How long is the flight from London Heathrow Airport to California?

For as low as £394, United Airlines can have you in California from London Heathrow Airport in 15h 20m. London Heathrow Airport and California are separated by a distance of 5407 mi. This flight may include one or multiple stops.

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

One-way options have recently been found by users for as low as £164 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £245 and Scandinavian Airlines from £250 one-way.

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 Heathrow Airport to California?

When deciding which route to take from London Heathrow Airport to California consider London Heathrow - Los Angeles, London Heathrow - Las Vegas Harry Reid Intl or London Heathrow - San Francisco as they are the most popular.

What are the cheapest flights from London Heathrow Airport to California?

Looking for the cheapest flight from London Heathrow Airport to California? While on average our users pay £2,706, our data indicates the cheapest price to be £368. The most popular route (London Heathrow - Los Angeles), is priced around £296.

What are the most reliable airlines from London Heathrow Airport to California?

Before booking your flight to California from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (94%), Air Canada (92%), Austrian Airlines( 92%).

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

Virgin Atlantic, British Airways and Lufthansa are the most popular airlines when flying from London Heathrow Airport to California.

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

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

How can I find direct flights from Heathrow to California?

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

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

Yes. Cheapflights offers flight deals from Heathrow 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.

£307+ Flights from London Heathrow Airport to California

Cheap flight deals from Heathrow to California

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to California
Explore the most affordable flight options available from Heathrow to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Sat 27/1210:45LHR - BUR

1 stop19h 07mDelta

Mon 29/1213:02BUR - LHR

1 stop12h 58mDelta

Deal found 17/12£408

Sat 27/1210:45LHR - SNA

1 stop15h 20mDelta

Mon 29/1213:10SNA - LHR

1 stop12h 50mDelta

Deal found 17/12£418

Thu 25/1211:55LHR - ONT

1 stop18h 19mIberia

Mon 12/110:58ONT - LHR

1 stop35h 52mIberia

Deal found 17/12£437

Fri 26/1214:45LHR - LAX

1 stop17h 54mBritish Airways

Mon 12/111:05LAX - LHR

1 stop14h 10mBritish Airways

Deal found 17/12£444

Fri 26/1214:10LHR - LAX

1 stop16h 17mMultiple Airlines

Sun 11/118:00LAX - LHR

1 stop28h 55mMultiple Airlines

Deal found 17/12£445

Thu 25/1216:55LHR - LAX

Nonstop11h 30mBritish Airways

Mon 12/123:50LAX - LHR

1 stop14h 20mBritish Airways

Deal found 17/12£446

Fri 26/1214:10LHR - LAX

1 stop16h 17mAmerican Airlines

Thu 8/115:15LAX - LHR

1 stop14h 45mAmerican Airlines

Deal found 17/12£446

Fri 26/1216:55LHR - LAX

Nonstop11h 30mAmerican Airlines

Tue 6/109:39LAX - LHR

1 stop20h 21mAmerican Airlines

Deal found 17/12£450

Sat 27/1216:55LHR - LAX

Nonstop11h 30mBritish Airways

Mon 12/117:30LAX - LHR

Nonstop10h 35mBritish Airways

Deal found 17/12£458

Wed 24/1216:55LHR - LAX

Nonstop11h 30mBritish Airways

Wed 31/1219:15LAX - LHR

Nonstop10h 45mBritish Airways

Deal found 17/12£461

Tue 23/1210:45LHR - LAX

1 stop37h 50mIberia

Mon 23/221:00LAX - LHR

Nonstop10h 30mIberia

Deal found 16/12£462

Wed 24/1216:30LHR - LAX

1 stop24h 17mMultiple Airlines

Thu 8/121:00LAX - LHR

Nonstop10h 30mMultiple Airlines

Deal found 17/12£468

Best flights from Heathrow to California
Discover carefully curated flight deals from Heathrow to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 December 2025.

