How long is the flight from California to London?

Departing from California to London will take you 15h 20m. Airlines will cover a distance of 5407 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 £172 on Virgin Atlantic. Other airlines that offer cheap prices include JetBlue from £223 and Alaska 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 Los Angeles - London Heathrow, San Francisco - London Heathrow and Los Angeles 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 £873, our data indicates the cheapest price to be £272. The most popular route (Los Angeles Los Angeles - London Heathrow), is priced around £358.

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: KLM (87%), SAUDIA (87%), Air France( 87%).

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.

£235+ 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 September 2026.

Mon 2/1112:01 -

2 stops25h 39m

Wed 11/1121:05 -

3 stops30h 23m

Deal found 18/9£412

Thu 5/1112:01 -

2 stops22h 29m

Tue 10/1106:40 -

3 stops35h 00m

Deal found 20/9£437

Mon 9/1112:01 -

3 stops22h 49m

Fri 13/1106:40 -

2 stops20h 48m

Deal found 19/9£439

Mon 9/1112:01 -

2 stops19h 59m

Wed 18/1118:40 -

2 stops32h 48m

Deal found 20/9£448

Sun 8/1112:01 -

3 stops22h 49m

Thu 12/1106:40 -

2 stops20h 48m

Deal found 19/9£449

Mon 2/1112:01 -

3 stops25h 19m

Mon 9/1106:40 -

2 stops20h 48m

Deal found 18/9£472

Tue 20/1016:20 -

2 stops20h 05m

Tue 27/1016:35 -

1 stop30h 10m

Deal found 22/9£549

Tue 1/1208:25 -

2 stops22h 15m

Sun 6/1221:35 -

2 stops26h 55m

Deal found 21/9£549

Sat 3/1023:55 -

1 stop13h 25m

Wed 14/1015:05 -

1 stop14h 43m

Deal found 22/9£549

Wed 11/1123:52 -

3 stops27h 03m

Wed 18/1111:55 -

2 stops20h 25m

Deal found 21/9£550

Sat 3/1023:39 -

1 stop22h 51m

Tue 13/1014:05 -

1 stop15h 43m

Deal found 21/9£550

Mon 12/1011:35 -

1 stop14h 00m

Fri 23/1010:15 -

2 stops16h 16m

Deal found 21/9£551

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 September 2026.

