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

Airlines like Finnair, Delta, and Scandinavian Airlines fly from California to London Heathrow Airport in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 19h 30m. There are 5439 mi between California and London Heathrow Airport. This flight may include one or multiple stops.

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

$169 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on WestJet and JetBlue, with prices starting from $281 and $367, respectively.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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

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

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

Looking at all options, your cheapest flight can be booked for $349. While the most popular route (Los Angeles - London Heathrow) can be booked for $462 on average our data indicates $3,093 when flying from California to London Heathrow Airport.

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

Consider American Airlines, Air Canada or Alaska Airlines when booking your flight. These represent the most popular airlines when flying from California to London Heathrow Airport.

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

To save on the cost of your flight from California to London Heathrow Airport, book at least 32 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $688 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $936.

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

The best pricing can be found in the month of August. Prices to London Heathrow Airport from California average $715. You can even find prices in August for less than $715, as users have found deals to London Heathrow Airport from as low as $456. The month of December appears to be one of the more expensive times to travel to London Heathrow Airport from California. Flying in the targeted month can save you up to 36%.

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

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

How can I find direct flights from California to Heathrow?

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

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

Yes. Cheapflights offers flight deals from California to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$166+ Flights from California to London Heathrow Airport

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Cheap flight deals from California to Heathrow

Round-trip from	$495 (lol.travel)
One-way from	$166 (oojo)
Popular in	December
Cheapest in	August
Average price	$615
Good round-trip deal	$569 or less
Good one-way deal	$384 or less

From California to London Heathrow

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One-way flight from California to London Heathrow

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Highest demand for flights based on searches. 11% potential increase in price ($93 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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

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

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Find flight deals from California to Heathrow

Cheapest flights from California to Heathrow
Explore the most affordable flight options available from California to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.

Wed 9/38:05 pmLAX - LHR

Nonstop10h 30mVirgin Atlantic

Fri 9/122:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/24

$494

Sun 9/78:05 pmLAX - LHR

Nonstop10h 30mVirgin Atlantic

Tue 9/235:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/26

$495

Sun 10/510:26 amLAX - LHR

1 stop14h 59mIberia

Tue 10/148:50 pmLHR - LAX

1 stop24h 45mIberia

Deal found 8/24

$497

Tue 9/91:25 pmLAX - LHR

Nonstop10h 35mIberia

Wed 9/178:50 pmLHR - LAX

1 stop29h 15mIberia

Deal found 8/24

$501

Mon 9/110:50 pmLAX - LHR

Nonstop10h 25mVirgin Atlantic

Tue 9/162:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/25

$502

Mon 9/12:33 pmLAX - LHR

1 stop15h 52mIberia

Wed 1/146:50 pmLHR - LAX

1 stop32h 20mIberia

Deal found 8/23

$505

Wed 9/39:05 amLAX - LHR

1 stop13h 20mIberia

Wed 9/178:50 pmLHR - LAX

1 stop29h 15mIberia

Deal found 8/24

$506

Tue 9/91:25 pmLAX - LHR

Nonstop10h 35mIberia

Tue 9/168:00 pmLHR - LAX

1 stop28h 05mIberia

Deal found 8/26

$507

Tue 9/910:50 pmLAX - LHR

Nonstop10h 25mDelta

Wed 9/2411:30 amLHR - LAX

1 stop14h 55mDelta

Deal found 8/23

$508

Tue 9/238:05 pmLAX - LHR

Nonstop10h 30mDelta

Thu 10/96:30 amLHR - LAX

1 stop13h 20mDelta

Deal found 8/25

$509

Wed 10/296:00 pmSFO - LHR

2 stops17h 50mScandinavian Airlines

Mon 11/106:40 amLHR - SFO

1 stop15h 55mScandinavian Airlines

Deal found 8/24

$516

Mon 12/14:40 pmSFO - LHR

2 stops18h 10mScandinavian Airlines

Mon 12/86:40 amLHR - SFO

1 stop15h 55mScandinavian Airlines

Deal found 8/24

$517

Best flights from California to Heathrow
Discover carefully curated flight deals from California to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2025.

