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

A quick flight from London Heathrow Airport to Pasadena can take about 11h 10m. United Airlines provides one of the quickest options available for as low as £471. London Heathrow Airport and Pasadena are separated by a distance of 5439 mi. Both multi-stop and direct flights can be found to your destination and back.

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

£165 is the cheapest one-way deal found within the past few days, from Norse Atlantic UK. You may also be able to find cheap deals on WestJet and TAP AIR PORTUGAL, with prices starting from £171 and £246, respectively.

In terms of precipitation, rainfall in Pasadena 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 Pasadena when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Pasadena, 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 cheapest flights from London Heathrow Airport to Pasadena?

While on average a flight from London Heathrow Airport to Pasadena is generally £2,791, our data shows the cheapest flight currently is £373. When looking at the most popular route, (London Heathrow - Los Angeles Los Angeles), you can expect to pay £359 for that flight.

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

Before booking your flight to Pasadena from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (97%), Fiji Airways (90%), Malaysia Airlines( 90%).

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

Consider Virgin Atlantic, British Airways or Lufthansa when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Pasadena.

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

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

How can I find direct flights from Heathrow to Pasadena?

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

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

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

£342+ Cheap Flights from London Heathrow Airport to Pasadena

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

Airfare is below average for this route at the moment. London Heathrow Airport to Pasadena flights typically cost between £395 and £579 in May. The cheapest return flight price found within the last 3 days was £366 on British Airways (14 May-26 May).

Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in September or February, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Heathrow to Pasadena

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Pasadena
Explore the most affordable flight options available from Heathrow to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Thu 14/510:30

LHR

LAX

Nonstop11h 15m

British Airways

Tue 26/520:55

LAX

LHR

Nonstop10h 30m

British Airways

Deal found 17/3£366

Mon 6/410:00

LHR

LAX

1 stop18h 20m

United Airlines

Tue 21/408:15

LAX

LHR

1 stop16h 45m

United Airlines

Deal found 16/3£368

Sun 3/509:30

LHR

LAX

1 stop18h 29m

Air Canada

Tue 30/607:30

LAX

LHR

1 stop17h 05m

Air Canada

Deal found 15/3£371

Thu 30/411:40

LHR

LAX

Nonstop11h 10m

British Airways

Fri 8/520:55

LAX

LHR

Nonstop10h 30m

British Airways

Deal found 15/3£375

Tue 23/608:00

LHR

LAX

1 stop18h 20m

United Airlines

Mon 6/706:00

LAX

LHR

1 stop15h 55m

United Airlines

Deal found 15/3£377

Thu 14/515:05

LHR

LAX

Nonstop11h 15m

British Airways

Wed 27/517:05

LAX

LHR

Nonstop10h 30m

British Airways

Deal found 17/3£379

Fri 3/708:30

LHR

LAX

1 stop14h 58m

Air Canada

Sat 25/708:15

LAX

LHR

1 stop17h 45m

Air Canada

Deal found 17/3£380

Thu 14/510:20

LHR

LAX

1 stop14h 50m

Finnair

Mon 1/618:50

LAX

LHR

1 stop17h 50m

Finnair

Deal found 17/3£385

Wed 10/610:20

LHR

LAX

1 stop14h 50m

Finnair

Wed 24/618:50

LAX

LHR

1 stop17h 50m

Finnair

Deal found 15/3£391

Wed 29/711:25

LHR

LAX

1 stop13h 50m

United Airlines

Thu 10/914:30

LAX

LHR

1 stop13h 50m

United Airlines

Deal found 17/3£397

Sat 23/511:05

LHR

LAX

1 stop17h 35m

United Airlines

Sun 7/610:55

LAX

LHR

1 stop17h 25m

United Airlines

Deal found 14/3£401

Thu 14/507:45

LHR

LAX

1 stop15h 12m

United Airlines

Sat 30/508:20

LAX

LHR

1 stop14h 55m

United Airlines

Deal found 17/3£402

Find flight deals from Heathrow to Pasadena

Round-trip from	£366
One-way from	£342
Popular in	December
Cheapest in	September
Average price	£474

