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

For as low as £450, TAP AIR PORTUGAL can have you in California from London Heathrow Airport in 17h. London Heathrow Airport and California are separated by a distance of 5439 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 £165 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £246 and Scandinavian Airlines from £251 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 £2,651, our data indicates the cheapest price to be £368. The most popular route (London Heathrow - Los Angeles), is priced around £330.

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 (89%), Air Canada (85%), Austrian Airlines( 85%).

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.

£314+ 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 9 December 2025.

Mon 15/1218:30LHR - LAX

1 stop28h 30mTAP AIR PORTUGAL

Tue 20/116:45LAX - LHR

1 stop20h 50mTAP AIR PORTUGAL

Deal found 8/12£445

Tue 9/1206:00LHR - LAX

1 stop17h 00mTAP AIR PORTUGAL

Thu 22/116:45LAX - LHR

1 stop21h 55mTAP AIR PORTUGAL

Deal found 7/12£454

Thu 25/1206:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 12/216:45LAX - LHR

1 stop20h 50mTAP AIR PORTUGAL

Deal found 8/12£455

Tue 16/1206:00LHR - LAX

1 stop17h 00mTAP AIR PORTUGAL

Tue 20/116:45LAX - LHR

1 stop16h 45mTAP AIR PORTUGAL

Deal found 8/12£458

Mon 15/1218:30LHR - LAX

1 stop28h 30mTAP AIR PORTUGAL

Tue 27/116:45LAX - LHR

1 stop16h 45mTAP AIR PORTUGAL

Deal found 6/12£470

Fri 26/1206:00LHR - SFO

1 stop18h 05mTAP AIR PORTUGAL

Fri 16/119:10SFO - LHR

1 stop15h 45mTAP AIR PORTUGAL

Deal found 8/12£471

Thu 25/1218:30LHR - SFO

1 stop29h 35mTAP AIR PORTUGAL

Sat 10/116:35SFO - LHR

1 stop21h 00mTAP AIR PORTUGAL

Deal found 8/12£473

Tue 9/1206:00LHR - LAX

1 stop17h 00mTAP AIR PORTUGAL

Thu 19/218:55LAX - LHR

1 stop16h 00mTAP AIR PORTUGAL

Deal found 7/12£473

Tue 23/1218:40LHR - SFO

1 stop29h 50mSWISS

Mon 19/119:25SFO - LHR

1 stop15h 50mSWISS

Deal found 8/12£476

Thu 11/1208:20LHR - SFO

1 stop17h 00mAmerican Airlines

Thu 18/1210:22SFO - LHR

1 stop17h 58mAmerican Airlines

Deal found 8/12£478

Thu 25/1219:55LHR - SFO

1 stop28h 10mTAP AIR PORTUGAL

Mon 12/116:35SFO - LHR

1 stop16h 55mTAP AIR PORTUGAL

Deal found 8/12£481

Tue 16/1214:45LHR - ONT

1 stop16h 02mVirgin Atlantic

Thu 8/112:41ONT - LHR

1 stop33h 44mVirgin Atlantic

Deal found 7/12£485

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 9 December 2025.