Sun 10/267:50 pmLAX - LHR

1 stop17h 50mFinnair

Tue 11/47:30 amLHR - LAX

1 stop17h 35mFinnair

Deal found 8/26

$495

Tue 10/710:50 pmLAX - LHR

Nonstop10h 25mDelta

Fri 10/248:40 amLHR - LAX

1 stop14h 10mDelta

Deal found 8/25

$509

Mon 9/2910:50 pmLAX - LHR

Nonstop10h 25mVirgin Atlantic

Tue 10/76:30 amLHR - LAX

1 stop16h 20mVirgin Atlantic

Deal found 8/23

$509

Thu 10/237:40 pmSFO - LHR

2 stops29h 55mScandinavian Airlines

Wed 10/296:40 amLHR - SFO

1 stop16h 30mScandinavian Airlines

Deal found 8/25

$520

Wed 11/126:00 amPSP - LHR

1 stop20h 00mMultiple Airlines

Wed 11/196:20 amLHR - PSP

2 stops17h 57mMultiple Airlines

Deal found 8/24

$523

Wed 11/512:20 pmPSP - LHR

1 stop13h 40mKLM

Tue 11/118:25 pmLHR - PSP

2 stops27h 52mKLM

Deal found 8/24

$524

Tue 1/66:00 pmSAN - LHR

Nonstop10h 35mBritish Airways

Tue 2/312:50 pmLHR - SAN

Nonstop11h 20mBritish Airways

Deal found 8/25

$555

Mon 1/125:53 amSJC - LHR

1 stop18h 22mIberia

Mon 2/26:45 pmLHR - SJC

2 stops23h 20mIberia

Deal found 8/24

$630

Tue 2/108:40 amSJC - LHR

1 stop17h 00mUnited Airlines

Tue 2/176:00 pmLHR - SJC

2 stops35h 11mUnited Airlines

Deal found 8/24

$634

Wed 10/86:22 pmSJC - LHR

2 stops29h 18mLufthansa

Wed 10/158:30 amLHR - SJC

2 stops16h 47mLufthansa

Deal found 8/25

$635

Tue 10/143:45 pmLAX - LHR

Nonstop10h 30mDelta

Fri 10/246:30 amLHR - LAX

1 stop16h 20mDelta

Deal found 8/25

$509

Thu 10/237:40 pmSFO - LHR

2 stops29h 55mScandinavian Airlines

Mon 11/36:40 amLHR - SFO

1 stop15h 55mScandinavian Airlines

Deal found 8/25

$520

Last-minute flights from California to Heathrow
Discover last-minute flight deals from California to Heathrow. Data last updated August 26, 2025 and is based on user searches.

