How long is the flight from California to London?

Departing from California to London will take you 15h 15m. Airlines will cover a distance of 5374 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 £120 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from £161 and Virgin Atlantic from £230 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 £1,429, our data indicates the cheapest price to be £240. The most popular route (Los Angeles - London Heathrow), is priced around £441.

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 (90%), Delta (90%), Virgin Atlantic( 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.

£121+ 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 3 September 2026.

Sun 29/1112:30 -

1 stop15h 20m

Sun 6/1207:50 -

1 stop18h 50m

Deal found 31/8£553

Tue 29/910:20 -

1 stop21h 30m

Sat 3/1016:50 -

1 stop23h 30m

Deal found 31/8£553

Sun 6/1209:20 -

1 stop21h 50m

Thu 10/1216:10 -

1 stop23h 10m

Deal found 29/8£553

Sun 11/1022:40 -

1 stop14h 05m

Mon 26/1012:10 -

1 stop14h 30m

Deal found 30/8£554

Tue 3/1109:20 -

2 stops26h 05m

Mon 9/1110:25 -

2 stops28h 55m

Deal found 29/8£555

Tue 1/1216:55 -

Nonstop10h 45m

Sun 6/1207:50 -

1 stop18h 50m

Deal found 30/8£556

Fri 2/1010:20 -

2 stops21h 45m

Mon 12/1013:10 -

2 stops27h 10m

Deal found 30/8£556

Fri 2/1010:20 -

2 stops23h 25m

Mon 12/1007:25 -

1 stop32h 55m

Deal found 30/8£556

Sun 1/1109:20 -

1 stop21h 50m

Mon 16/1116:10 -

1 stop23h 10m

Deal found 1/9£556

Mon 19/1020:50 -

1 stop18h 10m

Mon 26/1005:55 -

2 stops33h 25m

Deal found 31/8£557

Mon 21/917:10 -

Nonstop10h 25m

Tue 29/910:30 -

Nonstop11h 20m

Deal found 31/8£557

Tue 8/1215:20 -

1 stop36h 30m

Mon 28/1209:50 -

1 stop16h 50m

Deal found 1/9£558

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 3 September 2026.