Tue 10/1106:00 -

1 stop22h 20m

Tue 24/1114:45 -

1 stop16h 46m

Deal found 19/9£556

Tue 17/1107:05 -

1 stop15h 20m

Wed 13/110:45 -

1 stop13h 27m

Deal found 20/9£559

Wed 30/1212:50 -

Nonstop10h 35m

Fri 8/106:35 -

1 stop21h 00m

Deal found 20/9£560

Mon 23/1115:10 -

1 stop16h 35m

Mon 7/1216:45 -

1 stop28h 10m

Deal found 19/9£564

Fri 4/1220:25 -

1 stop13h 55m

Sun 13/1208:40 -

1 stop18h 00m

Deal found 19/9£571

Sun 24/116:40 -

Nonstop10h 15m

Sat 6/206:30 -

1 stop13h 15m

Deal found 20/9£586

Sat 13/316:35 -

1 stop33h 15m

Sun 28/321:15 -

2 stops49h 20m

Deal found 19/9£619

Mon 19/1016:45 -

2 stops16h 15m

Sat 24/1015:35 -

2 stops32h 15m

Deal found 21/9£646

Tue 16/218:35 -

1 stop31h 20m

Tue 23/217:20 -

1 stop31h 10m

Deal found 17/9£658

Wed 11/1112:15 -

2 stops20h 05m

Wed 25/1114:25 -

2 stops34h 10m

Deal found 22/9£667

Sat 3/1022:39 -

1 stop14h 06m

Fri 16/1008:15 -

1 stop21h 59m

Deal found 21/9£706

Wed 14/1020:10 -

1 stop13h 10m

Tue 20/1009:10 -

1 stop17h 15m

Deal found 20/9£817

Tue 17/1118:45 -

1 stop14h 55m

Wed 2/1209:50 -

1 stop14h 15m

Deal found 21/9£935

Sat 3/1015:15 -

2 stops21h 50m

Tue 6/1016:30 -

2 stops28h 45m

Deal found 22/9£942

Mon 2/1106:00 -

1 stop22h 20m

Fri 13/1114:45 -

1 stop16h 21m

Deal found 21/9£556

Mon 23/1112:50 -

Nonstop10h 35m

Mon 7/1209:00 -

1 stop15h 30m

Deal found 19/9£567

Wed 11/1117:10 -

Nonstop10h 25m

Mon 23/1106:20 -

1 stop14h 40m

Deal found 21/9£577

Thu 10/1212:50 -

Nonstop10h 35m

Mon 14/1220:05 -

1 stop28h 25m

Deal found 18/9£587

Fri 6/1105:55 -

2 stops19h 05m

Fri 13/1110:00 -

2 stops22h 16m

Deal found 21/9£602

Sat 31/1012:40 -

2 stops20h 45m

Tue 17/1117:25 -

2 stops55h 51m

Deal found 21/9£1,241

Sat 7/1117:10 -

2 stops19h 30m

Fri 13/1116:40 -

1 stop30h 35m

Deal found 17/9£628

Sat 7/1121:00 -

1 stop16h 20m

Sat 14/1113:45 -

1 stop34h 50m

Deal found 20/9£581

Fri 9/1017:40 -

1 stop13h 55m

Tue 13/1006:30 -

1 stop13h 20m

Deal found 17/9£581

Fri 23/1015:40 -

Nonstop10h 30m

Mon 26/1020:15 -

1 stop27h 00m

Deal found 20/9£600

Wed 30/1206:20 -

2 stops17h 50m

Fri 8/107:45 -

2 stops19h 49m

Deal found 20/9£611

Fri 6/1119:30 -

1 stop30h 25m

Fri 13/1117:20 -

1 stop31h 15m

Deal found 21/9£674

Wed 28/1017:35 -

1 stop33h 15m

Mon 2/1121:35 -

2 stops49h 10m

Deal found 19/9£630

Wed 14/1008:15 -

1 stop14h 15m

Mon 19/1013:05 -

Nonstop11h 20m

Deal found 17/9£586

Wed 14/1007:30 -

2 stops27h 30m

Tue 20/1018:15 -

2 stops26h 55m

Deal found 20/9£614

Thu 26/1112:45 -

1 stop19h 35m

Thu 3/1217:20 -

1 stop25h 30m

Deal found 19/9£681

Find flight deals from California to London

Round-trip from	£412
One-way from	£235
Popular in	June
Cheapest in	February
Average price	£683
Good round-trip deal	£681 or less
Good one-way deal	£337 or less

2/11-11/11
5 total stops
56h 02m total
California to London

Search Deals

JetBlue
5/10-31/12
1 total stop
14h 03m total
California to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£102 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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 Los Angeles - LTN London Luton