Sat 14/306:00LHR - LAX

1 stop17h 00mTAP AIR PORTUGAL

Sat 11/416:40LAX - LHR

1 stop33h 40mTAP AIR PORTUGAL

Deal found 8/12£450

Tue 13/119:50LHR - LAX

2 stops29h 10mScandinavian Airlines

Sun 18/119:30LAX - LHR

2 stops17h 50mScandinavian Airlines

Deal found 7/12£455

Mon 9/209:00LHR - LAX

1 stop15h 35mUnited Airlines

Thu 19/205:05LAX - LHR

1 stop20h 35mUnited Airlines

Deal found 7/12£467

Wed 25/210:45LHR - OAK

1 stop21h 06mVirgin Atlantic

Fri 6/305:55OAK - LHR

1 stop20h 05mVirgin Atlantic

Deal found 7/12£471

Mon 12/118:40LHR - SFO

1 stop29h 50mSWISS

Mon 26/111:45SFO - LHR

2 stops20h 35mSWISS

Deal found 8/12£482

Fri 13/216:15LHR - SJC

2 stops37h 14mAmerican Airlines

Sun 22/206:00SJC - LHR

2 stops20h 10mAmerican Airlines

Deal found 7/12£486

Tue 17/209:50LHR - SFO

1 stop13h 45mAer Lingus

Sun 22/218:20SFO - LHR

1 stop13h 15mAer Lingus

Deal found 8/12£488

Wed 25/206:20LHR - OAK

2 stops17h 52mDelta

Mon 30/305:55OAK - LHR

2 stops23h 35mDelta

Deal found 9/12£493

Mon 12/113:25LHR - SNA

2 stops54h 00mAir Canada

Mon 2/212:25SNA - LHR

1 stop15h 25mAir Canada

Deal found 8/12£497

Mon 12/110:05LHR - SJC

1 stop19h 24mMultiple Airlines

Mon 26/114:32SJC - LHR

1 stop13h 43mMultiple Airlines

Deal found 8/12£498

Tue 13/112:35LHR - SNA

1 stop17h 26mBritish Airways

Tue 27/109:30SNA - LHR

1 stop13h 20mBritish Airways

Deal found 7/12£499

Sun 1/216:05LHR - LAS

Nonstop10h 45mFinnair

Sat 14/212:20LAS - LHR

1 stop13h 20mFinnair

Deal found 7/12£503

Thu 19/312:10LHR - ONT

1 stop15h 54mKLM

Tue 24/312:45ONT - LHR

1 stop13h 15mKLM

Deal found 6/12£506

Thu 12/321:05LHR - LAX

2 stops27h 55mScandinavian Airlines

Mon 16/320:30LAX - LHR

2 stops18h 05mScandinavian Airlines

Deal found 8/12£455

Mon 2/209:00LHR - LAX

1 stop15h 35mUnited Airlines

Wed 18/219:00LAX - LHR

Nonstop10h 30mUnited Airlines

Deal found 8/12£467

Sat 14/206:00LHR - LAX

1 stop17h 00mTAP AIR PORTUGAL

Sat 21/216:45LAX - LHR

1 stop20h 50mTAP AIR PORTUGAL

Deal found 7/12£470

Sat 4/410:55LHR - LGB

1 stop18h 52mVirgin Atlantic

Sat 11/407:00LGB - LHR

1 stop18h 50mVirgin Atlantic

Deal found 7/12£477

Tue 20/114:25LHR - SFO

2 stops34h 05mSWISS

Wed 28/111:45SFO - LHR

2 stops20h 35mSWISS

Deal found 8/12£491

Sat 28/306:30LHR - ONT

2 stops21h 34mDelta

Sat 11/413:20ONT - LHR

2 stops15h 50mDelta

Deal found 8/12£493

Mon 2/219:30LHR - LAX

1 stop29h 30mScandinavian Airlines

Mon 16/219:30LAX - LHR

1 stop14h 10mScandinavian Airlines

Deal found 8/12£457

Sat 21/315:05LHR - ONT

1 stop14h 29mKLM

Mon 13/413:00ONT - LHR

1 stop12h 50mKLM

Deal found 7/12£512

Tue 20/109:00LHR - LAX

1 stop15h 35mUnited Airlines

Tue 27/119:00LAX - LHR

Nonstop10h 30mUnited Airlines

Deal found 6/12£467

Fri 8/517:15LHR - LAS

Nonstop10h 45mBritish Airways

Sun 17/508:26LAS - LHR

1 stop16h 39mBritish Airways

Deal found 8/12£522

Sat 10/110:45LHR - LGB

1 stop19h 00mVirgin Atlantic

Wed 14/113:05LGB - LHR

1 stop12h 55mVirgin Atlantic

Deal found 7/12£478

Tue 31/306:30LHR - SNA

2 stops19h 53mDelta

Tue 14/406:45SNA - LHR

2 stops19h 30mDelta

Deal found 7/12£493

Fri 20/206:00LHR - SFO

1 stop18h 30mSWISS

Tue 24/219:25SFO - LHR

1 stop14h 25mSWISS

Deal found 8/12£496

Wed 13/510:05LHR - LAS

1 stop15h 27mFinnair

Sat 16/509:20LAS - LHR

1 stop28h 20mFinnair

Deal found 8/12£552

Sun 8/306:40LHR - LAX

2 stops18h 20mScandinavian Airlines

Mon 23/320:30LAX - LHR

1 stop14h 10mScandinavian Airlines

Deal found 6/12£459

Mon 26/112:50LHR - SAN

Nonstop11h 20mMultiple Airlines

Mon 9/218:00SAN - LHR

Nonstop10h 35mMultiple Airlines

Deal found 7/12£557

Mon 6/411:20LHR - ONT

1 stop13h 53mKLM

Mon 20/413:00ONT - LHR

1 stop12h 50mKLM

Deal found 8/12£517

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 9 December 2025.

