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

For as low as £433, Delta can have you in California from London Heathrow Airport in 15h 55m. London Heathrow Airport and California are separated by a distance of 5350 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 £312 on British Airways. Other airlines that offer cheap prices include SWISS from £313 and Virgin Atlantic from £315 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 - San Francisco or London Heathrow - Las Vegas Harry Reid Intl 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 £2,608, our data indicates the cheapest price to be £363. The most popular route (London Heathrow - Los Angeles), is priced around £353.

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: KLM (84%), Air France (84%), Delta( 84%).

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.

£293+ Flights from London Heathrow Airport to California

Q: How much does it cost for a return flight from London Heathrow Airport to California?

Airfare is below average for this route at the moment. London Heathrow Airport to California flights typically cost between £414 and £571 in November. The cheapest return flight price found within the last 3 days was £359 on TAP AIR PORTUGAL (6 Nov-13 Nov).

Cheap flight deals from Heathrow to California

Round-trip from	£359
One-way from	£293
Popular in	December
Cheapest in	September
Average price	£483
Good round-trip deal	£426 or less
Good one-way deal	£401 or less

TAP AIR PORTUGAL
6/11-13/11
2 total stops
34h 50m total
London to California

Search Deals

20/4
2 total stops
28h 05m total
London to California

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£16 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 October 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

Find 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 22 October 2025.

Thu 6/1106:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 13/1116:45LAX - LHR

1 stop18h 10mTAP AIR PORTUGAL

Deal found 20/10£359

Thu 20/1106:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 11/1216:45LAX - LHR

1 stop21h 55mTAP AIR PORTUGAL

Deal found 21/10£360

Mon 17/1118:30LHR - LAX

1 stop28h 30mTAP AIR PORTUGAL

Tue 2/1216:45LAX - LHR

1 stop21h 55mTAP AIR PORTUGAL

Deal found 20/10£361

Thu 4/1206:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 11/1216:45LAX - LHR

1 stop34h 40mTAP AIR PORTUGAL

Deal found 20/10£362

Thu 20/1106:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 27/1116:45LAX - LHR

1 stop18h 10mTAP AIR PORTUGAL

Deal found 21/10£364

Mon 17/1113:40LHR - LAX

1 stop33h 20mTAP AIR PORTUGAL

Sat 29/1116:45LAX - LHR

1 stop20h 50mTAP AIR PORTUGAL

Deal found 21/10£365

Thu 20/1106:00LHR - LAX

1 stop16h 40mTAP AIR PORTUGAL

Thu 22/116:45LAX - LHR

1 stop16h 45mTAP AIR PORTUGAL

Deal found 22/10£366

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Sat 6/1216:35SFO - LHR

1 stop18h 20mTAP AIR PORTUGAL

Deal found 20/10£383

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Wed 3/1216:35SFO - LHR

1 stop16h 55mTAP AIR PORTUGAL

Deal found 20/10£398

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Fri 28/1119:10SFO - LHR

1 stop15h 45mTAP AIR PORTUGAL

Deal found 20/10£399

Thu 20/1106:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Fri 28/1116:40SFO - LHR

2 stops17h 50mScandinavian Airlines

Deal found 21/10£402

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Wed 10/1216:35SFO - LHR

1 stop18h 20mTAP AIR PORTUGAL

Deal found 20/10£403

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 22 October 2025.

Tue 23/1206:20LHR - ONT

2 stops18h 48mDelta

Mon 29/1213:15ONT - LHR

1 stop12h 45mDelta

Deal found 22/10£408

Fri 6/317:05LHR - BUR

2 stops31h 17mVirgin Atlantic

Tue 10/312:45BUR - LHR

1 stop13h 15mVirgin Atlantic

Deal found 21/10£409

Sun 11/110:45LHR - ONT

1 stop13h 34mKLM

Fri 7/813:00ONT - LHR

1 stop12h 50mKLM

Deal found 22/10£423

Sat 21/206:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Sun 1/316:40SFO - LHR

