How long is the flight from London to California?

Alaska Airlines, United Airlines, and Virgin Atlantic can get you from London to California in just under 13h 15m. Your travel time can differ by up to 21h 06m. London and California are separated by a distance of 5350 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

The cheapet airlines for a one-way flight from London to California are WestJet (£170), JetBlue (£203), and SWISS (£308).

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

If weather is an important factor for your trip to California, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the most popular routes from London to California?

The most popular flight routes from London to California are London Heathrow - Los Angeles, London Heathrow - San Francisco and London Heathrow - Las Vegas Harry Reid Intl.

What are the cheapest flights from London to California?

The cheapest flight price from London to California is £341. On average you can expect to pay £2,435. The most popular route, (London Heathrow - Los Angeles), can usually be booked for £383.

What are the most reliable airlines from London to California?

No one likes to see their flight delayed. When booking a flight from London to California consider choosing SriLankan Airlines (98%), Malaysia Airlines (94%) or Fiji Airways (82%) as they are the most reliable in getting you off to your destination on time.

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

Consider British Airways, Virgin Atlantic or Lufthansa when booking your flight. These represent the most popular airlines when flying from London to California.

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

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

How can I find direct flights from London to California?

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

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

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

£347+ Cheap Flights from London to California

Cheap flight deals from London to California

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from London to California
Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Wed 11/1112:20 -

1 stop15h 57m

Sun 13/1206:00 -

1 stop17h 45m

Deal found 28/10£384

Mon 9/1113:40 -

1 stop33h 35m

Tue 24/1117:10 -

1 stop21h 30m

Deal found 2/11£385

Mon 14/1206:00 -

1 stop16h 25m

Sat 9/116:35 -

1 stop16h 55m

Deal found 30/10£386

Wed 25/1113:40 -

1 stop33h 35m

Sat 28/1117:10 -

1 stop20h 25m

Deal found 1/11£386

Mon 9/1116:35 -

1 stop30h 40m

Tue 24/1117:10 -

1 stop32h 40m

Deal found 2/11£386

Thu 5/1106:00 -

1 stop17h 15m

Thu 12/1117:10 -

1 stop17h 45m

Deal found 30/10£387

Wed 25/1116:35 -

1 stop30h 40m

Sat 28/1117:10 -

1 stop32h 40m

Deal found 30/10£388

Mon 9/1113:40 -

1 stop33h 35m

Tue 17/1117:10 -

1 stop20h 25m

Deal found 29/10£389

Mon 23/1116:35 -

1 stop30h 40m

Sat 28/1117:10 -

1 stop32h 40m

Deal found 28/10£389

Sun 6/1212:05 -

1 stop18h 19m

Sun 13/1206:35 -

1 stop17h 20m

Deal found 28/10£390

Mon 9/1116:35 -

1 stop30h 40m

Sat 14/1117:10 -

1 stop32h 40m

Deal found 30/10£390

Wed 4/1113:40 -

1 stop33h 35m

Tue 10/1117:10 -

1 stop21h 30m

Deal found 28/10£391

Best flights from London to California
Discover carefully curated flight deals from London to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Thu 21/114:45 -

