

Tue, 10 Feb - Sun, 1 Mar

08:30 - 06:40

LAS

LHR

14h 10m1 stop

12:05 - 21:57

LHR

LAS

17h 52m1 stop

£453Austrian Airlines

Fri, 16 Jan - Fri, 23 Jan

19:00 - 17:50

LAS

LHR

14h 50m1 stop

08:45 - 16:25

LHR

LAS

15h 40m1 stop

£455SWISS

Tue, 21 Apr - Tue, 28 Apr

Lufthansa flights from California to London Heathrow Airport

Our best Lufthansa deals on California to London Heathrow Airport flight tickets

Lufthansa

13 Jan

SJC08:40San Jose

17h 00m

1 stop

LHR09:40London Heathrow

31 Jan

LHR06:35London Heathrow

22h 21m

2 stops

SJC20:56San Jose

£446

Find similar

Lufthansa

19 Mar

SFO14:35San Francisco

22h 00m

1 stop

LHR19:35London Heathrow

30 Mar

LHR20:25London Heathrow

26h 10m

1 stop

SFO14:35San Francisco

£449

Find similar

Lufthansa

30 Dec

SFO08:25San Francisco

13h 30m

1 stop

LHR05:55London Heathrow

26 Jan

LHR15:50London Heathrow

28h 50m

2 stops

SFO12:40San Francisco

£450

Find similar

SWISS flights from California to London Heathrow Airport

Our best SWISS deals on California to London Heathrow Airport flight tickets

SWISS

10 Feb

SFO19:25San Francisco

14h 25m

1 stop

LHR17:50London Heathrow

1 Mar

LHR06:00London Heathrow

18h 30m

1 stop

SFO16:30San Francisco

£452

Find similar

SWISS

21 Apr

LAS19:00Las Vegas Harry Reid Intl

14h 50m

1 stop

LHR17:50London Heathrow

28 Apr

LHR08:45London Heathrow

15h 40m

1 stop

LAS16:25Las Vegas Harry Reid Intl

£455

Find similar

SWISS

31 Dec

LAX19:10Los Angeles

14h 40m

1 stop

LHR17:50London Heathrow

22 Jan

LHR09:00London Heathrow

15h 35m

1 stop

LAX16:35Los Angeles

£467

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from California to London Heathrow Airport that are best for you.

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Fly to

Route

Depart

Return

Price

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Tue 13/1

08:40-09:40

1 stop17h 00m

London Heathrow

Sat 31/1

06:35-20:56

2 stops22h 21m

£446

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 21/1

10:00-12:00

1 stop18h 00m

London Heathrow

Mon 2/2

07:40-20:42

2 stops21h 02m

£446

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 8/2

13:35-11:15

1 stop13h 40m

London Heathrow

Sat 14/2

20:15-14:50

1 stop26h 35m

£446

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 15/4

12:55-10:40

1 stop13h 45m

London Heathrow

Wed 22/4

08:40-16:15

1 stop15h 35m

£447

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 15/2

16:40-16:25

2 stops15h 45m

London Heathrow

Sun 22/2

21:05-14:35

2 stops25h 30m

£448

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 23/3

17:40-17:40

1 stop17h 00m

London Heathrow

Mon 13/4

19:50-14:40

2 stops26h 50m

£449

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 10/5

21:05-19:40

1 stop14h 35m

London Heathrow

Wed 20/5

08:40-16:15

1 stop15h 35m

£450

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 10/2

19:25-17:50

1 stop14h 25m

London Heathrow

Sun 1/3

06:00-16:30

1 stop18h 30m

£452

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Fri 16/1

08:30-06:40

1 stop14h 10m

London Heathrow

Fri 23/1

12:05-21:57

1 stop17h 52m

£453

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Tue 21/4

19:00-17:50

1 stop14h 50m

London Heathrow

Tue 28/4

08:45-16:25

1 stop15h 40m

£455

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How to get the cheapest flight ticket from California to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from California to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £491. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from California averaging around £493.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from California is on a Monday. momondo users have found tickets for Monday departures for as low as £490. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £600.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from California to London Heathrow Airport in the afternoon for as low as £533. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £645 on average. Flights to London Heathrow Airport from California at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest California to London Heathrow flight route?

