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 £128 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £206 and WestJet 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 City.

What are the cheapest flights from California to London?

Looking for the cheapest flight from California to London? While on average our users pay £2,217, our data indicates the cheapest price to be £322. The most popular route (Los Angeles - London Heathrow), is priced around £340.

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: Air Canada (83%), Austrian Airlines (83%), United Airlines( 83%).

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 American Airlines, Air France or Finnair as they are the most popular for this route.

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

To save up to 44% on this flight, we recommend booking at least 56 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from California to London from £548 1-2 weeks out and tickets from £732 for flights departing within the next 72 hours.

What is the cheapest month to fly from California to London?

October can be a great time to fly to London from California with a flight ticket averaging about £560. Cheapflights users have found deals in the month of October for as cheap as £332. The most expensive prices can be found in the month of December.

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.

£128+ Flights from California to London

Cheap flight deals from California to London

Round-trip from	£332
One-way from	£128
Popular in	December
Cheapest in	October
Average price	£506
Good round-trip deal	£359 or less
Good one-way deal	£247 or less

Norse Atlantic UK
8/8-30/8
Nonstop
21h 40m total
California to London

Search Deals

Norse Atlantic UK
19/7
Nonstop
10h 25m total
California to London

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£27 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

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

Find flight deals from California to London

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 17 April 2025.

Fri 8/816:30LAX - LGW

Nonstop10h 25mNorse Atlantic UK

Sat 30/810:45LGW - LAX

Nonstop11h 15mNorse Atlantic UK

Deal found 16/4£332

Sun 11/516:30LAX - LGW

Nonstop10h 25mMultiple Airlines

Sun 25/507:40LGW - LAX

1 stop17h 50mMultiple Airlines

Deal found 15/4£401

Fri 19/917:05LAX - LHR

Nonstop10h 30mIberia

Fri 3/1014:45LHR - LAX

Nonstop11h 20mIberia

Deal found 15/4£429

Sun 11/516:30LAX - LGW

Nonstop10h 25mA.P.G.

Sun 25/510:55LGW - LAX

Nonstop11h 15mA.P.G.

Deal found 15/4£435

Thu 1/520:15LAX - LHR

1 stop14h 40mAer Lingus

Wed 7/509:50LHR - LAX

1 stop16h 35mAer Lingus

Deal found 16/4£444

Tue 23/916:40LAX - LHR

1 stop18h 10mTAP AIR PORTUGAL

Thu 9/1018:45LHR - LAX

1 stop27h 50mTAP AIR PORTUGAL

Deal found 16/4£445

Fri 16/522:50LAX - LHR

Nonstop10h 25mVirgin Atlantic

Fri 23/509:55LHR - LAX

Nonstop11h 20mVirgin Atlantic

Deal found 16/4£446

Sun 11/515:30LAX - LHR

Nonstop10h 30mAir France

Wed 21/509:00LHR - LAX

1 stop15h 05mAir France

Deal found 15/4£447

Wed 30/421:25LAX - LTN

1 stop17h 10mMultiple Airlines

Sat 10/506:05LTN - LAX

1 stop21h 00mMultiple Airlines

Deal found 15/4£447

Sun 9/1116:40SFO - LHR

1 stop17h 50mScandinavian Airlines

Sun 16/1121:05LHR - SFO

2 stops25h 30mScandinavian Airlines

Deal found 16/4£449

Sun 4/512:05LAX - LHR

1 stop13h 55mMultiple Airlines

Sat 10/519:30LHR - LAX

1 stop25h 35mMultiple Airlines

Deal found 15/4£450

Sat 17/515:30LAX - LHR

Nonstop10h 30mDelta

Wed 4/606:15LHR - LAX

1 stop17h 50mDelta

Deal found 16/4£451

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 17 April 2025.

