How long is the flight from California to London?

Departing from California to London will take you 18h 05m. Airlines will cover a distance of 5350 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from California to London one-way?

One-way options have recently been found by users for as low as £119 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Virgin Atlantic from £169 and United Airlines from £241 one-way.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from California to London?

The most popular flight routes from California to London are Los Angeles - London Heathrow, San Francisco - London Heathrow and Los Angeles - London Gatwick.

What are the cheapest flights from California to London?

Looking for the cheapest flight from California to London? While on average our users pay £1,356, our data indicates the cheapest price to be £229. The most popular route (Los Angeles - London Heathrow), is priced around £432.

What are the most reliable airlines from California to London?

Before booking your flight to London from California, check out the most reliable airlines to get you to your destination on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines( 90%).

What are the most popular airlines that fly from California to London?

When booking a flight from California to London, you may want to consider flying on Virgin Atlantic, British Airways or United Airlines as they are the most popular for this route.

Can I find deals for flights from California to London that include hotel bookings?

Yes. In addition to deals on California to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from California to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to London.

Can I find deals for business class flights from California to London?

Yes. Cheapflights offers flight deals from California to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£219+ Cheap Flights from California to London

Cheap flight deals from California to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Tue 8/910:20 -

1 stop36h 00m

Mon 28/907:25 -

1 stop32h 55m

Deal found 20/8£438

Fri 11/910:20 -

1 stop36h 00m

Mon 14/907:25 -

1 stop32h 55m

Deal found 20/8£443

Fri 4/1219:30 -

1 stop29h 50m

Mon 7/1206:40 -

2 stops18h 20m

Deal found 21/8£443

Tue 8/910:20 -

1 stop36h 00m

Mon 21/907:25 -

1 stop32h 55m

Deal found 17/8£443

Fri 25/910:20 -

1 stop36h 00m

Mon 28/907:25 -

1 stop32h 55m

Deal found 19/8£447

Fri 25/910:20 -

1 stop21h 30m

Mon 28/916:50 -

1 stop23h 30m

Deal found 19/8£448

Tue 6/1010:20 -

1 stop21h 30m

Thu 15/1016:50 -

1 stop23h 30m

Deal found 18/8£449

Fri 2/1010:20 -

1 stop36h 00m

Mon 12/1007:25 -

1 stop32h 55m

Deal found 21/8£450

Fri 2/1019:10 -

2 stops29h 45m

Mon 5/1006:40 -

1 stop18h 10m

Deal found 20/8£451

Thu 5/1119:30 -

2 stops33h 25m

Sun 8/1110:20 -

1 stop14h 40m

Deal found 19/8£451

Fri 2/1010:20 -

1 stop21h 30m

Mon 12/1016:50 -

1 stop23h 30m

Deal found 21/8£451

Tue 27/1010:20 -

1 stop37h 10m

Mon 2/1107:20 -

1 stop32h 00m

Deal found 16/8£451

Best flights from California to London
Discover carefully curated flight deals from California to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Fri 2/1010:20 -

2 stops30h 00m

Mon 5/1006:40 -

2 stops33h 40m

Deal found 21/8£490

Wed 28/1017:45 -

2 stops18h 05m

Mon 2/1119:50 -

2 stops27h 00m

Deal found 21/8£518

Tue 20/1016:20 -

2 stops35h 00m

Tue 10/1116:35 -

1 stop30h 10m

Deal found 18/8£558

Tue 24/1118:30 -

1 stop37h 50m

Tue 1/1217:20 -

1 stop25h 30m

Deal found 21/8£633

Tue 9/215:10 -

1 stop16h 35m

Wed 17/210:00 -

2 stops18h 00m

Deal found 18/8£647

Tue 19/118:55 -

Nonstop10h 35m

Sat 30/106:35 -

1 stop16h 40m

Deal found 21/8£669

Wed 30/1215:20 -

1 stop16h 25m

Sun 17/110:00 -

1 stop16h 21m

Deal found 21/8£670

Tue 29/911:15 -

2 stops22h 10m

Mon 12/1009:15 -

1 stop15h 15m

Deal found 20/8£671

Wed 30/911:54 -

1 stop14h 26m

Thu 8/1006:30 -

1 stop13h 20m

Deal found 20/8£692

Tue 13/1013:05 -

1 stop13h 25m

Tue 27/1010:05 -

1 stop15h 39m

Deal found 19/8£692

Tue 22/1211:54 -

1 stop16h 26m

Sat 9/114:45 -

1 stop15h 56m

Deal found 18/8£807

Tue 22/916:20 -

1 stop15h 15m

Tue 29/912:10 -

2 stops34h 25m

Deal found 17/8£614

Tue 19/107:00 -

2 stops25h 00m

Sat 30/115:35 -

2 stops33h 25m

Deal found 20/8£616

Mon 14/1212:50 -

Nonstop10h 35m

Wed 23/1220:05 -

1 stop28h 25m

Deal found 20/8£648

Wed 14/1017:45 -

Nonstop10h 20m

Thu 22/1006:30 -

1 stop13h 15m

Deal found 19/8£654

Mon 16/1118:30 -

1 stop31h 25m

Mon 23/1110:55 -

1 stop31h 55m

Deal found 19/8£662

Mon 21/912:50 -

Nonstop10h 35m

Tue 6/1010:35 -

Nonstop11h 00m

Deal found 19/8£676

Sun 15/1117:10 -

Nonstop10h 25m

Sat 21/1108:40 -

1 stop35h 05m

Deal found 21/8£691

Mon 21/916:45 -

1 stop16h 55m

Tue 6/1019:50 -

2 stops26h 50m

Deal found 17/8£629

Tue 24/1119:25 -

2 stops18h 00m

Mon 30/1114:25 -

2 stops34h 05m

Deal found 20/8£703

Wed 14/1016:35 -

1 stop33h 10m

Sat 31/1010:10 -

2 stops60h 35m

Deal found 21/8£643

Tue 29/923:15 -

Nonstop10h 20m

Sat 10/1014:30 -

Nonstop11h 15m

Deal found 21/8£712

Thu 19/1118:30 -

1 stop37h 50m

Mon 30/1110:55 -

1 stop31h 55m

Deal found 17/8£662

Mon 5/1013:05 -

1 stop13h 25m

Tue 13/1010:05 -

1 stop13h 19m

Deal found 21/8£736

Tue 3/1115:10 -

1 stop16h 35m

Mon 9/1116:45 -

1 stop28h 10m

Deal found 19/8£670

Sun 27/913:24 -

1 stop12h 16m

Tue 13/1014:50 -

1 stop14h 08m

Deal found 21/8£684

Mon 12/1008:15 -

3 stops26h 35m

Mon 26/1017:30 -

2 stops27h 35m

Deal found 21/8£702

Thu 24/916:45 -

1 stop15h 15m

Wed 30/919:50 -

2 stops50h 50m

Deal found 21/8£641

Fri 25/1217:10 -

Nonstop10h 25m

Thu 7/106:30 -

1 stop13h 15m

Deal found 18/8£714

Sat 19/923:15 -

Nonstop10h 20m

Sat 26/906:15 -

1 stop14h 40m

Deal found 21/8£733

Find flight deals from California to London

Round-trip from	£432
One-way from	£219
Popular in	June
Cheapest in	February
Average price	£642
Good round-trip deal	£710 or less
Good one-way deal	£320 or less

Scandinavian Airlines
22/1-25/1
3 total stops
49h 45m total
California to London

Search Deals

17/11
3 total stops
29h 43m total
California to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£120 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from California to London (LON).

Search Deals

Price to beat on a one-way flight from California to London (LON).

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Los AngelesLondon

LAX Los Angeles - STN London Stansted

LAXSTN

Los Angeles

Fri 2/10

10:20-00:20

2 stops30h 00m

London Stansted

Mon 5/10

06:40-08:20

2 stops33h 40m

£490

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Wed 28/10

17:45-18:50

2 stops18h 05m

London Heathrow

Mon 2/11

19:50-14:50

2 stops27h 00m

£518

San FranciscoLondon

SFO San Francisco - LGW London Gatwick

SFOLGW

San Francisco

Tue 20/10

16:20-11:20

2 stops35h 00m

London Gatwick

Tue 10/11

16:35-14:45

1 stop30h 10m

£558

San FranciscoLondon

SFO San Francisco - LGW London Gatwick

SFOLGW

San Francisco

Tue 22/9

16:20-15:35

1 stop15h 15m

London Gatwick

Tue 29/9

12:10-14:35

2 stops34h 25m

£614

Los AngelesLondon

LAX Los Angeles - LHR London Heathrow

LAXLHR

Los Angeles

Tue 19/1

07:00-16:00

2 stops25h 00m

London Heathrow

Sat 30/1

15:35-17:00

2 stops33h 25m

£616

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Mon 21/9

16:45-17:40

1 stop16h 55m

London Heathrow

Tue 6/10

19:50-14:40

2 stops26h 50m

£629

Los AngelesLondon

LAX Los Angeles - STN London Stansted

LAXSTN

Los Angeles

Tue 24/11

18:30-16:20

1 stop37h 50m

London Stansted

Tue 1/12

17:20-10:50

1 stop25h 30m

£633

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Thu 24/9

16:45-16:00

1 stop15h 15m

London Heathrow

Wed 30/9

19:50-14:40

2 stops50h 50m

£641

San FranciscoLondon

SFO San Francisco - LGW London Gatwick

SFOLGW

San Francisco

Wed 14/10

16:35-09:45

1 stop33h 10m

London Gatwick

Sat 31/10

10:10-15:45

2 stops60h 35m

£643

San FranciscoLondon

SFO San Francisco - LGW London Gatwick

SFOLGW

San Francisco

Tue 9/2

15:10-15:45

1 stop16h 35m

London Gatwick

Wed 17/2

10:00-20:00

2 stops18h 00m

£647

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California with our price prediction graph.

LAX-STN

SFO-LHR

SFO-LGW

LAX-LHR

LAX-LGW

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

USCA-LON

LAX-STN

SFO-LHR

SFO-LGW

LAX-LHR

What is the cheapest month to book a flight from California to London?

Currently, February is the cheapest month in which you can book a flight from California to London (average of £488). Flying from California to London in June is currently the most expensive (average of £953). 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 LON?

It’s typically best to fly out from California to London in the morning. Doing so could potentially save you 14% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from California to London

The most flights from USCA to LON are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

How much does it cost for a return flight from California to London?

Airfare is below average for this route at the moment.

California to London flights typically cost between £434 and £714 in January.
The cheapest return price found within the last 5 days was £432 on Scandinavian Airlines (22 Jan–25 Jan).

How far ahead should I book a flight from California to London?

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from California to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from California to London?

Travellers seeking maximum savings on their California to London flight should consider departing on Thursday afternoons 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.

Related info for your journey

How long is the flight from California to London?
Departing from California to London will take you 18h 05m. Airlines will cover a distance of 5350 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from California to London one-way?
One-way options have recently been found by users for as low as £119 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Virgin Atlantic from £169 and United Airlines from £241 one-way.
What are the most popular routes from California to London?
The most popular flight routes from California to London are Los Angeles - London Heathrow, San Francisco - London Heathrow and Los Angeles - London Gatwick.
What are the most reliable airlines from California to London?
Before booking your flight to London from California, check out the most reliable airlines to get you to your destination on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines( 90%).
What are the cheapest flights from California to London?
Looking for the cheapest flight from California to London? While on average our users pay £1,356, our data indicates the cheapest price to be £229. The most popular route (Los Angeles - London Heathrow), is priced around £432.
Can I find deals for flights from California to London that include hotel bookings?
Yes. In addition to deals on California to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from California to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to London.
Can I find deals for business class flights from California to London?
Yes. Cheapflights offers flight deals from California to London 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?
Currently, February is the cheapest month in which you can book a flight from California to London (average of £488). Flying from California to London in June is currently the most expensive (average of £953). 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.

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Top 10 airlines flying from California to London

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£233	Average£471	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Finnair	Cheapest£316	Average£788	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£389	Average£764	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£390	Average£778	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£398	Average£596	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£447	Average£787	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£453	Average£732	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Delta	Cheapest£467	Average£1,015	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air France	Cheapest£540	Average£971	FlexibilityNo cancel fee	On-time77%	Search Air France flights
American Airlines	Cheapest£553	Average£877	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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How does Cheapflights help users find flights from California to London?

Deals for California to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from California to London?

Cheapflights helps you find that perfect flight to London from California by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from California to London with no change fees?

Yes, we can. To see specific flights from California to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from California to London become cheaper?

Yes, Cheapflights offers price alerts on California to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from California to London from £219

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 17/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from California to London

Cheapest flights from California to LondonExplore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Best flights from California to LondonDiscover carefully curated flight deals from California to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Discover carefully curated flight deals from California to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Direct flights from California to LondonExplore direct flight options from California to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Explore direct flight options from California to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Last-minute flights from California to LondonDiscover last-minute flight deals from California to London. Data last updated 22 August 2026 and is based on user searches.

Discover last-minute flight deals from California to London. Data last updated 22 August 2026 and is based on user searches.

One-way flights from California to LondonSearch for one-way flight options from California to London. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Search for one-way flight options from California to London. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Find flight deals from California to London

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One-way from

Popular in

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

Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from California to London?

What is the cheapest time of day to fly from CA to LON?

Find hourly flight availability from California to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 August 2026.

It’s typically best to fly out from California to London in the morning. Doing so could potentially save you 14% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from California to London

Explore weekly flight availability from California to London. 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 22 August 2026.

The most flights from USCA to LON are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

How much does it cost for a return flight from California to London?

Airfare is below average for this route at the moment.

California to London flights typically cost between £434 and £714 in January.The cheapest return price found within the last 5 days was £432 on Scandinavian Airlines (22 Jan–25 Jan).

How far ahead should I book a flight from California to London?

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from California to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from California to London?

Use this chart to determine the cheapest time to fly return from California to London. Price data was last updated on 15 August 2026.

Travellers seeking maximum savings on their California to London flight should consider departing on Thursday afternoons 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.

Related info for your journey

How long is the flight from California to London?

What are the cheapest airlines to fly from California to London one-way?

What are the most popular routes from California to London?

What are the most reliable airlines from California to London?

What are the cheapest flights from California to London?

Can I find deals for flights from California to London that include hotel bookings?

How can I find direct flights from California to London?

Can I find deals for business class flights from California to London?

What is the cheapest month to book a flight from California to London?

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How does Cheapflights help users find flights from California to London?

Why should you use Cheapflights to find cheap flight tickets from California to London?

Can Cheapflights find flights from California to London with no change fees?

Can Cheapflights notify me if prices for flights from California to London become cheaper?

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Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Best flights from California to London
Discover carefully curated flight deals from California to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Direct flights from California to London
Explore direct flight options from California to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Last-minute flights from California to London
Discover last-minute flight deals from California to London. Data last updated 22 August 2026 and is based on user searches.

One-way flights from California to London
Search for one-way flight options from California to London. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

California to London flights typically cost between £434 and £714 in January.
The cheapest return price found within the last 5 days was £432 on Scandinavian Airlines (22 Jan–25 Jan).