Thu 22/106:35LHR - SNA

2 stops19h 54mUnited Airlines

Mon 26/116:06SNA - LHR

1 stop33h 34mUnited Airlines

Deal found 17/12£381

Mon 12/108:55LHR - ONT

1 stop20h 10mDelta

Mon 26/112:41ONT - LHR

1 stop14h 59mDelta

Deal found 17/12£383

Wed 15/410:55LHR - ONT

1 stop15h 20mKLM

Wed 22/413:00ONT - LHR

1 stop12h 50mKLM

Deal found 18/12£394

Mon 12/111:35LHR - SNA

1 stop13h 53mLufthansa

Mon 26/111:05SNA - LHR

1 stop14h 35mLufthansa

Deal found 18/12£405

Sun 1/210:45LHR - BUR

1 stop19h 13mVirgin Atlantic

Sun 8/213:30BUR - LHR

1 stop14h 10mVirgin Atlantic

Deal found 17/12£443

Sat 21/212:35LHR - SNA

1 stop16h 57mBritish Airways

Mon 23/208:17SNA - LHR

1 stop17h 43mBritish Airways

Deal found 16/12£449

Thu 15/110:05LHR - BUR

1 stop19h 04mMultiple Airlines

Wed 28/107:00BUR - LHR

1 stop15h 50mMultiple Airlines

Deal found 16/12£455

Wed 28/117:30LHR - LAX

2 stops31h 30mScandinavian Airlines

Sat 14/219:30LAX - LHR

1 stop14h 10mScandinavian Airlines

Deal found 16/12£459

Thu 11/610:20LHR - LAX

1 stop14h 50mFinnair

Mon 22/618:50LAX - LHR

1 stop17h 50mFinnair

Deal found 17/12£467

Fri 16/108:05LHR - LAX

1 stop23h 45mJetBlue

Mon 19/106:15LAX - LHR

1 stop19h 15mJetBlue

Deal found 16/12£472

Thu 23/410:45LHR - SFO

Nonstop11h 05mIberia

Mon 27/408:14SFO - LHR

1 stop15h 51mIberia

Deal found 17/12£476

Tue 3/207:00LHR - LAX

2 stops17h 35mSWISS

Thu 26/211:35LAX - LHR

2 stops20h 45mSWISS

Deal found 16/12£492

Sat 17/120:35LHR - OAK

2 stops32h 05mIcelandair

Tue 3/208:10OAK - LHR

2 stops27h 20mIcelandair

Deal found 17/12£681

Thu 22/107:30LHR - ONT

2 stops22h 28mUnited Airlines

Mon 26/106:00ONT - LHR

1 stop17h 25mUnited Airlines

Deal found 17/12£382

Sun 1/217:35LHR - BUR

2 stops30h 33mDelta

Sun 8/213:30BUR - LHR

1 stop14h 10mDelta

Deal found 17/12£414

Mon 26/110:05LHR - ONT

1 stop15h 38mUnited Airlines

Wed 4/213:53ONT - LHR

1 stop14h 07mUnited Airlines

Deal found 17/12£405

Fri 6/319:30LHR - LAX

1 stop29h 30mScandinavian Airlines

Thu 19/320:30LAX - LHR

2 stops17h 50mScandinavian Airlines

Deal found 16/12£459

Thu 23/411:10LHR - SNA

1 stop16h 06mBritish Airways

Wed 6/514:55SNA - LHR

1 stop13h 15mBritish Airways

Deal found 16/12£460

Fri 20/315:50LHR - SNA

1 stop34h 52mVirgin Atlantic

Fri 10/413:20SNA - LHR

1 stop15h 50mVirgin Atlantic

Deal found 16/12£468

Sat 31/110:05LHR - BUR

2 stops19h 04mMultiple Airlines

Sat 7/213:14BUR - LHR

1 stop15h 01mMultiple Airlines

Deal found 17/12£479

Mon 26/110:05LHR - ONT

1 stop15h 38mUnited Airlines

Fri 6/213:53ONT - LHR

1 stop14h 07mUnited Airlines

Deal found 17/12£405

Mon 19/110:05LHR - SFO

Nonstop11h 15mLufthansa

Mon 2/212:50SFO - LHR

Nonstop10h 35mLufthansa

Deal found 16/12£493

Wed 4/316:05LHR - LAS

Nonstop10h 45mFinnair

Sat 7/312:20LAS - LHR