Thu 22/1019:10 -

2 stops30h 25m

Tue 16/306:40 -

1 stop18h 20m

Deal found 29/8£593

Mon 2/1106:30 -

2 stops22h 20m

Sun 15/1107:50 -

1 stop15h 45m

Deal found 3/9£623

Tue 22/916:20 -

1 stop15h 15m

Tue 20/1021:15 -

2 stops49h 15m

Deal found 29/8£625

Wed 11/1118:30 -

1 stop31h 25m

Wed 18/1110:55 -

1 stop37h 40m

Deal found 31/8£640

Tue 1/1209:59 -

2 stops21h 46m

Thu 17/1210:00 -

2 stops19h 26m

Deal found 2/9£651

Mon 19/1019:45 -

Nonstop10h 25m

Tue 27/1006:35 -

1 stop16h 15m

Deal found 31/8£662

Sun 15/1116:40 -

Nonstop10h 15m

Thu 26/1106:30 -

1 stop13h 15m

Deal found 3/9£662

Tue 1/1219:25 -

2 stops18h 00m

Tue 8/1214:25 -

2 stops34h 05m

Deal found 1/9£689

Sun 18/1015:15 -

2 stops21h 50m

Thu 29/1019:25 -

2 stops26h 05m

Deal found 29/8£720

Fri 16/1006:10 -

1 stop16h 20m

Sat 17/1008:40 -

1 stop19h 00m

Deal found 31/8£746

Mon 28/920:50 -

1 stop30h 35m

Sun 4/1013:00 -

1 stop37h 55m

Deal found 2/9£788

Wed 21/1019:10 -

1 stop14h 30m

Sat 13/315:35 -

2 stops33h 25m

Deal found 29/8£593

Tue 1/1208:30 -

3 stops25h 40m

Wed 9/1219:05 -

2 stops29h 30m

Deal found 30/8£626

Fri 19/219:15 -

1 stop30h 35m

Mon 1/321:35 -

2 stops49h 10m

Deal found 30/8£627

Wed 25/1112:45 -

1 stop37h 10m

Wed 2/1210:55 -

1 stop37h 40m

Deal found 31/8£640

Sun 4/1017:55 -

Nonstop10h 20m

Tue 20/1006:30 -

1 stop13h 15m

Deal found 3/9£662

Sat 17/1022:30 -

1 stop24h 00m

Tue 27/1006:35 -

1 stop16h 40m

Deal found 30/8£665

Sun 17/106:30 -

2 stops17h 40m

Mon 25/120:05 -

1 stop23h 40m

Deal found 30/8£665

Mon 19/1023:55 -

2 stops25h 40m

Fri 30/1010:35 -

2 stops38h 25m

Deal found 29/8£622

Thu 8/1016:30 -

1 stop33h 15m

Mon 12/1012:05 -

2 stops33h 30m

Deal found 30/8£650

Sun 4/1006:15 -

2 stops16h 15m

Tue 20/1007:25 -

1 stop15h 05m

Deal found 3/9£664

Wed 30/1206:00 -

2 stops18h 10m

Thu 7/117:05 -

1 stop26h 40m

Deal found 2/9£676

Sun 27/906:40 -

2 stops22h 20m

Tue 13/1006:00 -

2 stops24h 41m

Deal found 30/8£747

Tue 3/1118:55 -

Nonstop10h 35m

Tue 10/1115:20 -

Nonstop11h 25m

Deal found 1/9£683

Sun 8/1118:30 -

1 stop37h 50m

Sun 15/1110:55 -

1 stop37h 40m

Deal found 2/9£684

Fri 27/1116:45 -

2 stops32h 50m

Thu 10/1219:50 -

2 stops27h 00m

Deal found 2/9£629

Tue 15/920:10 -

1 stop18h 00m

Mon 21/913:00 -

2 stops27h 20m

Deal found 3/9£665

Sat 7/1117:15 -

2 stops19h 25m

Fri 13/1121:35 -

2 stops25h 40m

Deal found 1/9£679

Tue 17/1113:50 -

1 stop21h 45m

Mon 23/1120:05 -

1 stop23h 40m

Deal found 2/9£680

Sun 4/1012:55 -

Nonstop10h 30m

Tue 20/1016:15 -

Nonstop11h 00m

Deal found 3/9£683

Find flight deals from California to London

Round-trip from	£553
One-way from	£121
Popular in	June
Cheapest in	February
Average price	£556
Good round-trip deal	£727 or less
Good one-way deal	£340 or less

Aer Lingus
29/11-6/12
2 total stops
34h 10m total
California to London

Search Deals

KLM
28/9-31/12
1 total stop
13h 45m total
California to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£116 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 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

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 11/10

13:36-13:05

2 stops15h 29m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sat 26/9

21:30-20:45

1 stop15h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sat 27/2

22:40-06:25

1 stop23h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 11/11

06:15-07:50

2 stops17h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 29/12

06:15-06:25

1 stop16h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 20/10

07:45-11:20

1 stop19h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 20/9

10:54-15:00

1 stop20h 06m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

Los AngelesLondon

LAX Los Angeles - LCY London City

LAXLCY

Los Angeles

Sun 27/12

13:50-19:35

1 stop21h 45m

London City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£276

Los AngelesLondon

LAX Los Angeles - LTN London Luton

LAXLTN

Los Angeles

Wed 7/10

15:15-22:40

2 stops23h 25m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£279

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Wed 7/10

10:21-15:40

2 stops21h 19m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£280

Flights are sorted by cheapest return flights first.

Deals found on 2/9

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.

LAX-LHR

LAX-LGW

LAX-STN

LAX-LTN

SAN-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

LAX-LHR

LAX-LGW

LAX-STN

LAX-LTN

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 £494). Flying from California to London in June is currently the most expensive (average of £965). 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 16% 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 Wednesday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (43 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 £428 and £723 in November.
The cheapest return price found within the last 5 days was £553 on Multiple Airlines (29 Nov–6 Dec).

