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

114 flights are operational daily from California to London Heathrow Airport as of September 2025. The most popular departure time for this route is 16:00, with 56% of flights per day taking off in the afternoon.

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

TAP AIR PORTUGAL and WestJet are the most popular carriers operating from California to London Heathrow

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

As of September 2025, there are 799 flights per week flying from California to London Heathrow Airport. The most common day of the week flights depart is Fri, 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.

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

As of September 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.

£134 Cheap Flights from California to London Heathrow Airport in 2025/26

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Find the cheapest flights from California to London

Round-trip

One-way

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Cheap return flights

16:40 - 22:00LAX-LHR

21h 20m1 stop

19:55 - 16:00LHR-LAX

27h 05m1 stop

£368TAP AIR PORTUGAL

Find Deal

Sat, 18 Oct - Fri, 31 Oct

16:40 - 22:00LAX-LHR

21h 20m1 stop

19:55 - 16:00LHR-LAX

27h 05m1 stop

£369TAP AIR PORTUGAL

Find Deal

Fri, 24 Oct - Fri, 31 Oct

09:51 - 08:35LAX-LHR

14h 44m1 stop

15:10 - 18:30LHR-LAX

11h 20mdirect

£372Iberia

Find Deal

Sun, 8 Feb - Tue, 17 Feb

13:15 - 09:50SJC-LHR

12h 35m1 stop

06:30 - 22:58LHR-SJC

23h 28m2 stops

£375Virgin Atlantic

Find Deal

Wed, 15 Oct - Wed, 29 Oct

06:35 - 06:25SJC-LHR

16h 50m1 stop

10:45 - 21:31LHR-SJC

18h 46m1 stop

£379Virgin Atlantic

Find Deal

Wed, 29 Oct - Wed, 5 Nov

15:30 - 17:40SFO-LHR

18h 10m2 stops

06:40 - 14:35LHR-SFO

15h 55m1 stop

£383Scandinavian Airlines

Find Deal

Mon, 13 Oct - Mon, 10 Nov

12:05 - 09:35LAX-LHR

13h 30m1 stop

14:05 - 21:35LHR-LAX

15h 30m1 stop

£383Air Canada

Find Deal

Mon, 29 Sep - Wed, 15 Oct

20:45 - 16:00LAX-LHR

35h 15m2 stops

15:35 - 17:00LHR-LAX

57h 25m2 stops

£384Scandinavian Airlines

Find Deal

Wed, 7 Jan - Sat, 10 Jan

12:05 - 09:35LAX-LHR

13h 30m1 stop

14:10 - 21:28LHR-LAX

15h 18m1 stop

£402Air Canada

Find Deal

Mon, 29 Sep - Wed, 15 Oct

05:53 - 10:00SJC-LHR

20h 07m1 stop

19:05 - 10:05LHR-SJC

23h 00m2 stops

£428Iberia

Find Deal

Mon, 12 Jan - Mon, 2 Feb

Air Canada flights from California to London Heathrow Airport

Our best Air Canada deals on California to London Heathrow Airport flight tickets

Air Canada

29 Sept

LAX12:05Los Angeles

13h 30m

1 stop

LHR09:35London Heathrow

15 Oct

LHR14:05London Heathrow

15h 30m

1 stop

LAX21:35Los Angeles

£383

Find similar

Air Canada

29 Sept

LAX12:05Los Angeles

13h 30m

1 stop

LHR09:35London Heathrow

15 Oct

LHR14:10London Heathrow

15h 18m

1 stop

LAX21:28Los Angeles

£402

Find similar

Air Canada

24 Sept

SAN08:10San Diego

14h 20m

1 stop

LHR06:30London Heathrow

2 Oct

LHR09:30London Heathrow

18h 05m

1 stop

SAN19:35San Diego

£409

Find similar

American Airlines flights from California to London Heathrow Airport

Our best American Airlines deals on California to London Heathrow Airport flight tickets