1 stop34h 00mFinnair

Deal found 17/12£509

Mon 2/221:05LHR - LAX

2 stops27h 55mScandinavian Airlines

Mon 16/219:30LAX - LHR

1 stop18h 10mScandinavian Airlines

Deal found 15/12£469

Sun 1/206:15LHR - SJC

2 stops23h 14mBritish Airways

Sun 8/212:50SJC - LHR

1 stop16h 25mBritish Airways

Deal found 17/12£475

Mon 19/119:30LHR - SFO

2 stops53h 00mSWISS

Mon 2/219:25SFO - LHR

2 stops18h 00mSWISS

Deal found 16/12£523

Sat 6/610:55LHR - LGB

1 stop13h 26mVirgin Atlantic

Tue 16/612:59LGB - LHR

1 stop12h 51mVirgin Atlantic

Deal found 17/12£479

Sat 27/1211:50LHR - SFO

1 stop15h 46mMultiple Airlines

Mon 29/1216:11SFO - LHR

1 stop15h 19mMultiple Airlines

Deal found 17/12£488

Sat 14/210:05LHR - ONT

1 stop15h 36mUnited Airlines

Sun 22/213:50ONT - LHR

1 stop14h 10mUnited Airlines

Deal found 18/12£405

Fri 27/312:20LHR - ONT

1 stop35h 53mDelta

Sun 12/417:53ONT - LHR

1 stop36h 22mDelta

Deal found 18/12£496

Direct flights from Heathrow to California
Explore direct flight options from Heathrow to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 December 2025.

Fri 6/311:50LHR - LAX

Nonstop11h 30mMultiple Airlines

Sun 15/319:00LAX - LHR

Nonstop10h 30mMultiple Airlines

Deal found 15/12£442

Thu 29/112:30LHR - LAX

Nonstop11h 20mBritish Airways

Wed 18/215:30LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 17/12£443

Tue 17/316:55LHR - LAX

Nonstop11h 30mBritish Airways

Tue 7/420:55LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 16/12£443

Fri 16/111:50LHR - LAX

Nonstop11h 30mBritish Airways

Fri 23/117:30LAX - LHR

Nonstop10h 35mBritish Airways

Deal found 17/12£445

Mon 2/215:10LHR - LAX

Nonstop11h 20mBritish Airways

Sun 15/215:30LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 17/12£446

Sat 31/116:55LHR - LAX

Nonstop11h 30mIberia

Sat 7/219:25LAX - LHR

Nonstop10h 35mIberia

Deal found 17/12£447

Sat 23/516:55LHR - LAX

Nonstop11h 20mBritish Airways

Sat 30/514:05LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 17/12£448

Sat 30/510:30LHR - LAX

Nonstop11h 15mIberia

Mon 8/613:30LAX - LHR

Nonstop10h 30mIberia

Deal found 16/12£449

Fri 10/411:40LHR - LAX

Nonstop11h 15mBritish Airways

Fri 17/416:25LAX - LHR

Nonstop10h 40mBritish Airways

Deal found 16/12£449

Tue 13/111:50LHR - LAX

Nonstop11h 30mMultiple Airlines

Sun 1/217:30LAX - LHR

Nonstop10h 35mMultiple Airlines

Deal found 16/12£450

Thu 9/415:10LHR - LAX

Nonstop11h 15mBritish Airways

Sun 19/415:45LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 17/12£451

Tue 13/116:05LHR - LAS

Nonstop10h 45mFinnair

Tue 20/120:55LAS - LHR

Nonstop9h 55mFinnair

Deal found 17/12£473

Last-minute flights from Heathrow to California
Discover last-minute flight deals from Heathrow to California. Data last updated 18 December 2025 and is based on user searches.

Thu 25/1211:55LHR - ONT

1 stop18h 19mIberia

Mon 12/110:58ONT - LHR

1 stop35h 52mIberia

Deal found 17/12£437

Sat 27/1210:45LHR - BUR

1 stop19h 07mDelta

Mon 29/1213:02BUR - LHR

1 stop12h 58mDelta

Deal found 17/12£408

Sat 27/1210:45LHR - SNA

1 stop15h 20mDelta

Mon 29/1213:10SNA - LHR

1 stop12h 50mDelta

Deal found 17/12£418

Mon 12/108:55LHR - ONT

1 stop20h 10mDelta

Mon 26/112:41ONT - LHR

1 stop14h 59mDelta

Deal found 17/12£383

Mon 12/111:35LHR - SNA

1 stop13h 53mLufthansa

Mon 26/111:05SNA - LHR

1 stop14h 35mLufthansa

Deal found 18/12£405

Mon 12/110:05LHR - ONT

1 stop15h 38mLufthansa

Mon 26/113:24ONT - LHR

1 stop12h 16mLufthansa

Deal found 18/12£430

Mon 19/110:05LHR - ONT

1 stop16h 40mBritish Airways

Mon 2/216:45ONT - LHR

1 stop12h 30mBritish Airways

Deal found 16/12£416

Mon 19/110:05LHR - ONT

1 stop15h 17mAmerican Airlines

Mon 2/216:45ONT - LHR

1 stop12h 30mAmerican Airlines

Deal found 17/12£419

Thu 22/106:35LHR - SNA

2 stops19h 54mUnited Airlines

Mon 26/116:06SNA - LHR

1 stop33h 34mUnited Airlines

Deal found 17/12£381

Thu 22/107:30LHR - ONT

2 stops22h 28mUnited Airlines

Mon 26/106:00ONT - LHR

2 stops17h 55mUnited Airlines

Deal found 17/12£382

Mon 26/110:05LHR - ONT

1 stop15h 38mUnited Airlines

Wed 4/213:53ONT - LHR

1 stop14h 07mUnited Airlines

Deal found 17/12£405

Sat 31/106:15LHR - ONT

2 stops24h 33mBritish Airways

Sat 7/210:58ONT - LHR

1 stop15h 02mBritish Airways

Deal found 17/12£440

One-way flights from Heathrow to California
Search for one-way flight options from Heathrow to California. Find affordable one-way fares based on user searches. Data last updated 18 December 2025.

Wed 25/206:15LHR - ONT

2 stops24h 34mBritish Airways

Deal found 17/12£307

Tue 3/207:40LHR - SJC

2 stops21h 16mLufthansa

Deal found 16/12£313

Tue 10/210:35LHR - ONT

1 stop16h 10mBritish Airways

Deal found 16/12£313

Sun 15/218:10LHR - SJC

2 stops35h 19mFinnair

Deal found 17/12£316

Tue 27/109:30LHR - ONT

2 stops21h 23mUnited Airlines

Deal found 17/12£322

Mon 9/207:30LHR - ONT

2 stops21h 28mUnited Airlines

Deal found 17/12£323

Tue 10/210:45LHR - SNA

1 stop15h 40mVirgin Atlantic

Deal found 16/12£323

Tue 24/210:45LHR - LGB

1 stop19h 00mVirgin Atlantic

Deal found 16/12£323

Tue 24/211:45LHR - ONT

1 stop16h 12mBritish Airways

Deal found 17/12£324

Mon 9/210:45LHR - SNA

1 stop17h 19mVirgin Atlantic

Deal found 17/12£324

Tue 5/506:00LHR - SNA

2 stops38h 20mAir Canada

Deal found 16/12£325

Mon 26/106:30LHR - ONT

2 stops23h 28mUnited Airlines

Deal found 16/12£326

Find flight deals from Heathrow to California

Round-trip from	£382
One-way from	£307
Popular in	December
Cheapest in	September
Average price	£591
Good round-trip deal	£468 or less
Good one-way deal	£414 or less

United Airlines
22/1-26/1
3 total stops
39h 53m total
London to California

Search Deals

British Airways
25/2
2 total stops
24h 34m total
London to California

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to California.

Search Deals

Price to beat on a one-way flight from London Heathrow to California.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Thu 22/1

06:35-18:29

2 stops19h 54m

Santa Ana J. Wayne/Orange Cnty

Mon 26/1

16:06-09:40

1 stop33h 34m

£381

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 22/1

07:30-21:58

2 stops22h 28m

Ontario

Mon 26/1

06:00-07:25

1 stop17h 25m

£382

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 12/1

08:55-21:05

1 stop20h 10m

Ontario

Mon 26/1

12:41-11:40

1 stop14h 59m

£383

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 15/4

10:55-18:15

1 stop15h 20m

Ontario

Wed 22/4

13:00-09:50

1 stop12h 50m

£394

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 26/1

10:05-17:43

1 stop15h 38m

Ontario

Wed 4/2

13:53-12:00

1 stop14h 07m

£405

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 26/1

10:05-17:43

1 stop15h 38m

Ontario

Fri 6/2

13:53-12:00

1 stop14h 07m

£405

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 14/2

10:05-17:41

1 stop15h 36m

Ontario

Sun 22/2

13:50-12:00

1 stop14h 10m

£405

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Mon 12/1

11:35-17:28

1 stop13h 53m

Santa Ana J. Wayne/Orange Cnty

Mon 26/1

11:05-09:40

1 stop14h 35m

£405

LondonBurbank

LHR - BUR

LHRBUR

London Heathrow

Sun 1/2

17:35-16:08

2 stops30h 33m

Burbank Bob Hope

Sun 8/2

13:30-11:40

1 stop14h 10m

£414

LondonBurbank

LHR - BUR

LHRBUR

London Heathrow

Sun 1/2

10:45-21:58

1 stop19h 13m

Burbank Bob Hope

Sun 8/2

13:30-11:40

1 stop14h 10m

£443

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 60 results

...