1 stop17h 50mScandinavian Airlines

Deal found 21/10£433

Mon 24/1109:00LHR - LAX

1 stop15h 35mUnited Airlines

Mon 8/1211:40LAX - LHR

1 stop14h 35mUnited Airlines

Deal found 21/10£462

Wed 25/206:00LHR - LAX

1 stop18h 35mSWISS

Wed 4/311:35LAX - LHR

2 stops20h 45mSWISS

Deal found 21/10£466

Mon 24/1107:40LHR - SNA

2 stops18h 38mLufthansa

Mon 8/1216:00SNA - LHR

2 stops16h 50mLufthansa

Deal found 22/10£471

Mon 24/1111:50LHR - LAX

Nonstop11h 30mBritish Airways

Mon 8/1215:30LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 21/10£485

Sat 15/1108:05LHR - LAS

1 stop22h 05mJetBlue

Tue 18/1123:15LAS - LHR

1 stop14h 25mJetBlue

Deal found 21/10£585

Thu 25/1212:20LHR - SNA

2 stops17h 44mVirgin Atlantic

Thu 1/107:15SNA - LHR

1 stop19h 15mVirgin Atlantic

Deal found 20/10£421

Sun 11/112:30LHR - ONT

1 stop16h 44mDelta

Wed 5/811:55ONT - LHR

1 stop13h 05mDelta

Deal found 22/10£423

Wed 5/1109:00LHR - LAX

1 stop15h 35mUnited Airlines

Mon 17/1100:25LAX - LHR

1 stop21h 30mUnited Airlines

Deal found 20/10£463

Wed 15/412:25LHR - LGB

2 stops35h 56mVirgin Atlantic

Wed 6/512:59LGB - LHR

2 stops34h 16mVirgin Atlantic

Deal found 22/10£421

Sun 11/110:45LHR - ONT

1 stop13h 34mDelta

Thu 6/811:55ONT - LHR

1 stop13h 05mDelta

Deal found 22/10£423

Thu 11/1206:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Mon 29/1216:40SFO - LHR

1 stop15h 20mScandinavian Airlines

Deal found 21/10£485

Tue 2/1218:40LHR - SFO

1 stop29h 50mSWISS

Tue 9/1219:25SFO - LHR

2 stops18h 00mSWISS

Deal found 20/10£490

Wed 5/1109:00LHR - LAX

1 stop15h 35mUnited Airlines

Mon 10/1108:30LAX - LHR

1 stop14h 40mUnited Airlines

Deal found 21/10£463

Fri 9/108:55LHR - ONT

1 stop20h 19mDelta

Fri 24/417:05ONT - LHR

1 stop32h 45mDelta

Deal found 21/10£423

Fri 27/308:55LHR - SNA

1 stop16h 55mVirgin Atlantic

Tue 31/311:00SNA - LHR

1 stop19h 15mVirgin Atlantic

Deal found 21/10£423

Mon 24/1112:50LHR - SAN

Nonstop11h 20mBritish Airways

Tue 9/1209:37SAN - LHR

1 stop13h 13mBritish Airways

Deal found 22/10£516

Tue 4/1120:25LHR - OAK

2 stops27h 46mKLM

Wed 3/1212:30OAK - LHR

1 stop13h 30mKLM

Deal found 21/10£528

Thu 11/1206:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Sat 27/1216:40SFO - LHR

1 stop17h 00mScandinavian Airlines

Deal found 21/10£485

Sat 10/112:30LHR - ONT

1 stop16h 44mDelta

Sat 25/413:00ONT - LHR

1 stop12h 50mDelta

Deal found 21/10£423

Fri 27/215:50LHR - LGB

2 stops32h 33mVirgin Atlantic

Tue 3/312:59LGB - LHR

2 stops34h 51mVirgin Atlantic

Deal found 21/10£423

Wed 4/209:00LHR - SFO

1 stop15h 30mUnited Airlines

Wed 18/212:50SFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 21/10£466

Tue 4/1120:25LHR - OAK

2 stops27h 46mKLM

Thu 4/1205:55OAK - LHR

2 stops17h 10mKLM

Deal found 21/10£528

Wed 19/1108:20LHR - SAN

1 stop15h 33mBritish Airways

Wed 17/1206:30SAN - LHR

1 stop17h 20mBritish Airways

Deal found 21/10£540

Sat 10/115:50LHR - ONT

1 stop27h 48mDelta

Thu 6/812:00ONT - LHR

1 stop17h 30mDelta

Deal found 22/10£423

Tue 10/309:00LHR - LAX

1 stop15h 35mUnited Airlines

Tue 17/314:40LAX - LHR

1 stop13h 25mUnited Airlines

Deal found 20/10£466

Thu 26/210:00LHR - ONT

2 stops44h 38mVirgin Atlantic

Mon 2/313:00ONT - LHR

1 stop13h 00mVirgin Atlantic

Deal found 21/10£427

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 22 October 2025.

