How long does it take to fly to London?

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

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

As of December 2025, there are 581 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.

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

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

What airlines fly to London?

British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to London from California according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to London. Keep in mind that there are 20 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

As of December 2025, 83 flights take off from California and land in London each day. The most common flight departure time for this route is 5:00PM, with 51% of daily flights taking off in the evening.

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

Prices for flights from California to London are refreshed on a daily basis.

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

There are 20 operators available for flights from California to London as of December 2025.

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.

$251 Cheap Flights from California to London in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from California to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:40 pm - 11:50 pm

SFO

STN

25h 10m2 stops

6:50 pm - 9:22 pm

STN

SFO

34h 32m3 stops

$596Multiple Airlines

Tue, Jan 13 - Tue, Jan 20

1:35 pm - 11:15 am

SFO

LHR

13h 40m1 stop

8:15 pm - 2:50 pm

LHR

SFO

26h 35m1 stop

$597Lufthansa

Sun, Feb 8 - Sat, Feb 14

3:05 pm - 4:10 pm

SFO

LCY

17h 05m1 stop

4:45 pm - 2:05 pm

LCY

SFO

28h 20m1 stop

$598ITA Airways

Mon, Mar 2 - Sun, Mar 8

4:35 pm - 9:50 am

SFO

LGW

33h 15m1 stop

4:35 pm - 2:30 pm

LGW

SFO

29h 55m1 stop

$598TAP AIR PORTUGAL

Mon, Dec 29 - Tue, Jan 13

12:55 pm - 10:40 am

SFO

LHR

13h 45m1 stop

8:40 am - 4:15 pm

LHR

SFO

15h 35m1 stop

$598Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

7:10 pm - 9:50 am

SFO

LGW

30h 40m1 stop

10:10 am - 2:35 pm

LGW

SFO

60h 25m2 stops

$599TAP AIR PORTUGAL

Fri, Jan 30 - Sat, Feb 14

4:45 pm - 6:30 pm

SFO

LHR

17h 45m1 stop

7:50 pm - 2:40 pm

LHR

SFO

26h 50m2 stops

$599Scandinavian Airlines

Mon, Apr 13 - Mon, Apr 27

5:40 pm - 5:40 pm

SFO

LHR

17h 00m1 stop

7:50 pm - 2:40 pm

LHR

SFO

26h 50m2 stops

$600Scandinavian Airlines

Mon, Mar 23 - Mon, Apr 13

7:40 pm - 5:50 pm

SFO

LGW

14h 10m1 stop

9:25 am - 4:10 pm

LGW

SFO

14h 45m1 stop

$600SWISS

Wed, Apr 15 - Thu, Apr 30

7:40 pm - 5:50 pm

SFO

LGW

14h 10m1 stop

9:25 am - 4:25 pm

LGW

SFO

15h 00m1 stop

$602SWISS

Sun, Apr 26 - Tue, May 5

Lufthansa flights from California to London

Our best Lufthansa deals on California to London flight tickets

Lufthansa

Feb 8

SFO1:35 pmSan Francisco

13h 40m

1 stop

LHR11:15 amLondon Heathrow

Feb 14

LHR8:15 pmLondon Heathrow

26h 35m

1 stop

SFO2:50 pmSan Francisco

$597

Find similar

Lufthansa

Mar 19

SFO2:35 pmSan Francisco

22h 00m

1 stop

LHR7:35 pmLondon Heathrow

Mar 30

LHR8:25 pmLondon Heathrow

26h 10m

1 stop

SFO2:35 pmSan Francisco

$601

Find similar

Lufthansa

Dec 30

SFO8:25 amSan Francisco

13h 30m

1 stop

LHR5:55 amLondon Heathrow

Jan 26

LHR3:50 pmLondon Heathrow

28h 50m

2 stops

SFO12:40 pmSan Francisco

$602

Find similar

Delta flights from California to London

Our best Delta deals on California to London flight tickets

Delta

Dec 29

SFO6:00 amSan Francisco

20h 00m

1 stop

LHR10:00 amLondon Heathrow

Jan 13

LHR6:30 amLondon Heathrow

13h 20m

1 stop

SFO11:50 amSan Francisco

$608

Find similar

Delta

Jan 12

SFO7:00 amSan Francisco

15h 20m

1 stop

LHR6:20 amLondon Heathrow

Jan 19

LHR11:45 amLondon Heathrow

32h 05m

1 stop

SFO11:50 amSan Francisco

$619

Find similar

Delta

Apr 21

LAX4:05 pmLos Angeles

10h 25m

LHR10:30 amLondon Heathrow

Apr 29

LHR8:40 amLondon Heathrow

14h 05m

1 stop

LAX2:45 pmLos Angeles

$630

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 1/13

2:40 pm-11:50 pm

2 stops25h 10m

London Stansted

Tue 1/20

6:50 pm-9:22 pm

3 stops34h 32m

$596

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 2/8

1:35 pm-11:15 am

1 stop13h 40m

London Heathrow

Sat 2/14

8:15 pm-2:50 pm

1 stop26h 35m

$597

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Mon 3/2

3:05 pm-4:10 pm

1 stop17h 05m

London City

Sun 3/8

4:45 pm-2:05 pm

1 stop28h 20m

$598

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 12/29

4:35 pm-9:50 am

1 stop33h 15m

London Gatwick

Tue 1/13

4:35 pm-2:30 pm

1 stop29h 55m

$598

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/15

12:55 pm-10:40 am

1 stop13h 45m

London Heathrow

Wed 4/22

8:40 am-4:15 pm

1 stop15h 35m

$598

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Fri 1/30

7:10 pm-9:50 am

1 stop30h 40m

London Gatwick

Sat 2/14

10:10 am-2:35 pm

2 stops60h 25m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 4/13

4:45 pm-6:30 pm

1 stop17h 45m

London Heathrow

Mon 4/27

7:50 pm-2:40 pm

2 stops26h 50m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 3/23

5:40 pm-5:40 pm

1 stop17h 00m

London Heathrow

Mon 4/13