Best time to book a flight from Heathrow to California

Have a flexible travel schedule? Discover the best time to fly to California from Heathrow 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 London Heathrow Airport to California

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

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to California (average of £339). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £403). 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 LHR to CA?

When flying from London Heathrow Airport to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight at midday.

What is the cheapest day to fly from London Heathrow Airport to California?

Travellers seeking maximum savings on their London Heathrow Airport to California flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to California

The most flights from LHR to USCA are scheduled on a Monday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing California

Get a feel of what it's like to fly with KLM, Virgin Atlantic, andUnited Airlines from London Heathrow Airport to California by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,430 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Virgin Atlantic

7.5

Good

675 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

United Airlines

7.4

Good

9,091 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Lufthansa

6.8

Okay

7,634 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

British Airways

6.7

Okay

7,585 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from London Heathrow Airport to California?
For as low as £394, United Airlines can have you in California from London Heathrow Airport in 15h 20m. London Heathrow Airport and California are separated by a distance of 5407 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from London Heathrow Airport to California one-way?
One-way options have recently been found by users for as low as £164 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £245 and Scandinavian Airlines from £250 one-way.
What are the most popular routes from London Heathrow Airport to California?
When deciding which route to take from London Heathrow Airport to California consider London Heathrow - Los Angeles, London Heathrow - Las Vegas Harry Reid Intl or London Heathrow - San Francisco as they are the most popular.
What are the most reliable airlines from London Heathrow Airport to California?
Before booking your flight to California from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (94%), Air Canada (92%), Austrian Airlines( 92%).
What are the cheapest flights from London Heathrow Airport to California?
Looking for the cheapest flight from London Heathrow Airport to California? While on average our users pay £2,706, our data indicates the cheapest price to be £368. The most popular route (London Heathrow - Los Angeles), is priced around £296.
Can I find deals for flights from Heathrow to California that include hotel bookings?
Yes. In addition to deals on Heathrow to California flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to California?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to California.
Can I find deals for business class flights from Heathrow to California?
Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to California?
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to California (average of £339). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £403). 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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Top 10 airlines flying from Heathrow to California

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£238	Average£549	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Finnair	Cheapest£280	Average£534	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
SWISS	Cheapest£293	Average£400	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Norse Atlantic UK	Cheapest£311	Average£573	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Aer Lingus	Cheapest£335	Average£909	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air Canada	Cheapest£337	Average£505	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Scandinavian Airlines	Cheapest£339	Average£497	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
United Airlines	Cheapest£339	Average£543	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£340	Average£520	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Brussels Airlines	Cheapest£359	Average£483	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights

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

Cheapflights helps you search for flights from Heathrow to California via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to California, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to California from Heathrow today and book when prices fit your budget.

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Cheap flights from London Heathrow Airport to California from £307

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to California

Cheapest flights from Heathrow to CaliforniaExplore the most affordable flight options available from Heathrow to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Explore the most affordable flight options available from Heathrow to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Find flight deals from Heathrow to California

Keep the following information in mind while searching for Heathrow to California flight deals. Data was last updated 18 December 2025.

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Average price

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Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to California

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Heathrow 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 18 December 2025.

What is the cheapest day to fly from London Heathrow Airport to California?

Use this chart to determine the cheapest time to fly return from Heathrow to California. Price data was last updated on 16 December 2024.

Weekly flight availability from London Heathrow Airport to California

Reviews of airlines servicing California

Get a feel of what it's like to fly with KLM, Virgin Atlantic, andUnited Airlines from London Heathrow Airport to California by reading reviews from past customers. 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

Find useful and relevant information for your journey from Heathrow to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from London Heathrow Airport to California?

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

What are the most popular routes from London Heathrow Airport to California?

What are the most reliable airlines from London Heathrow Airport to California?

What are the cheapest flights from London Heathrow Airport to California?

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

How can I find direct flights from Heathrow to California?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to California

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

Top 10 airlines flying from Heathrow to California

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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Cheapest flights from Heathrow to California
Explore the most affordable flight options available from Heathrow to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.