How long is the flight from London to California?

Alaska Airlines, Delta, and United Airlines can get you from London to California in just under 16h 40m. Your travel time can differ by up to 12h 51m. London and California are separated by a distance of 5439 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 (£172), JetBlue (£205), and Virgin Atlantic (£302).

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 £2,380. 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 Malaysia Airlines (93%), SriLankan Airlines (90%) or Fiji Airways (83%) 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.

£323+ 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 15 October 2026.

Sat 21/1120:45 -

1 stop29h 55m

Sat 5/1220:30 -

1 stop13h 20m

Deal found 14/10£392

Thu 22/1014:10 -

1 stop35h 00m

Thu 10/1217:10 -

1 stop16h 20m

Deal found 14/10£393

Sat 12/1212:10 -

1 stop14h 35m

Fri 1/120:25 -

1 stop15h 25m

Deal found 15/10£394

Mon 2/1116:35 -

1 stop30h 40m

Sat 7/1117:10 -

1 stop32h 40m

Deal found 15/10£394

Fri 11/1208:50 -

1 stop17h 50m

Wed 23/1220:25 -

1 stop15h 25m

Deal found 15/10£396

Fri 30/1008:50 -

1 stop17h 50m

Tue 3/1107:12 -

2 stops17h 53m

Deal found 14/10£397

Thu 26/1109:30 -

2 stops29h 50m

Tue 1/1209:20 -

2 stops25h 40m

Deal found 15/10£398

Fri 6/1119:55 -

1 stop27h 20m

Thu 26/1117:10 -

1 stop17h 45m

Deal found 15/10£398

Thu 12/1108:50 -

1 stop17h 50m

Thu 3/1220:25 -

1 stop13h 25m

Deal found 15/10£400

Thu 26/1116:10 -

1 stop23h 10m

Tue 1/1209:20 -

1 stop21h 50m

Deal found 15/10£400

Tue 20/1009:50 -

1 stop16h 35m

Wed 28/1021:25 -

1 stop13h 25m

Deal found 14/10£401

Thu 12/1106:00 -

1 stop17h 15m

Thu 26/1117:10 -

1 stop16h 20m

Deal found 15/10£403

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 15 October 2026.