Mon 12/110:05LHR - LAX

Nonstop11h 25mBritish Airways

Thu 9/720:55LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 7/12£445

Mon 12/115:20LHR - LAX

Nonstop11h 25mLufthansa

Mon 26/119:00LAX - LHR

Nonstop10h 30mLufthansa

Deal found 7/12£455

Sat 10/112:30LHR - LAX

Nonstop11h 20mBritish Airways

Wed 4/221:00LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 8/12£460

Wed 14/112:30LHR - LAS

Nonstop10h 45mBritish Airways

Sat 7/220:55LAS - LHR

Nonstop9h 55mBritish Airways

Deal found 7/12£469

Wed 18/217:20LHR - LAX

Nonstop11h 20mVirgin Atlantic

Wed 25/216:35LAX - LHR

Nonstop10h 20mVirgin Atlantic

Deal found 6/12£472

Mon 9/313:45LHR - SFO

Nonstop11h 15mLufthansa

Mon 23/318:25SFO - LHR

Nonstop10h 35mLufthansa

Deal found 8/12£473

Mon 20/417:20LHR - LAX

Nonstop11h 15mVirgin Atlantic

Wed 29/422:35LAX - LHR

Nonstop10h 25mVirgin Atlantic

Deal found 7/12£473

Mon 19/115:20LHR - LAX

Nonstop11h 25mLufthansa

Mon 26/119:00LAX - LHR

Nonstop10h 30mLufthansa

Deal found 8/12£474

Sun 1/316:35LHR - LAS

Nonstop10h 40mVirgin Atlantic

Sun 8/322:05LAS - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 8/12£474

Mon 2/315:25LHR - SFO

Nonstop11h 20mBritish Airways

Tue 10/318:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 8/12£475

Fri 10/416:55LHR - LAX

Nonstop11h 20mBritish Airways

Fri 17/413:30LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 6/12£475

Fri 10/416:55LHR - LAX

Nonstop11h 20mIberia

Fri 17/416:25LAX - LHR

Nonstop10h 40mIberia

Deal found 8/12£476

Last-minute flights from Heathrow to California
Discover last-minute flight deals from Heathrow to California. Data last updated 9 December 2025 and is based on user searches.

Mon 12/113:45LHR - ONT

1 stop17h 08mUnited Airlines

Mon 2/213:53ONT - LHR

1 stop14h 07mUnited Airlines

Deal found 8/12£374

Tue 13/119:50LHR - LAX

2 stops29h 10mScandinavian Airlines

Tue 27/119:30LAX - LHR

1 stop15h 00mScandinavian Airlines

Deal found 7/12£449

Wed 14/110:20LHR - LAX

1 stop14h 40mScandinavian Airlines

Tue 3/219:30LAX - LHR

1 stop15h 00mScandinavian Airlines

Deal found 8/12£444

Wed 14/110:20LHR - LAX

1 stop14h 40mScandinavian Airlines

Wed 4/219:30LAX - LHR

1 stop15h 00mScandinavian Airlines

Deal found 8/12£446

Mon 19/121:05LHR - LAX

2 stops27h 55mScandinavian Airlines

Sat 31/119:30LAX - LHR

2 stops18h 05mScandinavian Airlines

Deal found 7/12£443

Tue 20/119:50LHR - LAX

2 stops29h 10mScandinavian Airlines

Tue 3/219:30LAX - LHR

2 stops18h 05mScandinavian Airlines

Deal found 8/12£443

Tue 20/106:40LHR - LAX

1 stop18h 20mScandinavian Airlines

Mon 9/219:30LAX - LHR

1 stop14h 10mScandinavian Airlines

Deal found 8/12£445

Tue 20/106:35LHR - LAX

1 stop16h 40mMultiple Airlines

Mon 26/108:40LAX - LHR

1 stop14h 00mMultiple Airlines

Deal found 8/12£448

Wed 21/106:40LHR - LAX

1 stop18h 20mScandinavian Airlines

Wed 28/119:30LAX - LHR

1 stop18h 10mScandinavian Airlines

Deal found 7/12£442

Wed 21/119:50LHR - LAX

2 stops29h 10mScandinavian Airlines

Thu 29/119:30LAX - LHR

1 stop18h 10mScandinavian Airlines

Deal found 8/12£449

Thu 22/107:05LHR - LAX

2 stops17h 55mScandinavian Airlines

Thu 29/119:30LAX - LHR

1 stop14h 10mScandinavian Airlines

Deal found 8/12£441

Fri 23/106:40LHR - LAX

1 stop18h 20mScandinavian Airlines

Sun 1/219:30LAX - LHR

1 stop18h 10mScandinavian Airlines

Deal found 8/12£446

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 9 December 2025.