American Airlines

6 Oct

SAN19:50San Diego

10h 30m

LHR14:20London Heathrow

22 Oct

LHR11:30London Heathrow

11h 20m

SAN14:50San Diego

£411

Find similar

American Airlines

21 Sept

SAN15:55San Diego

14h 30m

1 stop

LHR14:25London Heathrow

9 Oct

LHR11:30London Heathrow

11h 20m

SAN14:50San Diego

£413

Find similar

American Airlines

8 Feb

LAX12:34Los Angeles

13h 06m

1 stop

LHR09:40London Heathrow

17 Feb

LHR10:20London Heathrow

14h 45m

1 stop

LAX17:05Los Angeles

£414

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

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 18/10

16:40-22:00

1 stop21h 20m

London Heathrow

Fri 31/10

19:55-16:00

1 stop27h 05m

£368

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 24/10

16:40-22:00

1 stop21h 20m

London Heathrow

Fri 31/10

19:55-16:00

1 stop27h 05m

£369

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 8/2

09:51-08:35

1 stop14h 44m

London Heathrow

Tue 17/2

15:10-18:30

Nonstop11h 20m

£372

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Wed 15/10

13:15-09:50

1 stop12h 35m

London Heathrow

Wed 29/10

06:30-22:58

2 stops23h 28m

£375

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Wed 29/10

06:35-06:25

1 stop16h 50m

London Heathrow

Wed 5/11

10:45-21:31

1 stop18h 46m

£379

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 13/10

15:30-17:40

2 stops18h 10m

London Heathrow

Mon 10/11

06:40-14:35

1 stop15h 55m

£383

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 29/9

12:05-09:35

1 stop13h 30m

London Heathrow

Wed 15/10

14:05-21:35

1 stop15h 30m

£383

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 7/1

20:45-16:00

2 stops35h 15m

London Heathrow

Sat 10/1

15:35-17:00

2 stops57h 25m

£384

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 29/9

12:05-09:35

1 stop13h 30m

London Heathrow

Wed 15/10

14:10-21:28

1 stop15h 18m

£402

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Mon 12/1

05:53-10:00

1 stop20h 07m

London Heathrow

Mon 2/2

19:05-10:05

2 stops23h 00m

£428

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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 £483. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from California averaging around £494.

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 £521. 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 £586.

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 £536. 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 £683 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 £572 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 £534 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 11% 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	£289
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 £289. The best return flight deal from California to London Heathrow Airport found on momondo in the last 72 hours is £407.

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 September 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 787-9 Dreamliner, making up 20.69% of the total bookings. Other popular models include Boeing 777-300ER with 18.49%, Boeing 777 with 13.38%, and Airbus A380-800 with 13.20%.

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
Scandinavian Airlines	PriceFrom £300	Free Cancellation	Rating 7.4 1,484 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom £315	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom £364	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
KLM	PriceFrom £365	Free Cancellation	Rating 7.8 1,385 reviews	Search KLM flights
Aer Lingus	PriceFrom £371	Free Cancellation	Rating 7.2 1,270 reviews	Search Aer Lingus flights
British Airways	PriceFrom £382	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
TAP AIR PORTUGAL	PriceFrom £386	Free Cancellation	Rating 7.1 1,975 reviews	Search TAP AIR PORTUGAL flights
Air France	PriceFrom £388	Free Cancellation	Rating 7.4 1,469 reviews	Search Air France flights
United Airlines	PriceFrom £412	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
Finnair	PriceFrom £414	Free Cancellation	Rating 7.6 1,323 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

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.

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Cheap flights from California to London from £134

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 5/10. 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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Air Canada flights from California to London Heathrow Airport

Our best Air Canada deals on California to London Heathrow Airport flight tickets

American Airlines flights from California to London Heathrow Airport

Our best American Airlines 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

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

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 11% 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?

TAP AIR PORTUGAL and WestJet 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?

114 flights are operational daily from California to London Heathrow Airport as of September 2025. The most popular departure time for this route is 16:00, with 56% of flights per day taking off in the afternoon.

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

As of September 2025, there are 799 flights per week flying from California to London Heathrow Airport. The most common day of the week flights depart is Fri, 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