Fly from Los Angeles to London Heathrow for the best California - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from California when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £577 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from California for as low as £533 on momondo.

What cabin class options are available on California to London Heathrow flights?

There are 4 cabin classes available to choose from on California to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on California to London Heathrow Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a California to London Heathrow Airport flight.

Cheap California to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to London Heathrow Airport

Best price found	£298
Fastest flight time	9h 50m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from California in the past 72 hours is £298. The best return flight deal from California to London Heathrow Airport found on momondo in the last 72 hours is £466.

The fastest flight from California to London Heathrow Airport takes 9h 50m

Direct flights go from California to London Heathrow Airport every day.

Search flight deals

When did momondo last update prices for flights from California to London Heathrow Airport?
Prices for flights from California to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from California to London Heathrow Airport?
As of December 2025, there are 12 operators available to choose from for flights from California to London Heathrow Airport.
How old do you have to be to fly from California to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from California to London Heathrow Airport?
Based on momondo bookings for flights between California and London Heathrow Airport, the leading plane model is Boeing 777-300ER, making up 20.22% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 20.13%, Boeing 777 with 18.93%, and Airbus A380-800 with 16.53%.

Best airlines flying from California to London Heathrow Airport

Compare and see reviews for airlines that fly from California to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom £316	Free Cancellation	Rating 7.2 2,092 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom £357	Free Cancellation	Rating 7.4 1,608 reviews	Search Scandinavian Airlines flights
KLM	PriceFrom £366	Free Cancellation	Rating 7.7 1,428 reviews	Search KLM flights
Lufthansa	PriceFrom £370	Free Cancellation	Rating 6.8 7,637 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom £370	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Aer Lingus	PriceFrom £377	Free Cancellation	Rating 7.2 1,399 reviews	Search Aer Lingus flights
British Airways	PriceFrom £388	Free Cancellation	Rating 6.7 7,586 reviews	Search British Airways flights
Air France	PriceFrom £395	Free Cancellation	Rating 7.4 1,508 reviews	Search Air France flights
United Airlines	PriceFrom £397	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Finnair	PriceFrom £406	Free Cancellation	Rating 7.6 1,338 reviews	Search Finnair flights

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Why use momondo?

Why should I use momondo to find a flight deal from California to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from California to London for you.

Can I find flights from California to London with flexible booking policies on momondo?

Flights from California to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from California to London?

Once you have performed a search for California to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from California to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from California to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

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Cheap flights from California to London from £139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to London departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from California to London

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Lufthansa flights from California to London Heathrow Airport

Our best Lufthansa deals on California to London Heathrow Airport flight tickets

SWISS flights from California to London Heathrow Airport

Our best SWISS deals on California to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from California to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from California to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest California to London Heathrow flight route?

Fly from Los Angeles to London Heathrow for the best California - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on California to London Heathrow flights?

There are 4 cabin classes available to choose from on California to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on California to London Heathrow Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a California to London Heathrow Airport flight.

What is the cheapest airline that flies from California to London Heathrow?

Virgin Atlantic, KLM, and British Airways are the most popular carriers operating from California to London Heathrow

Which airlines fly to London Heathrow Airport?

How many flights depart from California to London Heathrow Airport on average per day?

90 flights are operational daily from California to London Heathrow Airport as of December 2025. The most popular departure time for this route is 17:00, with 51% of flights per day taking off in the evening.

How many flights depart from California to London Heathrow Airport on average per week?

As of December 2025, there are 636 flights per week flying from California to London Heathrow Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

How long does it take to fly to London Heathrow Airport?

If you’re flying from a popular airport in California, such as San Francisco or Los Angeles, and flying into London Heathrow Airport, then you can expect flight times to average 10h 10m and 10h 20m, respectively.

Cheap California to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to London Heathrow Airport

Best price found

Fastest flight time

Direct flights

When did momondo last update prices for flights from California to London Heathrow Airport?

How many operators does momondo search for flights from California to London Heathrow Airport?

How old do you have to be to fly from California to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular plane model from California to London Heathrow Airport?

Best airlines flying from California to London Heathrow Airport

Compare and see reviews for airlines that fly from California to London Heathrow Airport with momondo

Travelling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from California to London?

Can I find flights from California to London with flexible booking policies on momondo?

How can momondo help me find flights from California to London?

I’m not ready to book a flight from California to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo