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

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

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

As of December 2025, there are 636 flights per week flying from California to London. 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?

Flight times from California to London vary, but if you’re flying out of San Francisco and flying into London Heathrow Airport (one of the most popular routes), then the duration is 10h 10m on average. Another popular route from California to London is flying from Los Angeles to London Heathrow Airport, which will take roughly 10h 20m. Keep in mind that layovers or delays could extend your travel time.

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

90 flights are operational daily from California to London 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.

Which airlines fly to London?

Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to London 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. Keep in mind that there are 13 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from California to London refresh daily.

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

As of December 2025, there are 13 operators available to choose from for flights from California to London.

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

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.

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

The travel and health documents required for your trip to London 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. 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 in 2025/26

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14:40 - 23:50

SFO

STN

25h 10m2 stops

18:50 - 21:22

STN

SFO

34h 32m3 stops

£446Multiple Airlines

Tue, 13 Jan - Tue, 20 Jan

16:10 - 13:30

SFO

LHR

13h 20m1 stop

08:00 - 19:55

LHR

SFO

19h 55m1 stop

£446Multiple Airlines

Tue, 30 Dec - Fri, 9 Jan

16:45 - 16:00

SFO

LHR

15h 15m1 stop

18:40 - 14:40

LHR

SFO

28h 00m1 stop

£446Scandinavian Airlines

Tue, 14 Apr - Wed, 22 Apr

16:40 - 16:00

SFO

LHR

15h 20m1 stop

10:35 - 14:35

LHR

SFO

36h 00m2 stops

£447Scandinavian Airlines

Sun, 11 Jan - Sat, 17 Jan

15:05 - 16:10

SFO

LCY

17h 05m1 stop

16:45 - 14:05

LCY

SFO

28h 20m1 stop

£447ITA Airways

Mon, 2 Mar - Sun, 8 Mar

16:35 - 09:50

SFO

LGW

33h 15m1 stop

16:35 - 14:30

LGW

SFO

29h 55m1 stop

£447TAP AIR PORTUGAL

Mon, 29 Dec - Tue, 13 Jan

19:10 - 09:50

SFO

LGW

30h 40m1 stop

10:10 - 14:35

LGW

SFO

60h 25m2 stops

£448TAP AIR PORTUGAL

Fri, 30 Jan - Sat, 14 Feb

08:25 - 22:25

SFO

STN

30h 00m2 stops

06:15 - 21:39

STN

SFO

23h 24m2 stops

£448Multiple Airlines

Tue, 3 Feb - Sun, 8 Feb

19:40 - 17:50

SFO

LGW

14h 10m1 stop

09:25 - 16:10

LGW

SFO

14h 45m1 stop

£449SWISS

Wed, 15 Apr - Thu, 30 Apr

19:40 - 17:50

SFO

LGW

14h 10m1 stop

09:25 - 16:25

LGW

SFO

15h 00m1 stop

£450SWISS

Sun, 26 Apr - Tue, 5 May

Lufthansa flights from California to London

Our best Lufthansa deals on California to London flight tickets

Lufthansa

8 Feb

SFO13:35San Francisco

13h 40m

1 stop

LHR11:15London Heathrow

14 Feb

LHR20:15London Heathrow

26h 35m

1 stop

SFO14:50San Francisco

£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

Air Canada flights from California to London

Our best Air Canada deals on California to London flight tickets

Air Canada

30 Jan

LAS06:15Las Vegas Harry Reid Intl

21h 35m

1 stop

LHR11:50London Heathrow

6 Feb

LHR14:30London Heathrow

15h 57m

1 stop

LAS22:27Las Vegas Harry Reid Intl

£458

Find similar

Air Canada

29 Dec

SFO14:30San Francisco

34h 00m

1 stop

LHR08:30London Heathrow

13 Jan

LHR14:30London Heathrow

14h 04m

1 stop

SFO20:34San Francisco

£459

Find similar

Air Canada

16 Jan

SFO13:20San Francisco

14h 30m

1 stop

LHR11:50London Heathrow

23 Jan

LHR06:50London Heathrow

22h 32m

2 stops

SFO21:22San Francisco

£461

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 13/1

14:40-23:50

2 stops25h 10m

London Stansted

Tue 20/1

18:50-21:22

3 stops34h 32m

£446

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 30/12

16:10-13:30

1 stop13h 20m

London Heathrow

Fri 9/1

08:00-19:55

1 stop19h 55m

£446

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 14/4

16:45-16:00

1 stop15h 15m

London Heathrow

Wed 22/4

18:40-14:40

1 stop28h 00m

£446

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 11/1

16:40-16:00

1 stop15h 20m

London Heathrow

Sat 17/1

10:35-14:35

2 stops36h 00m

£447

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Mon 2/3

15:05-16:10

1 stop17h 05m

London City

Sun 8/3

16:45-14:05

1 stop28h 20m

£447

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 29/12

16:35-09:50

1 stop33h 15m

London Gatwick

Tue 13/1

16:35-14:30

1 stop29h 55m

£447

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Fri 30/1

19:10-09:50

1 stop30h 40m

London Gatwick

Sat 14/2

10:10-14:35

2 stops60h 25m

£448

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 3/2

08:25-22:25

2 stops30h 00m

London Stansted

Sun 8/2

06:15-21:39

2 stops23h 24m

£448

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 15/4

19:40-17:50

1 stop14h 10m

London Gatwick

Thu 30/4

09:25-16:10

1 stop14h 45m

£449

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 26/4

19:40-17:50

1 stop14h 10m

London Gatwick

Tue 5/5

09:25-16:25

1 stop15h 00m

£450

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How to get the cheapest flight ticket from California to London

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?