Mon 9/110:50 pmLAX - LHR

Nonstop10h 25mVirgin Atlantic

Tue 9/162:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/25

$502

Mon 9/12:33 pmLAX - LHR

1 stop15h 52mIberia

Wed 1/146:50 pmLHR - LAX

1 stop32h 20mIberia

Deal found 8/23

$505

Wed 9/38:05 pmLAX - LHR

Nonstop10h 30mVirgin Atlantic

Fri 9/122:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/24

$494

Wed 9/39:05 amLAX - LHR

1 stop13h 20mIberia

Wed 9/178:50 pmLHR - LAX

1 stop29h 15mIberia

Deal found 8/24

$506

Wed 9/33:25 pmLAX - LHR

1 stop13h 20mBritish Airways

Fri 9/121:10 pmLHR - LAX

1 stop14h 55mBritish Airways

Deal found 8/26

$510

Sun 9/78:05 pmLAX - LHR

Nonstop10h 30mVirgin Atlantic

Tue 9/235:30 pmLHR - LAX

Nonstop11h 15mVirgin Atlantic

Deal found 8/26

$495

Tue 9/91:25 pmLAX - LHR

Nonstop10h 35mIberia

Wed 9/178:50 pmLHR - LAX

1 stop29h 15mIberia

Deal found 8/24

$501

Tue 9/91:25 pmLAX - LHR

Nonstop10h 35mIberia

Tue 9/168:00 pmLHR - LAX

1 stop28h 05mIberia

Deal found 8/26

$507

Tue 9/910:50 pmLAX - LHR

Nonstop10h 25mDelta

Wed 9/2411:30 amLHR - LAX

1 stop14h 55mDelta

Deal found 8/23

$508

Tue 9/238:05 pmLAX - LHR

Nonstop10h 30mDelta

Thu 10/96:30 amLHR - LAX

1 stop13h 20mDelta

Deal found 8/25

$509

Tue 9/231:52 pmSNA - LHR

1 stop15h 38mDelta

Tue 9/306:15 amLHR - SNA

2 stops19h 46mDelta

Deal found 8/26

$524

Mon 9/296:02 amPSP - LHR

1 stop19h 48mDelta

Wed 10/86:15 amLHR - PSP

2 stops23h 21mDelta

Deal found 8/24

$523

One-way flights from California to Heathrow
Search for one-way flight options from California to Heathrow. Find affordable one-way fares based on user searches. Data last updated August 26, 2025.

Sun 9/284:40 pmLAX - LHR

1 stop17h 05mTAP AIR PORTUGAL

Deal found 8/24

$166

Sat 11/294:45 pmLAX - LHR

1 stop35h 55mTAP AIR PORTUGAL

Deal found 8/25

$168

Sun 10/124:40 pmLAX - LHR

1 stop21h 20mTAP AIR PORTUGAL

Deal found 8/25

$169

Sun 10/194:40 pmLAX - LHR

1 stop17h 05mTAP AIR PORTUGAL

Deal found 8/26

$173

Sun 9/214:40 pmLAX - LHR

1 stop22h 15mTAP AIR PORTUGAL

Deal found 8/24

$176

Sat 10/254:40 pmLAX - LHR

1 stop37h 00mTAP AIR PORTUGAL

Deal found 8/25

$181

Tue 10/285:45 pmLAX - LHR

1 stop16h 45mTAP AIR PORTUGAL

Deal found 8/25

$184

Sun 9/144:40 pmLAX - LHR

1 stop33h 40mTAP AIR PORTUGAL

Deal found 8/25

$185

Sat 10/256:15 amSAN - LHR

3 stops32h 20mMultiple Airlines

Deal found 8/26

$254

Sat 11/159:10 amSMF - LHR

2 stops24h 20mMultiple Airlines

Deal found 8/25

$255

Fri 10/248:11 amSAN - LHR

2 stops19h 54mMultiple Airlines

Deal found 8/25

$262

Sun 9/216:15 amSJC - LHR

2 stops32h 40mMultiple Airlines

Deal found 8/25

$267

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 10/26

7:50 pm-8:40 pm

1 stop17h 50m

London Heathrow

Tue 11/4

7:30 am-5:05 pm

1 stop17h 35m

$495

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 10/7

10:50 pm-5:15 pm

Nonstop10h 25m

London Heathrow

Fri 10/24

8:40 am-2:50 pm

1 stop14h 10m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 9/29

10:50 pm-5:15 pm

Nonstop10h 25m

London Heathrow

Tue 10/7

6:30 am-2:50 pm

1 stop16h 20m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 10/14

3:45 pm-10:15 am

Nonstop10h 30m

London Heathrow

Fri 10/24

6:30 am-2:50 pm

1 stop16h 20m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 9/23

10:50 pm-5:15 pm

Nonstop10h 25m

London Heathrow

Thu 10/2

6:30 am-2:50 pm

1 stop16h 20m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 10/13

3:30 pm-10:00 am

Nonstop10h 30m

London Heathrow

Thu 10/23

6:30 am-2:50 pm

1 stop16h 20m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 9/21

3:30 pm-10:00 am

Nonstop10h 30m

London Heathrow

Tue 9/30

6:30 am-11:50 am

1 stop13h 20m

$509

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/23

7:40 pm-9:35 am

2 stops29h 55m

London Heathrow

Wed 10/29

6:40 am-4:10 pm

1 stop16h 30m

$520

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/23

7:40 pm-9:35 am

2 stops29h 55m

London Heathrow

Mon 11/3

6:40 am-2:35 pm

1 stop15h 55m

$520

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 11/16

4:40 pm-6:50 pm

2 stops18h 10m

London Heathrow

Fri 11/21

6:40 am-2:35 pm

1 stop15h 55m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

Showing 1-10 of 60 results

...

