How long is the flight from California to London?

Departing from California to London will take you 14h 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 £172 on Virgin Atlantic. Other airlines that offer cheap prices include JetBlue from £221 and Iberia from £229 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 San Francisco - London Heathrow, Los Angeles - London Heathrow and San Francisco - 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 £947, our data indicates the cheapest price to be £242. The most popular route (San Francisco - London Heathrow), is priced around £475.

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 (91%), SAUDIA (91%), Air France( 91%).

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.

£202+ 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 30 October 2026.

Sat 5/1216:35 -

1 stop22h 05m

Tue 15/1218:30 -

1 stop28h 15m

Deal found 28/10£548

Mon 7/1216:35 -

1 stop15h 10m

Sun 13/1221:25 -

2 stops25h 00m

Deal found 30/10£549

Sat 5/1216:35 -

1 stop18h 20m

Sat 12/1206:00 -

1 stop16h 45m

Deal found 28/10£549

Sat 5/1216:35 -

1 stop33h 15m

Tue 15/1216:35 -

1 stop30h 10m

Deal found 29/10£550

Sat 28/1116:45 -

2 stops44h 35m

Tue 1/1219:30 -

1 stop27h 20m

Deal found 27/10£550

Wed 11/1116:35 -

1 stop18h 30m

Wed 25/1109:50 -

2 stops31h 54m

Deal found 30/10£552

Fri 13/1116:45 -

1 stop17h 45m

Wed 18/1106:40 -

1 stop16h 10m

Deal found 26/10£553

Tue 1/1216:45 -

1 stop17h 45m

Tue 8/1219:30 -

1 stop27h 20m

Deal found 27/10£554

Sat 5/1216:35 -

2 stops22h 35m

Tue 15/1213:00 -

2 stops33h 45m

Deal found 29/10£554

Wed 9/1216:35 -

1 stop16h 55m

Tue 15/1208:15 -

1 stop38h 30m

Deal found 29/10£554

Mon 30/1121:20 -

2 stops33h 50m

Mon 7/1216:10 -

2 stops35h 58m

Deal found 28/10£555

Thu 26/1116:45 -

1 stop17h 45m

Fri 11/1219:30 -

1 stop27h 20m

Deal found 29/10£556

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 30 October 2026.