Fri 8/816:30LAX - LGW

Nonstop10h 25mNorse Atlantic UK

Sat 30/810:45LGW - LAX

Nonstop11h 15mNorse Atlantic UK

Deal found 16/4£332

Sun 11/516:30LAX - LGW

Nonstop10h 25mMultiple Airlines

Sun 25/507:40LGW - LAX

1 stop17h 50mMultiple Airlines

Deal found 15/4£401

Fri 19/917:05LAX - LHR

Nonstop10h 30mIberia

Fri 3/1014:45LHR - LAX

Nonstop11h 20mIberia

Deal found 15/4£429

Sun 11/516:30LAX - LGW

Nonstop10h 25mA.P.G.

Sun 25/510:55LGW - LAX

Nonstop11h 15mA.P.G.

Deal found 15/4£435

Thu 1/520:15LAX - LHR

1 stop14h 40mAer Lingus

Wed 7/509:50LHR - LAX

1 stop16h 35mAer Lingus

Deal found 16/4£444

Tue 23/916:40LAX - LHR

1 stop18h 10mTAP AIR PORTUGAL

Thu 9/1018:45LHR - LAX

1 stop27h 50mTAP AIR PORTUGAL

Deal found 16/4£445

Fri 16/522:50LAX - LHR

Nonstop10h 25mVirgin Atlantic

Fri 23/509:55LHR - LAX

Nonstop11h 20mVirgin Atlantic

Deal found 16/4£446

Sun 11/515:30LAX - LHR

Nonstop10h 30mAir France

Wed 21/509:00LHR - LAX

1 stop15h 05mAir France

Deal found 15/4£447

Sat 17/515:30LAX - LHR

Nonstop10h 30mDelta

Tue 10/606:15LHR - LAX

1 stop17h 50mDelta

Deal found 17/4£451

Tue 29/412:35LAX - LHR

1 stop13h 25mAir Canada

Wed 7/508:40LHR - LAX

2 stops19h 10mAir Canada

Deal found 15/4£454

Wed 7/508:00LAX - LGW

1 stop16h 10mBritish Airways

Mon 19/515:05LGW - LAX

1 stop26h 03mBritish Airways

Deal found 17/4£456

Sun 4/519:35LAX - LHR

1 stop14h 15mSWISS

Sat 17/508:45LHR - LAX

1 stop15h 45mSWISS

Deal found 15/4£459

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 17 April 2025.

Fri 8/816:30LAX - LGW

Nonstop10h 25mNorse Atlantic UK

Sat 30/810:45LGW - LAX

Nonstop11h 15mNorse Atlantic UK

Deal found 16/4£332

Fri 19/917:05LAX - LHR

Nonstop10h 30mIberia

Fri 3/1014:45LHR - LAX

Nonstop11h 20mIberia

Deal found 15/4£429

Sun 11/516:30LAX - LGW

Nonstop10h 25mA.P.G.

Sun 25/510:55LGW - LAX

Nonstop11h 15mA.P.G.

Deal found 15/4£435

Fri 16/522:50LAX - LHR

Nonstop10h 25mVirgin Atlantic

Fri 23/509:55LHR - LAX

Nonstop11h 20mVirgin Atlantic

Deal found 16/4£446

Mon 1/920:05LAX - LHR

Nonstop10h 30mBritish Airways

Wed 17/916:55LHR - LAX

Nonstop11h 20mBritish Airways

Deal found 17/4£448

Tue 23/915:45LAX - LHR

Nonstop10h 30mAir France

Tue 21/1017:30LHR - LAX

Nonstop11h 15mAir France

Deal found 16/4£456

Sat 17/515:30LAX - LHR

Nonstop10h 30mDelta

Wed 4/617:30LHR - LAX

Nonstop11h 15mDelta

Deal found 16/4£457

Tue 6/516:20SFO - LHR

Nonstop10h 35mAmerican Airlines

Tue 13/514:15LHR - SFO

Nonstop11h 00mAmerican Airlines

Deal found 16/4£469

Tue 29/419:30SFO - LHR

Nonstop10h 25mBritish Airways

Sun 4/510:45LHR - SFO

Nonstop11h 05mBritish Airways

Deal found 17/4£474

Wed 1/1016:30LAX - LGW

Nonstop10h 25mMultiple Airlines

Sun 12/1010:55LGW - LAX

Nonstop11h 15mMultiple Airlines

Deal found 16/4£475

Tue 6/521:20SFO - LHR

Nonstop10h 20mVirgin Atlantic

Wed 14/511:15LHR - SFO

Nonstop11h 00mVirgin Atlantic

Deal found 16/4£478

Mon 28/416:20SFO - LHR

Nonstop10h 35mIberia

Sat 10/510:45LHR - SFO

Nonstop11h 05mIberia

Deal found 15/4£482

Last-minute flights from California to London
Discover last-minute flight deals from California to London. Data last updated 17 April 2025 and is based on user searches.

Tue 22/414:50LAX - LHR

1 stop13h 55mAmerican Airlines

Tue 13/510:20LHR - LAX

1 stop14h 45mAmerican Airlines

Deal found 15/4£452

Tue 22/408:20SFO - LHR

1 stop17h 40mAir Canada

Wed 30/412:05LHR - SFO

1 stop17h 32mAir Canada

Deal found 15/4£473

Tue 22/408:20SFO - LHR

1 stop17h 40mMultiple Airlines

Wed 7/506:50LHR - SFO

2 stops21h 20mMultiple Airlines

Deal found 16/4£475

Wed 23/421:05SFO - LHR

1 stop15h 40mLufthansa

Thu 1/509:00LHR - SFO

1 stop18h 00mLufthansa

Deal found 15/4£475

Thu 24/420:15LAX - LHR

1 stop16h 05mAer Lingus

Wed 30/409:50LHR - LAX

1 stop16h 35mAer Lingus

Deal found 15/4£444

Thu 24/419:35LAX - LHR

1 stop18h 10mSWISS

Mon 28/408:40LHR - LAX

1 stop15h 50mSWISS

Deal found 15/4£459

Thu 24/419:35LAX - LHR

1 stop14h 15mMultiple Airlines

Wed 30/406:00LHR - LAX

1 stop15h 05mMultiple Airlines

Deal found 15/4£463

Thu 24/421:25LAX - LTN

1 stop27h 50mMultiple Airlines

Wed 21/519:00LTN - LAX

1 stop32h 05mMultiple Airlines

Deal found 17/4£466

Fri 25/419:45LAX - LGW

1 stop15h 45mMultiple Airlines

Fri 2/510:55LGW - LAX

Nonstop11h 15mMultiple Airlines

Deal found 16/4£445

Sun 27/421:25LAX - LHR

Nonstop10h 40mIberia

Tue 13/514:20LHR - LAX

Nonstop11h 15mIberia

Deal found 15/4£447

Sun 27/421:20LAX - LHR

Nonstop10h 20mDelta

Sun 11/506:15LHR - LAX

1 stop19h 55mDelta

Deal found 15/4£465

Sun 27/419:30SFO - LGW

1 stop14h 20mSWISS

Tue 13/518:35LGW - SFO

1 stop29h 35mSWISS

Deal found 15/4£472

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 17 April 2025.

Sat 19/716:30LAX - LGW

Nonstop10h 25mNorse Atlantic UK

Deal found 16/4£128

Sat 19/716:40LAX - LGW

1 stop33h 05mTAP AIR PORTUGAL

Deal found 16/4£206

Tue 29/710:03ONT - LHR

2 stops17h 52mMultiple Airlines

Deal found 16/4£210

Sun 12/1021:25LAX - LHR

1 stop16h 25mMultiple Airlines

Deal found 17/4£214

Mon 28/419:45LAX - LTN

2 stops22h 10mMultiple Airlines

Deal found 16/4£214

Sat 12/705:25LAX - LGW

1 stop16h 55mMultiple Airlines

Deal found 16/4£214

Tue 15/716:40LAX - LHR

1 stop17h 05mTAP AIR PORTUGAL

Deal found 16/4£217

Tue 22/706:00SFO - LHR

2 stops27h 45mMultiple Airlines

Deal found 16/4£228

Mon 21/710:45LAS - LHR

2 stops27h 05mMultiple Airlines

Deal found 16/4£229

Mon 16/618:05LAX - LGW

3 stops31h 20mWestJet

Deal found 17/4£230

Wed 17/916:30LAX - LGW

Nonstop10h 25mA.P.G.