Best time to book a flight from California to Heathrow

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

Estimated round-trip 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 Heathrow Airport

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

Currently, November is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $661). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $1,098). 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 LHR?

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

Weekly flight availability from California to London Heathrow Airport

The most flights from USCA to LHR are scheduled on a Monday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

Related info for your journey

How long is the flight from California to London Heathrow Airport?
Airlines like Finnair, Delta, and Scandinavian Airlines fly from California to London Heathrow Airport in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 19h 30m. There are 5439 mi between California and London Heathrow Airport. This flight may include one or multiple stops.
What are the cheapest airlines to fly from California to London Heathrow Airport one-way?
$169 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on WestJet and JetBlue, with prices starting from $281 and $367, respectively.
What are the most popular routes from California to London Heathrow Airport?
When deciding which route to take from California to London Heathrow Airport consider Los Angeles - London Heathrow, San Francisco - London Heathrow or San Diego - London Heathrow as they are the most popular.
What are the most reliable airlines from California to London Heathrow Airport?
The top 3 most reliable airlines when flying from California to London Heathrow Airport are KLM (94%), Air France (94%) and Delta (94%).
What are the cheapest flights from California to London Heathrow Airport?
Looking at all options, your cheapest flight can be booked for $349. While the most popular route (Los Angeles - London Heathrow) can be booked for $462 on average our data indicates $3,093 when flying from California to London Heathrow Airport.
Can I find deals for flights from California to Heathrow that include hotel bookings?
Yes. In addition to deals on California to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from California to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Heathrow.
Can I find deals for business class flights from California to Heathrow?
Yes. Cheapflights offers flight deals from California to Heathrow 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 Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from California to London Heathrow Airport (average of $661). Flying from California to London Heathrow Airport in June is currently the most expensive (average of $1,098). 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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Harrow

Canterbury

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Dartford

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Stratford-upon-Avon

Orpington

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Top 10 airlines flying from California to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$151	Average$870	FlexibilityNo cancel fee	On-time62%
WestJet	Cheapest$272	Average$1,046	FlexibilityNo cancel fee	On-time60%
Scandinavian Airlines	Cheapest$335	Average$653	FlexibilityNo cancel fee	On-time77%
SWISS	Cheapest$336	Average$701	FlexibilityNo cancel fee	On-time79%
Lufthansa	Cheapest$386	Average$790	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$427	Average$614	FlexibilityNo cancel fee	On-timeN/A
Aer Lingus	Cheapest$475	Average$782	FlexibilityNo cancel fee	On-timeN/A
Norse Atlantic UK	Cheapest$477	Average$748	FlexibilityNo cancel fee	On-timeN/A
Finnair	Cheapest$518	Average$708	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$526	Average$1,040	FlexibilityNo cancel fee	On-time71%

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$166+ Cheap flights from California to Heathrow (LHR)

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from California to Heathrow with Cheapflights

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Cheap flight deals from California to Heathrow

Keep the following information in mind while searching for California to Heathrow flight deals. Data was last updated August 26, 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 Heathrow

Cheapest flights from California to HeathrowExplore the most affordable flight options available from California to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.

Explore the most affordable flight options available from California to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from California to Heathrow

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

Cheapflights Insights

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

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

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

Find hourly flight availability from California to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 26, 2025.

Weekly flight availability from California to London Heathrow Airport

Explore weekly flight availability from California to Heathrow. 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 August 26, 2025.

Related info for your journey

Find useful and relevant information for your journey from California to Heathrow. 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 California to London Heathrow Airport?

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

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

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

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

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

How can I find direct flights from California to Heathrow?

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

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

Traveling to a place near London Heathrow Airport?

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Alternative routes for California to Heathrow

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Top 10 airlines flying from California to Heathrow

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Cheapest flights from California to Heathrow
Explore the most affordable flight options available from California to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.