7:50 pm-2:40 pm

2 stops26h 50m

$600

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 4/15

7:40 pm-5:50 pm

1 stop14h 10m

London Gatwick

Thu 4/30

9:25 am-4:10 pm

1 stop14h 45m

$600

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 4/26

7:40 pm-5:50 pm

1 stop14h 10m

London Gatwick

Tue 5/5

9:25 am-4:25 pm

1 stop15h 00m

$602

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 $592, 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 $595.

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

The cheapest day to depart from California to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $752. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $844. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from California at noon is the least expensive time of day to depart. momondo users have found prices as low as $768 when looking at flights departing at noon. Flights to London are more costly in the evening, with an average ticket price of $817. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $771 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from California for as low as $713 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 12% 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	$269
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 $269. The best round-trip flight deal from California to London found on momondo in the last 72 hours is $589.

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), London Gatwick (LGW).

Search flight deals

When did momondo last update prices for flights from California to London?
Prices for flights from California to London are refreshed on a daily basis.
How many operators does momondo search for flights from California to London?
There are 20 operators available for flights from California to London as of December 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from California to London is Boeing 777-300ER (20.23% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (20.16%), Boeing 777 (18.10%), and Airbus A380-800 (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
JetBlue	PriceFrom $151	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights
SWISS	PriceFrom $336	Free Cancellation	Rating 7.5 1,815 reviews	Search SWISS flights
Norse Atlantic UK	PriceFrom $357	Free Cancellation	Rating 7.2 51 reviews	Search Norse Atlantic UK flights
Scandinavian Airlines	PriceFrom $364	Free Cancellation	Rating 7.4 1,607 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $371	Free Cancellation	Rating 7.2 2,091 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $427	Free Cancellation	Rating 6.8 7,635 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom $469	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Aer Lingus	PriceFrom $476	Free Cancellation	Rating 7.2 1,399 reviews	Search Aer Lingus flights
Finnair	PriceFrom $486	Free Cancellation	Rating 7.6 1,338 reviews	Search Finnair flights
Alaska Airlines	PriceFrom $494	Free Cancellation	Rating 8.0 11,478 reviews	Search Alaska Airlines flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

Uxbridge

Stansted

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from California to London. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from California to London on momondo can be filtered to show those which offer 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?

Of course. momondo tracks the price of California to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London trip

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

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 1/17

Sat 1/24

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Cheap flights from California to London from $251

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 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from California to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Lufthansa flights from California to London

Our best Lufthansa deals on California to London flight tickets

Delta flights from California to London

Our best Delta deals on California to London flight tickets

momondo Fare Finder

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

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?

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

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 12% on your flight if you consider stops on a California to London flight.

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

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

What airlines fly to London?

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

As of December 2025, 83 flights take off from California and land in London each day. The most common flight departure time for this route is 5:00PM, with 51% of daily flights taking off in the evening.

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

As of December 2025, there are 581 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?

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

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

Traveling 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, organize 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