Deal found 16/4£248

Wed 23/707:00LAX - LCY

3 stops21h 10mMultiple Airlines

Deal found 16/4£257

Cheapflights Fare Finder

Use the filters below to find and compare flights from California to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Fri 8/8

16:30-10:55

Nonstop10h 25m

London Gatwick

Sat 30/8

10:45-14:00

Nonstop11h 15m

£332

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 11/5

16:30-10:55

Nonstop10h 25m

London Gatwick

Sun 25/5

07:40-17:30

1 stop17h 50m

£401

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 19/9

17:05-11:35

Nonstop10h 30m

London Heathrow

Fri 3/10

14:45-18:05

Nonstop11h 20m

£429

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 11/5

16:30-10:55

Nonstop10h 25m

London Gatwick

Sun 25/5

10:55-14:10

Nonstop11h 15m

£435

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 1/5

20:15-18:55

1 stop14h 40m

London Heathrow

Wed 7/5

09:50-18:25

1 stop16h 35m

£444

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 23/9

16:40-18:50

1 stop18h 10m

London Heathrow

Thu 9/10

18:45-14:35

1 stop27h 50m

£445

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 16/5

22:50-17:15

Nonstop10h 25m

London Heathrow

Fri 23/5

09:55-13:15

Nonstop11h 20m

£446

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 11/5

15:30-10:00

Nonstop10h 30m

London Heathrow

Wed 21/5

09:00-16:05

1 stop15h 05m

£447

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

Wed 30/4

21:25-22:35

1 stop17h 10m

London Luton

Sat 10/5

06:05-19:05

1 stop21h 00m

£447

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 17/5

15:30-10:00

Nonstop10h 30m

London Heathrow

Tue 10/6

06:15-16:05

1 stop17h 50m

£451

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 60 results

...

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.

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

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

Currently, January is the cheapest month in which you can book a flight from California to London (average of £112). Flying from California to London in August is currently the most expensive (average of £164). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to London as you normally would.

Weekly flight availability from California to London

The most flights from USCA to LON are scheduled on a Monday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Rainfall in London by month

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.

Temperature in London by month

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).

Reviews of airlines servicing London

See what other customers who have flown with Delta, Porter Airlines and KLM from California to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,916 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

8.0

Very Good

281 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,329 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,580 reviews

Delta

8.0

Very Good

7,916 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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 £128 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £206 and WestJet 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 City.
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: Air Canada (83%), Austrian Airlines (83%), United Airlines( 83%).
What are the cheapest flights from California to London?
Looking for the cheapest flight from California to London? While on average our users pay £2,217, our data indicates the cheapest price to be £322. The most popular route (Los Angeles - London Heathrow), is priced around £340.
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, January is the cheapest month in which you can book a flight from California to London (average of £112). Flying from California to London in August is currently the most expensive (average of £164). 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

Deal

Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Wembley

Hayes

Crawley

Southend-on-Sea

Maidstone

Ipswich

Southall

Ilford

Winchester

Folkestone

Dartford

Watford

Browse thousands of different options on Cheapflights for your next trip

California to London flights

Top 10 airlines flying from California to London

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest£308	Average£452	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Norse Atlantic UK	Cheapest£363	Average£554	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Finnair	Cheapest£369	Average£652	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Air France	Cheapest£385	Average£530	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£388	Average£537	FlexibilityNo cancel fee	On-time75%	Search KLM flights
TAP AIR PORTUGAL	Cheapest£396	Average£412	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Lufthansa	Cheapest£423	Average£697	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£427	Average£613	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Iberia	Cheapest£433	Average£549	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£436	Average£660	FlexibilityNo cancel fee	On-time70%	Search British Airways 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.

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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 £128

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 17 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 17 April 2025.

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 17 April 2025.

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

Everything you need to know about your flight from California to London

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 17 April 2025.

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 17 April 2025.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 17 April 2025.

See what other customers who have flown with Delta, Porter Airlines and KLM from California to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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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 17 April 2025.