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 Saturday 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 15h 15m. Airlines will cover a distance of 5374 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 £120 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from £161 and Virgin Atlantic from £230 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 (90%), Delta (90%), Virgin Atlantic( 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 £1,429, our data indicates the cheapest price to be £240. The most popular route (Los Angeles - London Heathrow), is priced around £441.
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 £494). Flying from California to London in June is currently the most expensive (average of £965). 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.

See more FAQs

Hounslow

Milton Keynes

Luton

Gatwick

Wembley

Slough

Ilford

Hayes

Croydon

Colchester

Eastbourne

Brentford

Barnet

Southall

Southend-on-Sea

Enfield

Kingston upon Thames

Watford

Dover

Ipswich

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

London flight routes

Other flight options

Popular flights

Top destinations

Alternative routes for California to London

John F Kennedy Intl to Heathrow flights

Newark to Heathrow flights

Dulles Intl to Heathrow flights

Boston to Heathrow flights

Newark to Gatwick flights

LaGuardia to Heathrow flights

John F Kennedy Intl to London City flights

John F Kennedy Intl to Stansted flights

Baltimore to Heathrow flights

O'Hare Intl to Heathrow flights

Los Angeles to Heathrow flights

LaGuardia to Gatwick flights

San Francisco to Heathrow flights

John F Kennedy Intl to Gatwick flights

Dallas/Fort Worth to Heathrow flights

Newark to London City flights

Seattle to Heathrow flights

Orlando to Heathrow flights

Newark to Stansted flights

Atlanta to Heathrow flights

Newark to Luton flights

Reagan-National to Heathrow flights

Dulles Intl to Gatwick flights

Boston to Gatwick flights

Miami to Heathrow flights

Boston to London City flights

Dulles Intl to London City flights

Philadelphia to Heathrow flights

Denver to Heathrow flights

Hobby to Heathrow flights

Boston to Stansted flights

Baltimore to Gatwick flights

O'Hare Intl to Gatwick flights

Newark to Edinburgh flights

Los Angeles to Gatwick flights

George Bush Intcntl to Heathrow flights

O'Hare Intl to Stansted flights

San Francisco to Gatwick flights

Sky Harbor Intl to Heathrow flights

O'Hare Intl to London City flights

Reagan-National to Gatwick flights

Boston to Luton flights

Los Angeles to Stansted flights

San Francisco to London City flights

Los Angeles to London City flights

John F Kennedy Intl to Edinburgh flights

Austin to Heathrow flights

San Francisco to Stansted flights

Top 10 airlines flying from California to London

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£236	Average£476	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Finnair	Cheapest£319	Average£796	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£394	Average£772	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£394	Average£791	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£438	Average£630	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£452	Average£800	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£458	Average£725	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Delta	Cheapest£472	Average£1,027	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest£559	Average£895	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air France	Cheapest£577	Average£982	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from California to London from £121

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. 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 3 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 3 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 3 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 3 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 3 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 3 September 2026.

Last-minute flights from California to LondonDiscover last-minute flight deals from California to London. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from California to London. Data last updated 3 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 3 September 2026.

Search for one-way flight options from California to London. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from California to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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 3 September 2026.

It’s typically best to fly out from California to London in the morning. Doing so could potentially save you 16% 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 3 September 2026.

The most flights from USCA to LON are scheduled on a Wednesday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (43 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 £428 and £723 in November.The cheapest return price found within the last 5 days was £553 on Multiple Airlines (29 Nov–6 Dec).

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 29 August 2026.

Travellers seeking maximum savings on their California to London flight should consider departing on Saturday 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?

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for California to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from California to London by cabin class

Find flights from California to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

California and London flights

Browse other California and London flight options. Last updated on 3 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

California to London flights

Consider these flights travelling from California to London.

Top 10 airlines flying from California to London

Fly with Cheapflights

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?

100% Free

Book with Flexibility

Travel Smart

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 3 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 3 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 3 September 2026.

Last-minute flights from California to London
Discover last-minute flight deals from California to London. Data last updated 3 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 3 September 2026.

California to London flights typically cost between £428 and £723 in November.
The cheapest return price found within the last 5 days was £553 on Multiple Airlines (29 Nov–6 Dec).