Mon 3/1111:45LHR - SFO

Nonstop11h 15mBritish Airways

Mon 3/1117:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 20/10£415

Thu 12/217:20LHR - LAX

Nonstop11h 20mVirgin Atlantic

Mon 23/222:30LAX - LHR

Nonstop10h 20mVirgin Atlantic

Deal found 21/10£447

Fri 10/416:55LHR - LAX

Nonstop11h 20mBritish Airways

Fri 17/417:05LAX - LHR

Nonstop10h 30mBritish Airways

Deal found 20/10£451

Thu 25/1211:20LHR - LAX

Nonstop11h 15mDelta

Tue 30/1222:30LAX - LHR

Nonstop10h 20mDelta

Deal found 22/10£457

Mon 24/1111:40LHR - SFO

Nonstop11h 00mVirgin Atlantic

Mon 8/1216:30SFO - LHR

Nonstop10h 10mVirgin Atlantic

Deal found 20/10£460

Mon 16/217:20LHR - LAX

Nonstop11h 20mVirgin Atlantic

Mon 23/222:30LAX - LHR

Nonstop10h 20mVirgin Atlantic

Deal found 21/10£460

Mon 24/1111:45LHR - SFO

Nonstop11h 15mBritish Airways

Mon 8/1220:40SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 20/10£460

Mon 24/1111:40LHR - SFO

Nonstop11h 00mVirgin Atlantic

Tue 9/1216:30SFO - LHR

Nonstop10h 10mVirgin Atlantic

Deal found 21/10£461

Wed 19/1115:20LHR - LAX

Nonstop11h 25mAustrian Airlines

Wed 10/1219:00LAX - LHR

Nonstop10h 30mAustrian Airlines

Deal found 22/10£463

Wed 3/1210:05LHR - SFO

Nonstop11h 15mLufthansa

Wed 10/1217:25SFO - LHR

Nonstop10h 35mLufthansa

Deal found 22/10£464

Wed 5/1115:20LHR - LAX

Nonstop11h 25mLufthansa

Wed 12/1119:00LAX - LHR

Nonstop10h 30mLufthansa

Deal found 21/10£464

Tue 25/1113:45LHR - SFO

Nonstop11h 15mLufthansa

Thu 4/1212:50SFO - LHR

Nonstop10h 35mLufthansa

Deal found 20/10£465

Last-minute flights from Heathrow to California
Discover last-minute flight deals from Heathrow to California. Data last updated 22 October 2025 and is based on user searches.

Mon 3/1111:45LHR - SFO

Nonstop11h 15mBritish Airways

Mon 3/1117:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 20/10£415

Thu 6/1118:40LHR - SFO

1 stop27h 55mScandinavian Airlines

Thu 13/1116:40SFO - LHR

1 stop15h 20mScandinavian Airlines

Deal found 21/10£415

Fri 7/1109:40LHR - LGB

2 stops43h 53mVirgin Atlantic

Sat 22/1113:15LGB - LHR

2 stops33h 35mVirgin Atlantic

Deal found 22/10£463

Mon 10/1106:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Thu 13/1116:40SFO - LHR

1 stop17h 00mScandinavian Airlines

Deal found 22/10£413

Tue 18/1114:30LHR - SNA

1 stop28h 55mAir Canada

Tue 25/1112:25SNA - LHR

1 stop15h 25mAir Canada

Deal found 21/10£463

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Sat 29/1116:35SFO - LHR

1 stop22h 05mTAP AIR PORTUGAL

Deal found 20/10£383

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Wed 3/1216:35SFO - LHR

1 stop16h 55mTAP AIR PORTUGAL

Deal found 20/10£398

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Fri 28/1119:10SFO - LHR

1 stop15h 45mTAP AIR PORTUGAL

Deal found 20/10£399

Wed 19/1106:00LHR - SFO

1 stop16h 30mTAP AIR PORTUGAL

Wed 10/1216:35SFO - LHR

1 stop18h 20mTAP AIR PORTUGAL

Deal found 20/10£403

Thu 20/1106:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Fri 28/1116:40SFO - LHR

2 stops17h 50mScandinavian Airlines

Deal found 21/10£402

Fri 21/1119:30LHR - SFO

1 stop27h 05mScandinavian Airlines

Fri 28/1116:40SFO - LHR

1 stop15h 20mScandinavian Airlines

Deal found 22/10£414

Mon 24/1106:40LHR - SFO

1 stop15h 55mScandinavian Airlines

Mon 8/1216:40SFO - LHR

1 stop17h 50mScandinavian Airlines

Deal found 20/10£404

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 22 October 2025.

Mon 20/421:05LHR - LAX

2 stops28h 05mMultiple Airlines

Deal found 20/10£293

Tue 13/110:20LHR - LAX

1 stop14h 45mAmerican Airlines

Deal found 20/10£294

Fri 23/122:15LHR - LAX

2 stops51h 55mMultiple Airlines

Deal found 21/10£294

Mon 12/121:05LHR - LAX

2 stops28h 00mMultiple Airlines

Deal found 20/10£295

Tue 3/209:00LHR - LAX

2 stops21h 00mAir Canada

Deal found 19/10£297

Wed 10/1218:50LHR - LAX

1 stop32h 20mLEVEL

Deal found 19/10£299

Wed 10/1209:00LHR - LAX

2 stops21h 00mAir Canada

Deal found 19/10£300

Thu 16/406:40LHR - LAX

2 stops18h 30mMultiple Airlines

Deal found 20/10£302

Mon 12/107:50LHR - LAX

1 stop18h 40mAer Lingus

Deal found 22/10£303

Wed 21/119:40LHR - LAX

2 stops31h 30mIberia

Deal found 20/10£303

Sun 14/1209:55LHR - LAX

1 stop16h 15mLEVEL

Deal found 20/10£304

Fri 23/109:55LHR - SAN

2 stops41h 51mMultiple Airlines

Deal found 21/10£311

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

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 23/12

06:20-17:08

2 stops18h 48m

Ontario

Mon 29/12

13:15-10:00

1 stop12h 45m

£408

LondonBurbank

LHR - BUR

LHRBUR

London Heathrow

Fri 6/3

17:05-16:22

2 stops31h 17m

Burbank Bob Hope

Tue 10/3

12:45-09:00

1 stop13h 15m

£409

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Thu 25/12

12:20-22:04

2 stops17h 44m

Santa Ana J. Wayne/Orange Cnty

Thu 1/1

07:15-10:30

1 stop19h 15m

£421

LondonLong Beach

LHR - LGB

LHRLGB

London Heathrow

Wed 15/4

12:25-16:21

2 stops35h 56m

Long Beach Municipal

Wed 6/5

12:59-07:15

2 stops34h 16m

£421

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 11/1

10:45-16:19

1 stop13h 34m

Ontario

Fri 7/8

13:00-09:50

1 stop12h 50m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 11/1

12:30-21:14

1 stop16h 44m

Ontario

Wed 5/8

11:55-09:00

1 stop13h 05m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 11/1

10:45-16:19

1 stop13h 34m

Ontario

Thu 6/8

11:55-09:00

1 stop13h 05m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 9/1

08:55-21:14

1 stop20h 19m

Ontario

Fri 24/4

17:05-09:50

1 stop32h 45m

£423

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Fri 27/3

08:55-18:50

1 stop16h 55m

Santa Ana J. Wayne/Orange Cnty

Tue 31/3

11:00-14:15

1 stop19h 15m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 10/1

12:30-21:14

1 stop16h 44m

Ontario

Sat 25/4

13:00-09:50

1 stop12h 50m

£423

Flights are sorted by cheapest return flights first.

Deals found on 20/10

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 £338). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £415). 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 16% 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.

How much does it cost for a return flight 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.

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

KLM

7.7

Good

1,404 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Virgin Atlantic

7.5

Good

670 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

United Airlines

7.4

Good

8,988 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Lufthansa

6.8

Okay

7,507 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

British Airways

6.7

Okay

7,466 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

How long is the flight from London Heathrow Airport to California?
For as low as £433, Delta can have you in California from London Heathrow Airport in 15h 55m. London Heathrow Airport and California are separated by a distance of 5350 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 £312 on British Airways. Other airlines that offer cheap prices include SWISS from £313 and Virgin Atlantic from £315 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 - San Francisco or London Heathrow - Las Vegas Harry Reid Intl 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: KLM (84%), Air France (84%), Delta( 84%).
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 £2,608, our data indicates the cheapest price to be £363. The most popular route (London Heathrow - Los Angeles), is priced around £353.
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 £338). Flying from London Heathrow Airport to California in July is currently the most expensive (average of £415). 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.

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Complete your trip

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Direct flights to United States

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Top 10 airlines flying from Heathrow to California

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£238	Average£532	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Finnair	Cheapest£280	Average£525	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
SWISS	Cheapest£293	Average£401	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Norse Atlantic UK	Cheapest£307	Average£576	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Aer Lingus	Cheapest£335	Average£552	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air Canada	Cheapest£336	Average£500	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest£339	Average£556	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Scandinavian Airlines	Cheapest£345	Average£500	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Brussels Airlines	Cheapest£347	Average£477	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
TAP AIR PORTUGAL	Cheapest£354	Average£503	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL 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 £293

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to California

Keep the following information in mind while searching for Heathrow to California flight deals. Data was last updated 22 October 2025.

Round-trip from

One-way from

Popular in

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Average price

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Good one-way deal

Find 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 22 October 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 22 October 2025.

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 22 October 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.

How much does it cost for a return flight 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

Fly with Cheapflights

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 22 October 2025.