Fri 19/219:15 -

1 stop30h 35m

Mon 1/321:35 -

2 stops49h 10m

Deal found 26/10£567

Tue 2/308:05 -

2 stops39h 05m

Fri 5/306:35 -

2 stops21h 14m

Deal found 30/10£578

Mon 7/1216:45 -

2 stops20h 50m

Mon 14/1206:40 -

1 stop16h 10m

Deal found 26/10£581

Tue 5/123:35 -

1 stop14h 05m

Tue 4/508:15 -

1 stop23h 42m

Deal found 29/10£628

Tue 17/1112:45 -

1 stop19h 45m

Tue 1/1217:25 -

1 stop31h 10m

Deal found 29/10£648

Tue 20/415:05 -

1 stop16h 55m

Tue 27/409:55 -

2 stops21h 16m

Deal found 28/10£667

Tue 30/309:45 -

1 stop16h 15m

Wed 14/406:30 -

2 stops18h 07m

Deal found 27/10£671

Tue 2/314:30 -

1 stop13h 50m

Fri 5/314:45 -

1 stop15h 25m

Deal found 28/10£672

Wed 17/220:40 -

Nonstop10h 35m

Wed 24/210:05 -

Nonstop11h 20m

Deal found 28/10£675

Fri 16/412:55 -

2 stops16h 10m

Mon 26/420:55 -

2 stops27h 42m

Deal found 26/10£704

Tue 17/1116:40 -

Nonstop10h 35m

Tue 24/1109:00 -

1 stop15h 30m

Deal found 26/10£729

Wed 17/216:35 -

1 stop33h 15m

Wed 24/209:35 -

2 stops62h 30m

Deal found 28/10£579

Mon 28/1216:45 -

1 stop16h 55m

Wed 27/110:20 -

1 stop36h 30m

Deal found 28/10£602

Sun 28/216:40 -

Nonstop10h 35m

Wed 10/309:00 -

1 stop15h 30m

Deal found 28/10£649

Sat 16/116:35 -

1 stop33h 15m

Sat 23/110:10 -

2 stops60h 15m

Deal found 30/10£593

Sun 25/415:15 -

1 stop16h 45m

Tue 27/417:00 -

2 stops25h 18m

Deal found 26/10£668

Tue 2/319:30 -

1 stop36h 30m

Sat 6/306:40 -

1 stop18h 20m

Deal found 26/10£607

Sat 6/212:45 -

1 stop19h 35m

Tue 16/217:20 -

1 stop31h 15m

Deal found 29/10£669

Wed 24/208:14 -

1 stop20h 06m

Wed 3/314:45 -

1 stop15h 25m

Deal found 27/10£679

Mon 18/106:25 -

1 stop21h 10m

Wed 3/208:40 -

2 stops19h 45m

Deal found 30/10£725

Tue 30/306:20 -

1 stop20h 50m

Wed 14/408:45 -

2 stops19h 04m

Deal found 26/10£666

Wed 27/116:19 -

1 stop13h 16m

Wed 10/211:15 -

1 stop15h 36m

Deal found 30/10£740

Tue 5/107:00 -

2 stops19h 50m

Tue 19/112:15 -

2 stops17h 30m

Deal found 28/10£741

Sat 9/116:35 -

1 stop33h 15m

Sat 16/110:10 -

2 stops60h 15m

Deal found 29/10£616

Tue 12/107:00 -

2 stops27h 30m

Tue 19/117:30 -

2 stops29h 20m

Deal found 30/10£622

Tue 12/112:45 -

1 stop37h 10m

Tue 2/217:20 -

1 stop25h 30m

Deal found 29/10£713

Thu 12/1106:15 -

1 stop16h 50m

Thu 26/1110:55 -

1 stop15h 24m

Deal found 28/10£795

Wed 24/205:00 -

2 stops18h 10m

Wed 3/306:35 -

2 stops19h 00m

Deal found 26/10£667

Mon 28/1221:55 -

1 stop30h 25m

Tue 12/114:45 -

1 stop15h 30m

Deal found 25/10£738

Mon 28/1206:15 -

1 stop16h 50m

Tue 12/111:30 -

2 stops18h 03m

Deal found 25/10£746

Find flight deals from California to London

Round-trip from	£548
One-way from	£202
Popular in	June
Cheapest in	February
Average price	£679
Good round-trip deal	£703 or less
Good one-way deal	£246 or less

TAP AIR PORTUGAL
5/12-15/12
2 total stops
50h 20m total
California to London

Search Deals

23/1-31/12
2 total stops
37h 41m total
California to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£92 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 October 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

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Mon 11/1

21:45-21:40

1 stop15h 55m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£216

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 25/11

20:55-21:40

1 stop16h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£223

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Thu 3/12

21:40-20:55

1 stop15h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£223

OntarioLondon

ONT Ontario - LHR London Heathrow

ONTLHR

Ontario

Sun 25/4

08:00-07:25

1 stop15h 25m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

FresnoLondon

FAT Fresno Airterminal - LHR London Heathrow

FATLHR

Fresno Airterminal

Wed 10/3

06:00-10:00

1 stop20h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

FresnoLondon

FAT Fresno Airterminal - LHR London Heathrow

FATLHR

Fresno Airterminal

Wed 10/3

14:30-12:20

1 stop13h 50m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

FresnoLondon

FAT Fresno Airterminal - LHR London Heathrow

FATLHR

Fresno Airterminal

Wed 10/3

05:30-07:55

2 stops18h 25m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

FresnoLondon

FAT Fresno Airterminal - LHR London Heathrow

FATLHR

Fresno Airterminal

Wed 10/3

08:00-11:20

3 stops19h 20m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£258

SacramentoLondon

SMF Sacramento Intl - LHR London Heathrow

SMFLHR

Sacramento Intl

Wed 11/11

11:59-14:20

3 stops42h 21m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£261

Los AngelesLondon

LAX Los Angeles - STN London Stansted

LAXSTN

Los Angeles

Sun 21/2

09:20-07:45

2 stops38h 25m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

Flights are sorted by cheapest return flights first.

Deals found on 26/10

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-LGW

FAT-LHR

SFO-LHR

LAX-LGW

LAX-LHR

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-LGW

FAT-LHR

SFO-LHR

LAX-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 £516). Flying from California to London in June is currently the most expensive (average of £979). 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 24% on the flight price compared to flying in the evening, which is usually more expensive.

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 £494 and £843 in November.
The cheapest return price found within the last 5 days was £568 on Multiple Airlines (23 Nov–26 Nov).

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

Booking 69 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. Friday 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 14h 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 £172 on Virgin Atlantic. Other airlines that offer cheap prices include JetBlue from £221 and Iberia from £229 one-way.
What are the most popular routes from California to London?
The most popular flight routes from California to London are San Francisco - London Heathrow, Los Angeles - London Heathrow and San Francisco - 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 (91%), SAUDIA (91%), Air France( 91%).
What are the cheapest flights from California to London?
Looking for the cheapest flight from California to London? While on average our users pay £947, our data indicates the cheapest price to be £242. The most popular route (San Francisco - London Heathrow), is priced around £475.
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 £516). Flying from California to London in June is currently the most expensive (average of £979). 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£237	Average£480	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Finnair	Cheapest£322	Average£808	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Virgin Atlantic	Cheapest£452	Average£640	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£455	Average£806	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£462	Average£796	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£473	Average£877	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest£563	Average£901	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air France	Cheapest£582	Average£989	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Delta	Cheapest£586	Average£1,053	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Iberia	Cheapest£644	Average£805	FlexibilityNo cancel fee	On-time77%	Search Iberia 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 £202

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. 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 30 October 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 30 October 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 30 October 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 30 October 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 30 October 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 30 October 2026.

Last-minute flights from California to LondonDiscover last-minute flight deals from California to London. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from California to London. Data last updated 30 October 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 30 October 2026.

Search for one-way flight options from California to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from California to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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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 30 October 2026.

It’s typically best to fly out from California to London in the morning. Doing so could potentially save you 24% on the flight price compared to flying in the evening, which is usually more expensive.

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 £494 and £843 in November.The cheapest return price found within the last 5 days was £568 on Multiple Airlines (23 Nov–26 Nov).

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

Booking 69 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. Friday 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?

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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 30 October 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 30 October 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 30 October 2026.

Last-minute flights from California to London
Discover last-minute flight deals from California to London. Data last updated 30 October 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 30 October 2026.

California to London flights typically cost between £494 and £843 in November.
The cheapest return price found within the last 5 days was £568 on Multiple Airlines (23 Nov–26 Nov).