LAXLTN

Los Angeles Los Angeles

Tue 1/12

17:10-17:35

3 stops40h 25m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£265

Los AngelesLondon

LAX Los Angeles Los Angeles - LTN London Luton

LAXLTN

Los Angeles Los Angeles

Wed 21/10

16:24-23:25

3 stops47h 01m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£265

Los AngelesLondon

LAX Los Angeles Los Angeles - LTN London Luton

LAXLTN

Los Angeles Los Angeles

Tue 10/11

17:10-13:45

3 stops36h 35m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

Los AngelesLondon

LAX Los Angeles Los Angeles - LTN London Luton

LAXLTN

Los Angeles Los Angeles

Wed 4/11

14:03-22:00

3 stops47h 57m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

Los AngelesLondon

LAX Los Angeles Los Angeles - STN London Stansted

LAXSTN

Los Angeles Los Angeles

Sun 11/10

16:40-15:00

2 stops38h 20m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

Los AngelesLondon

LAX Los Angeles Los Angeles - LTN London Luton

LAXLTN

Los Angeles Los Angeles

Mon 19/10

19:35-23:55

2 stops20h 20m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£272

Los AngelesLondon

LAX Los Angeles Los Angeles - LGW London Gatwick

LAXLGW

Los Angeles Los Angeles

Thu 28/1

11:00-15:45

2 stops20h 45m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£288

Los AngelesLondon

LAX Los Angeles Los Angeles - LGW London Gatwick

LAXLGW

Los Angeles Los Angeles

Sat 9/1

19:30-07:20

2 stops27h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£306

Los AngelesLondon

LAX Los Angeles Los Angeles - LCY London City

LAXLCY

Los Angeles Los Angeles

Sat 31/10

16:20-18:55

2 stops19h 35m

London City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£315

Los AngelesLondon

LAX Los Angeles Los Angeles - LGW London Gatwick

LAXLGW

Los Angeles Los Angeles

Mon 12/10

20:50-12:15

1 stop31h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£320

Flights are sorted by cheapest return flights first.

Deals found on 19/9

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.

SFO-LHR

LAX-LHR

ONT-LHR

SFO-LGW

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

SFO-LHR

LAX-LHR

ONT-LHR

SFO-LGW

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 £502). Flying from California to London in June is currently the most expensive (average of £975). 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 19% on the flight price compared to flying at midday, 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 Friday, which is when the least amount of flights are scheduled (48 on average).

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

Airfare is typical for this route at the moment.

California to London flights typically cost between £491 and £774 in October.
The cheapest return price found within the last 5 days was £563 on ITA Airways (18 Oct–23 Nov).

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

Booking 73 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. Saturday evenings 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 15h 20m. Airlines will cover a distance of 5407 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 £172 on Virgin Atlantic. Other airlines that offer cheap prices include JetBlue from £223 and Alaska 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 Los Angeles - London Heathrow, San Francisco - London Heathrow and Los Angeles 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: KLM (87%), SAUDIA (87%), Air France( 87%).
What are the cheapest flights from California to London?
Looking for the cheapest flight from California to London? While on average our users pay £873, our data indicates the cheapest price to be £272. The most popular route (Los Angeles Los Angeles - London Heathrow), is priced around £358.
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 £502). Flying from California to London in June is currently the most expensive (average of £975). 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£238	Average£475	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Finnair	Cheapest£322	Average£803	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£397	Average£820	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£397	Average£841	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
KLM	Cheapest£440	Average£806	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£441	Average£638	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£462	Average£737	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Delta	Cheapest£476	Average£1,036	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest£564	Average£902	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air France	Cheapest£582	Average£990	FlexibilityNo cancel fee	On-time77%	Search Air France 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 £235

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. 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 September 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 September 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 September 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 September 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 September 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 September 2026.

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

Discover last-minute flight deals from California to London. Data last updated 22 September 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 September 2026.

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

Find flight deals from California to London

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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 September 2026.

It’s typically best to fly out from California to London in the morning. Doing so could potentially save you 19% on the flight price compared to flying at midday, 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 September 2026.

The most flights from USCA to LON are scheduled on a Monday (57 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (48 on average).

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

Airfare is typical for this route at the moment.

California to London flights typically cost between £491 and £774 in October.The cheapest return price found within the last 5 days was £563 on ITA Airways (18 Oct–23 Nov).

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

Booking 73 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 19 September 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. Saturday evenings 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 September 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 September 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 September 2026.

Last-minute flights from California to London
Discover last-minute flight deals from California to London. Data last updated 22 September 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 September 2026.

California to London flights typically cost between £491 and £774 in October.
The cheapest return price found within the last 5 days was £563 on ITA Airways (18 Oct–23 Nov).