1 stop34h 21m

Mon 25/114:35 -

1 stop13h 45m

Deal found 28/10£430

Thu 26/1109:00 -

1 stop15h 35m

Wed 9/1218:55 -

Nonstop10h 35m

Deal found 28/10£482

Sat 16/109:00 -

1 stop15h 35m

Fri 22/110:15 -

2 stops15h 25m

Deal found 30/10£492

Sat 12/1206:30 -

1 stop13h 15m

Mon 28/1217:20 -

1 stop15h 10m

Deal found 30/10£497

Tue 15/1208:40 -

1 stop35h 05m

Wed 23/1223:59 -

1 stop23h 06m

Deal found 28/10£501

Thu 10/1206:30 -

1 stop13h 15m

Thu 24/1216:40 -

Nonstop10h 15m

Deal found 30/10£502

Mon 30/1120:05 -

1 stop28h 30m

Sun 6/1219:30 -

2 stops17h 55m

Deal found 29/10£504

Sat 5/1215:20 -

Nonstop11h 25m

Sat 16/117:25 -

Nonstop10h 25m

Deal found 2/11£521

Tue 10/1106:00 -

1 stop17h 15m

Sat 14/1117:10 -

1 stop21h 30m

Deal found 31/10£538

Mon 26/410:20 -

2 stops20h 35m

Mon 3/507:00 -

2 stops27h 30m

Deal found 28/10£587

Thu 26/1110:05 -

1 stop32h 45m

Wed 9/1212:45 -

1 stop25h 50m

Deal found 29/10£779

Thu 12/1114:45 -

1 stop13h 59m

Thu 4/314:00 -

1 stop14h 20m

Deal found 30/10£433

Fri 29/112:15 -

2 stops17h 50m

Mon 1/207:00 -

2 stops28h 30m

Deal found 1/11£897

Wed 25/1114:45 -

1 stop16h 46m

Tue 8/1211:57 -

1 stop16h 23m

Deal found 29/10£433

Thu 26/1106:20 -

1 stop14h 40m

Wed 9/1209:53 -

1 stop13h 52m

Deal found 28/10£509

Sun 6/1215:20 -

Nonstop11h 25m

Thu 7/118:55 -

Nonstop10h 35m

Deal found 28/10£512

Thu 26/1110:00 -

2 stops19h 29m

Wed 9/1211:30 -

2 stops20h 15m

Deal found 28/10£523

Mon 16/1114:45 -

1 stop16h 21m

Mon 1/312:00 -

1 stop16h 20m

Deal found 30/10£433

Tue 5/119:20 -

1 stop37h 13m

Tue 15/616:35 -

Nonstop10h 25m

Deal found 28/10£541

Tue 12/117:05 -

Nonstop11h 10m

Sat 16/117:10 -

Nonstop10h 25m

Deal found 1/11£550

Mon 21/1209:50 -

1 stop22h 16m

Sun 17/116:59 -

1 stop15h 31m

Deal found 28/10£516

Thu 24/1211:35 -

1 stop29h 56m

Wed 6/110:39 -

1 stop15h 01m

Deal found 31/10£519

Fri 11/1214:45 -

1 stop14h 56m

Thu 24/1207:16 -

1 stop21h 04m

Deal found 30/10£433

Sat 23/106:40 -

3 stops21h 25m

Fri 5/206:30 -

2 stops25h 30m

Deal found 30/10£588

Tue 15/1206:20 -

1 stop14h 40m

Fri 25/1206:00 -

1 stop17h 05m

Deal found 30/10£516

Sat 26/1211:35 -

2 stops19h 29m

Sun 13/612:15 -

1 stop13h 45m

Deal found 28/10£522

Thu 3/1214:45 -

1 stop16h 05m

Mon 7/1207:00 -

1 stop21h 20m

Deal found 31/10£434

Tue 17/1111:50 -

Nonstop11h 00m

Fri 4/1216:40 -

Nonstop10h 15m

Deal found 30/10£579

Sat 21/1106:40 -

3 stops23h 32m

Sun 29/1106:30 -

2 stops28h 00m

Deal found 2/11£588

Thu 10/1210:00 -

2 stops22h 11m

Sat 26/1215:20 -

1 stop16h 25m

Deal found 31/10£627

Find flight deals from London to California

Round-trip from	£384
One-way from	£347
Popular in	December
Cheapest in	February
Average price	£498
Good round-trip deal	£449 or less
Good one-way deal	£294 or less

Delta
16/11-22/11
2 total stops
36h 47m total
London to California

Search Deals

Alaska Airlines
24/12-31/12
1 total stop
32h 18m total
London to California

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£7 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

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

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles

LHRLAX

London Heathrow

Mon 11/1

15:20-18:45

Nonstop11h 25m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£373

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Wed 9/12

14:45-22:00

1 stop15h 15m

San Jose

Wed 31/12

00:00-09:00

Nonstop0h 00m

£381

LondonOakland

LHR London Heathrow - OAK Oakland

LHROAK

London Heathrow

Mon 11/1

14:45-22:05

1 stop15h 20m

Oakland

Wed 31/12

00:00-09:00

Nonstop0h 00m

£385

LondonSacramento

LHR London Heathrow - SMF Sacramento Intl

LHRSMF

London Heathrow

Tue 15/12

06:00-14:02

2 stops40h 02m

Sacramento Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£395

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 10/12

10:05-13:20

Nonstop11h 15m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£403

LondonSacramento

LHR London Heathrow - SMF Sacramento Intl

LHRSMF

London Heathrow

Mon 30/11

14:50-10:35

3 stops27h 45m

Sacramento Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£411

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 14/1

10:05-13:20

Nonstop11h 15m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£414

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Tue 15/12

13:00-21:33

1 stop16h 33m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£414

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles

LHRLAX

London Heathrow

Thu 7/1

13:00-21:39

1 stop16h 39m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£417

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Thu 21/1

14:45-17:06

1 stop34h 21m

San Jose

Mon 25/1

14:35-12:20

1 stop13h 45m

£430

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to California

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

LHR-SFO

LHR-LAX

LGW-LAX

LHR-SJC

LHR-SMF

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 London to California

LON-USCA

LHR-SFO

LHR-LAX

LGW-LAX

LHR-SJC

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

Currently, February is the cheapest month in which you can book a flight from London to California (average of £450). Flying from London to California in December is currently the most expensive (average of £601). 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 LON to CA?

When flying from London to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to California

The most flights from LON to USCA are scheduled on a Sunday (52 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (31 on average).

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

Airfare is below average for this route at the moment.