Mon 26/110:05LHR - ONT

1 stop16h 40mBritish Airways

Deal found 7/12£314

Tue 20/107:30LHR - ONT

2 stops23h 23mUnited Airlines

Deal found 8/12£323

Mon 26/109:30LHR - ONT

2 stops20h 28mUnited Airlines

Deal found 8/12£326

Mon 26/108:20LHR - ONT

1 stop22h 28mMultiple Airlines

Deal found 7/12£328

Mon 16/310:15LHR - ONT

1 stop15h 27mBritish Airways

Deal found 8/12£332

Mon 4/514:25LHR - ONT

1 stop15h 31mBritish Airways

Deal found 8/12£335

Wed 15/416:25LHR - ONT

1 stop15h 15mBritish Airways

Deal found 6/12£340

Wed 29/416:25LHR - ONT

1 stop15h 15mBritish Airways

Deal found 7/12£344

Mon 19/111:35LHR - ONT

1 stop33h 12mUnited Airlines

Deal found 8/12£345

Wed 4/314:50LHR - LAS

2 stops37h 52mMultiple Airlines

Deal found 7/12£350

Mon 9/210:35LHR - SJC

1 stop16h 21mFinnair

Deal found 7/12£352

Thu 5/314:50LHR - LAS

2 stops37h 26mWestJet

Deal found 8/12£352

Find flight deals from Heathrow to California

Round-trip from	£374
One-way from	£314
Popular in	July
Cheapest in	September
Average price	£587
Good round-trip deal	£470 or less
Good one-way deal	£412 or less

United Airlines
12/1-2/2
2 total stops
31h 15m total
London to California

Search Deals

British Airways
26/1
1 total stop
16h 40m total
London to California

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£49 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

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 14/3

06:00-16:00

1 stop17h 00m

Los Angeles

Sat 11/4

16:40-10:20

1 stop33h 40m

£450

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 13/1

19:50-17:00

2 stops29h 10m

Los Angeles

Sun 18/1

19:30-21:20

2 stops17h 50m

£455

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/3

21:05-18:00

2 stops27h 55m

Los Angeles

Mon 16/3

20:30-21:35

2 stops18h 05m

£455

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

19:30-17:00

1 stop29h 30m

Los Angeles

Mon 16/2

19:30-17:40

1 stop14h 10m

£457

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 8/3

06:40-17:00

2 stops18h 20m

Los Angeles

Mon 23/3

20:30-17:40

1 stop14h 10m

£459

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 9/2

09:00-16:35

1 stop15h 35m

Los Angeles

Thu 19/2

05:05-09:40

1 stop20h 35m

£467

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 18/2

19:00-13:30

Nonstop10h 30m

£467

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 20/1

09:00-16:35

1 stop15h 35m

Los Angeles

Tue 27/1

19:00-13:30

Nonstop10h 30m

£467

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 14/2

06:00-15:00

1 stop17h 00m

Los Angeles

Sat 21/2

16:45-21:35

1 stop20h 50m

£470

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Wed 25/2

10:45-23:51

1 stop21h 06m

Oakland

Fri 6/3

05:55-10:00

1 stop20h 05m

£471

Flights are sorted by cheapest return flights first.

Deals found on 6/12

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 £341). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £404). 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 Saturday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (50 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

1,431 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

1,431 reviews

KLM

7.7

Good

1,431 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

1,431 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

9,084 reviews

KLM

7.7

Good

1,431 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

7,618 reviews

KLM

7.7

Good

1,431 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

7,566 reviews

KLM

7.7

Good

1,431 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 £450, TAP AIR PORTUGAL can have you in California from London Heathrow Airport in 17h. London Heathrow Airport and California are separated by a distance of 5439 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 £165 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £246 and Scandinavian Airlines from £251 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 (89%), Air Canada (85%), Austrian Airlines( 85%).
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 £2,651, our data indicates the cheapest price to be £368. The most popular route (London Heathrow - Los Angeles), is priced around £330.
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 £341). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £404). 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

Alternative routes for Heathrow to California

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Direct flights to United States

Heathrow to California flights

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Top 10 airlines flying from Heathrow to California

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£239	Average£548	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Finnair	Cheapest£281	Average£529	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
SWISS	Cheapest£294	Average£401	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Norse Atlantic UK	Cheapest£312	Average£575	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Aer Lingus	Cheapest£336	Average£915	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air Canada	Cheapest£338	Average£510	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Scandinavian Airlines	Cheapest£340	Average£495	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
United Airlines	Cheapest£340	Average£545	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£342	Average£521	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Austrian Airlines	Cheapest£358	Average£498	FlexibilityNo cancel fee	On-time78%	Search Austrian 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 £314

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 26/1. 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 9 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 9 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 9 December 2025.

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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 9 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

Explore weekly flight availability from Heathrow 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 9 December 2025.

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 9 December 2025.