Sun 10/114:45 -

1 stop29h 31m

Fri 22/119:10 -

1 stop33h 10m

Deal found 11/10£432

Tue 12/106:30 -

2 stops20h 18m

Sat 23/105:45 -

1 stop20h 15m

Deal found 10/10£456

Fri 27/1106:35 -

1 stop16h 40m

Sat 12/1210:15 -

2 stops15h 25m

Deal found 10/10£470

Thu 12/1114:25 -

2 stops34h 10m

Thu 26/1112:15 -

2 stops20h 05m

Deal found 14/10£487

Wed 16/1206:30 -

1 stop14h 05m

Mon 11/112:50 -

Nonstop10h 35m

Deal found 15/10£493

Wed 16/1207:30 -

2 stops21h 25m

Wed 23/1218:25 -

Nonstop10h 40m

Deal found 12/10£498

Wed 18/1110:00 -

1 stop14h 35m

Wed 2/1211:35 -

2 stops20h 10m

Deal found 11/10£499

Mon 9/1121:35 -

2 stops25h 40m

Tue 24/1117:10 -

1 stop32h 40m

Deal found 12/10£514

Mon 12/409:55 -

1 stop14h 10m

Sun 25/418:25 -

1 stop13h 35m

Deal found 12/10£526

Wed 25/1107:05 -

3 stops21h 15m

Fri 4/1207:00 -

2 stops25h 00m

Deal found 12/10£588

Sun 6/1213:50 -

1 stop17h 57m

Mon 14/1208:00 -

1 stop14h 50m

Deal found 14/10£775

Sun 8/1110:05 -

1 stop18h 21m

Sun 15/1118:14 -

1 stop29h 11m

Deal found 11/10£791

Sun 8/1114:45 -

1 stop16h 21m

Sun 22/1106:00 -

1 stop22h 20m

Deal found 11/10£434

Wed 18/1106:30 -

1 stop13h 15m

Mon 30/1114:47 -

1 stop12h 48m

Deal found 12/10£457

Wed 4/1114:45 -

1 stop15h 57m

Mon 23/1108:55 -

1 stop19h 25m

Deal found 12/10£434

Fri 4/1210:00 -

2 stops20h 32m

Tue 8/1208:00 -

2 stops17h 00m

Deal found 15/10£499

Thu 12/1109:00 -

2 stops21h 55m

Thu 19/1107:15 -

1 stop20h 35m

Deal found 15/10£513

Wed 13/118:40 -

1 stop29h 50m

Thu 28/119:25 -

2 stops18h 00m

Deal found 14/10£519

Sun 15/1108:55 -

1 stop21h 54m

Sun 29/1109:55 -

1 stop17h 40m

Deal found 11/10£473

Sun 8/1114:45 -

1 stop16h 59m

Sun 22/1106:00 -

1 stop22h 20m

Deal found 11/10£434

Thu 24/1209:50 -

2 stops20h 36m

Sun 27/1219:14 -

1 stop30h 46m

Deal found 13/10£474

Mon 1/210:00 -

2 stops20h 52m

Thu 4/210:45 -

2 stops21h 00m

Deal found 11/10£522

Mon 26/1014:45 -

1 stop34h 16m

Sun 8/1106:15 -

1 stop22h 05m

Deal found 14/10£439

Thu 21/119:30 -

2 stops34h 46m

Mon 25/107:00 -

2 stops42h 20m

Deal found 12/10£597

Sun 15/1118:40 -

1 stop29h 50m

Mon 30/1119:25 -

2 stops18h 00m

Deal found 13/10£543

Sun 20/1212:00 -

2 stops27h 49m

Fri 15/119:03 -

2 stops17h 32m

Deal found 10/10£544

Thu 24/1216:55 -

Nonstop11h 20m

Wed 30/1217:30 -

Nonstop10h 40m

Deal found 14/10£600

Sat 31/1014:45 -

1 stop35h 24m

Thu 12/1112:07 -

1 stop16h 13m

Deal found 14/10£439

Tue 17/1111:50 -

Nonstop11h 00m

Sun 29/1116:40 -

Nonstop10h 15m

Deal found 15/10£489

Thu 18/210:25 -

2 stops19h 22m

Sun 28/208:00 -

2 stops23h 00m

Deal found 12/10£651

Find flight deals from London to California

Round-trip from	£392
One-way from	£323
Popular in	December
Cheapest in	February
Average price	£497
Good round-trip deal	£400 or less
Good one-way deal	£297 or less

Aer Lingus
21/11-5/12
2 total stops
43h 15m total
London to California

Search Deals

12/12-31/12
2 total stops
23h 33m 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 October 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

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Thu 3/12

14:45-22:59

1 stop16h 14m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£354

LondonPalm Springs

LHR London Heathrow - PSP Palm Springs

LHRPSP

London Heathrow

Tue 15/12

14:45-21:41

1 stop14h 56m

Palm Springs

Wed 31/12

00:00-09:00

Nonstop0h 00m

£354

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Fri 29/1

14:45-22:41

1 stop15h 56m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£357

LondonSan Jose

LHR London Heathrow - SJC San Jose

LHRSJC

London Heathrow

Sun 13/12

14:45-22:00

1 stop15h 15m

San Jose

Wed 31/12

00:00-09:00

Nonstop0h 00m

£370

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles

LHRLAX

London Heathrow

Sun 22/11

07:30-21:22

2 stops21h 52m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£386

LondonPalm Springs

LHR London Heathrow - PSP Palm Springs

LHRPSP

London Heathrow

Sun 13/12

09:55-10:58

3 stops57h 03m

Palm Springs

Wed 31/12

00:00-09:00

Nonstop0h 00m

£394

LondonSanta Ana

LHR London Heathrow - SNA Santa Ana J. Wayne/Orange Cnty

LHRSNA

London Heathrow

Sun 22/11

18:40-20:45

2 stops34h 05m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-09:00

Nonstop0h 00m

£395

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Mon 11/1

07:30-20:25

2 stops20h 55m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£398

LondonOntario

LHR London Heathrow - ONT Ontario

LHRONT

London Heathrow

Wed 3/2

07:30-20:01

2 stops20h 31m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£398

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles

LHRLAX

London Heathrow

Fri 27/11

15:20-18:45

Nonstop11h 25m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£406

Flights are sorted by cheapest return flights first.

Deals found on 13/10

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-ONT

LHR-LAX

LHR-PSP

LHR-SNA

LHR-SFO

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-ONT

LHR-LAX

LHR-PSP

LHR-SNA

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 £456). Flying from London to California in December is currently the most expensive (average of £605). 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 Monday (56 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 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 £414 and £585 in November.
The cheapest return price found within the last 5 days was £392 on Aer Lingus (21 Nov–5 Dec).

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 Austrian Airlines,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.

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.

Austrian Airlines

7.6

Good

980 reviews

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

Virgin Atlantic

7.5

Good

695 reviews

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

United Airlines

7.4

Good

10,370 reviews

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

Lufthansa

6.8

Okay

8,278 reviews

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

British Airways

6.7

Okay

8,260 reviews

Austrian Airlines

7.6

Good

980 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2026

VIE - EWR

Related info for your journey

How long is the flight from London to California?
Alaska Airlines, Delta, and United Airlines can get you from London to California in just under 16h 40m. Your travel time can differ by up to 12h 51m. London and California are separated by a distance of 5439 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 (£172), JetBlue (£205), and Virgin Atlantic (£302).
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 Malaysia Airlines (93%), SriLankan Airlines (90%) or Fiji Airways (83%) 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 £2,380. 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 £456). Flying from London to California in December is currently the most expensive (average of £605). 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

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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
United Airlines	Cheapest£308	Average£603	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
TAP AIR PORTUGAL	Cheapest£341	Average£475	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Delta	Cheapest£341	Average£626	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Virgin Atlantic	Cheapest£343	Average£590	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
SWISS	Cheapest£351	Average£550	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Austrian Airlines	Cheapest£354	Average£503	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Alaska Airlines	Cheapest£354	Average£606	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Scandinavian Airlines	Cheapest£356	Average£499	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Brussels Airlines	Cheapest£357	Average£511	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Air Canada	Cheapest£364	Average£552	FlexibilityNo cancel fee	On-time67%	Search Air Canada 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 £323

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. 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 15 October 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 15 October 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 15 October 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 15 October 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 15 October 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 15 October 2026.

Last-minute flights from London to CaliforniaDiscover last-minute flight deals from London to California. Data last updated 15 October 2026 and is based on user searches.

Discover last-minute flight deals from London to California. Data last updated 15 October 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 15 October 2026.

Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated 15 October 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 15 October 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 15 October 2026.

The most flights from LON to USCA are scheduled on a Monday (56 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 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 £414 and £585 in November.The cheapest return price found within the last 5 days was £392 on Aer Lingus (21 Nov–5 Dec).

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 Austrian Airlines,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 15 October 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 15 October 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 15 October 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 15 October 2026.

Last-minute flights from London to California
Discover last-minute flight deals from London to California. Data last updated 15 October 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 15 October 2026.

London to California flights typically cost between £414 and £585 in November.
The cheapest return price found within the last 5 days was £392 on Aer Lingus (21 Nov–5 Dec).