London to California flights typically cost between £442 and £586 in April.
The cheapest return price found within the last 5 days was £385 on Scandinavian Airlines (11 Apr–17 Apr).

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

The best time to book flights from London to California is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing California

Check out reviews from past customers who have flown with KLM,Virgin Atlantic, andUnited Airlines from London to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

KLM

7.8

Good

1,594 reviews

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Virgin Atlantic

7.5

Good

697 reviews

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

United Airlines

7.3

Good

10,464 reviews

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Lufthansa

6.8

Okay

8,297 reviews

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

British Airways

6.7

Okay

8,278 reviews

KLM

7.8

Good

1,594 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Related info for your journey

How long is the flight from London to California?
Alaska Airlines, United Airlines, and Virgin Atlantic can get you from London to California in just under 13h 15m. Your travel time can differ by up to 21h 06m. London and California are separated by a distance of 5350 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from London to California one-way?
The cheapet airlines for a one-way flight from London to California are WestJet (£170), JetBlue (£203), and SWISS (£308).
What are the most popular routes from London to California?
The most popular flight routes from London to California are London Heathrow - Los Angeles, London Heathrow - San Francisco and London Heathrow - Las Vegas Harry Reid Intl.
What are the most reliable airlines from London to California?
No one likes to see their flight delayed. When booking a flight from London to California consider choosing SriLankan Airlines (98%), Malaysia Airlines (94%) or Fiji Airways (82%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from London to California?
The cheapest flight price from London to California is £341. On average you can expect to pay £2,435. The most popular route, (London Heathrow - Los Angeles), can usually be booked for £383.
Can I find deals for flights from London to California that include hotel bookings?
Yes. In addition to deals on London to California flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to California?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to California.
Can I find deals for business class flights from London to California?
Yes. Cheapflights offers flight deals from London to California 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 London to California?
Currently, February is the cheapest month in which you can book a flight from London to California (average of £450). Flying from London to California in December is currently the most expensive (average of £601). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to California

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Top 10 airlines flying from London to California

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£230	Average£458	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
United Airlines	Cheapest£305	Average£593	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	Cheapest£338	Average£627	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
SWISS	Cheapest£339	Average£544	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Virgin Atlantic	Cheapest£340	Average£586	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Austrian Airlines	Cheapest£350	Average£498	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Scandinavian Airlines	Cheapest£352	Average£526	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Brussels Airlines	Cheapest£354	Average£504	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Air Canada	Cheapest£360	Average£548	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£361	Average£570	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to California from London today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to California from London.

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

Need flexible booking options for your flight to California from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on London to California 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 London to California from £347

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to California

Cheapest flights from London to CaliforniaExplore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from London to CaliforniaDiscover carefully curated flight deals from London to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Discover carefully curated flight deals from London to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Direct flights from London to CaliforniaExplore direct flight options from London to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 November 2026.

Explore direct flight options from London to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 November 2026.

Last-minute flights from London to CaliforniaDiscover last-minute flight deals from London to California. Data last updated 2 November 2026 and is based on user searches.

Discover last-minute flight deals from London to California. Data last updated 2 November 2026 and is based on user searches.

One-way flights from London to CaliforniaSearch for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

Find flight deals from London to California

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 London to California that are best for you.

Best time to book a flight from London to California

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

Cheapflights Insights

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

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

Find hourly flight availability from London to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 November 2026.

When flying from London to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to California

Explore weekly flight availability from London to California. 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 2 November 2026.

The most flights from LON to USCA are scheduled on a Sunday (52 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (31 on average).

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

Airfare is below average for this route at the moment.

London to California flights typically cost between £442 and £586 in April.The cheapest return price found within the last 5 days was £385 on Scandinavian Airlines (11 Apr–17 Apr).

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

The best time to book flights from London to California is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing California

Check out reviews from past customers who have flown with KLM,Virgin Atlantic, andUnited Airlines from London to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London to California?

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

What are the most popular routes from London to California?

What are the most reliable airlines from London to California?

What are the cheapest flights from London to California?

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

How can I find direct flights from London to California?

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

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

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 London to California

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

Complete your trip

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

Direct flights to United States

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

Search flights from London to California by cabin class

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

London and California flights

Browse other London and California flight options. Last updated on 2 November 2026.

Popular flight searches

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London to California flights

Consider these flights travelling from London to California.

Top 10 airlines flying from London to California

Fly with Cheapflights

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

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

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

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

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Cheapest flights from London to California
Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from London to California
Discover carefully curated flight deals from London to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Direct flights from London to California
Explore direct flight options from London to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 November 2026.

Last-minute flights from London to California
Discover last-minute flight deals from London to California. Data last updated 2 November 2026 and is based on user searches.

One-way flights from London to California
Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

London to California flights typically cost between £442 and £586 in April.
The cheapest return price found within the last 5 days was £385 on Scandinavian Airlines (11 Apr–17 Apr).