The cheapest month to fly to London from California is in September. Flight prices, which tend to average around £443, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from California averaging around £445.

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

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £490. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from California to London for around £587.

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

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £514. Flights at midday are often more expensive, with an average ticket price of £645.

What is the cheapest California to London flight route?

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

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

You are more likely to see cheaper flights to London from California when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from California for as low as £533 on momondo.

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

There are 4 cabin classes available to choose from on California to London 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 flights?

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

Cheap California to London flight deals and tips

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

Best price found	£191
Fastest flight time	9h 50m
Direct flights	Every day
Airports in London	6 airports

The best one-way flight to London from California in the past 72 hours is £191. The best return flight deal from California to London found on momondo in the last 72 hours is £466.

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

Direct flights go from California to London every day.

There are 6 airports in London. From California there are direct flights to London Heathrow (LHR).

Search flight deals

When did momondo last update prices for flights from California to London?
Prices for flights from California to London refresh daily.
How many operators does momondo search for flights from California to London?
As of December 2025, there are 13 operators available to choose from for flights from California to London.
How old do you have to be to fly from California to London?
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.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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. 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?
momondo data reveals that the most frequently booked plane model on the route from California to London is Boeing 777-300ER, representing 20.23% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 20.16%, Boeing 777 at 18.10%, and Airbus A380-800 at 16.44%.

Best airlines flying from California to London

Compare and see reviews for airlines that fly from California to London 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

Eastbourne

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Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

Stansted

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for California to London flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from California. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for California to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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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Lufthansa flights from California to London

Our best Lufthansa deals on California to London flight tickets

Air Canada flights from California to London

Our best Air Canada deals on California to London flight tickets

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See travel insights to London from

How to get the cheapest flight ticket from California to London

What is the cheapest month to fly to London?

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

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £490. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from California to London for around £587.

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

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £514. Flights at midday are often more expensive, with an average ticket price of £645.

What is the cheapest California to London flight route?

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

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

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

There are 4 cabin classes available to choose from on California to London 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 flights?

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

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

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

Which airlines fly to London?

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

90 flights are operational daily from California to London 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 on average per week?

As of December 2025, there are 636 flights per week flying from California to London. 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?

Cheap California to London flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in London

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

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

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

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

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

Best airlines flying from California to London

Compare and see reviews for airlines that fly from California to London 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 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 the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London