British Airways
14/5-26/5
Nonstop
21h 45m total
London to Pasadena

Search Deals

Austrian Airlines
11/5
1 total stop
15h 05m total
London to Pasadena

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£21 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 6/5

08:40-16:30

1 stop15h 50m

Los Angeles Los Angeles

Sun 10/5

05:00-09:40

1 stop20h 40m

£444

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 2/5

06:00-13:05

1 stop15h 05m

Los Angeles Los Angeles

Fri 8/5

15:30-10:10

Nonstop10h 40m

£445

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 24/4

08:40-16:30

1 stop15h 50m

Los Angeles Los Angeles

Fri 1/5

22:30-10:00

1 stop27h 30m

£446

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 13/4

07:25-15:15

1 stop15h 50m

Los Angeles Los Angeles

Sun 26/4

15:30-10:10

Nonstop10h 40m

£449

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 13/4

13:05-16:15

Nonstop11h 10m

Los Angeles Los Angeles

Sun 26/4

15:30-10:10

Nonstop10h 40m

£471

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 13/4

15:05-21:29

1 stop14h 24m

Los Angeles Los Angeles

Sun 26/4

09:15-07:25

1 stop14h 10m

£472

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 1/5

10:05-18:27

1 stop16h 22m

Los Angeles Los Angeles

Fri 8/5

22:30-21:40

1 stop15h 10m

£475

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 10/4

13:05-16:15

Nonstop11h 10m

Los Angeles Los Angeles

Wed 22/4

15:30-10:10

Nonstop10h 40m

£482

Fastest return journey

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 18/6

13:05-16:10

Nonstop11h 05m

Los Angeles Los Angeles

Sun 12/7

15:35-10:10

Nonstop10h 35m

£494

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 24/5

07:25-15:15

1 stop15h 50m

Los Angeles Los Angeles

Mon 1/6

15:35-10:10

Nonstop10h 35m

£497

Flights are sorted by cheapest return flights first.

Deals found on 18/3

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Heathrow to Pasadena

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

LHR-LAX

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 Pasadena

LHR-P4S

LHR-LAX

How far ahead should I book a flight from London Heathrow Airport to Pasadena?

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Pasadena. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £333). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £389). 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 P4S?

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

Weekly flight availability from London Heathrow Airport to Pasadena

The most flights from LHR to P4S are scheduled on a Monday (50 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (42 on average).

How much does it cost for a return flight from London Heathrow Airport to Pasadena?

Reviews of airlines servicing Pasadena

Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM,Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

KLM

7.8

Good

1,472 reviews

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Virgin Atlantic

7.5

Good

682 reviews

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

United Airlines

7.4

Good

9,442 reviews

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Lufthansa

6.8

Okay

7,857 reviews

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

British Airways

6.7

Okay

7,801 reviews

KLM

7.8

Good

1,472 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

How long is the flight from London Heathrow Airport to Pasadena?
A quick flight from London Heathrow Airport to Pasadena can take about 11h 10m. United Airlines provides one of the quickest options available for as low as £471. London Heathrow Airport and Pasadena are separated by a distance of 5439 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London Heathrow Airport to Pasadena one-way?
£165 is the cheapest one-way deal found within the past few days, from Norse Atlantic UK. You may also be able to find cheap deals on WestJet and TAP AIR PORTUGAL, with prices starting from £171 and £246, respectively.
What are the most reliable airlines from London Heathrow Airport to Pasadena?
Before booking your flight to Pasadena from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (97%), Fiji Airways (90%), Malaysia Airlines( 90%).
What are the cheapest flights from London Heathrow Airport to Pasadena?
While on average a flight from London Heathrow Airport to Pasadena is generally £2,791, our data shows the cheapest flight currently is £373. When looking at the most popular route, (London Heathrow - Los Angeles Los Angeles), you can expect to pay £359 for that flight.
Can I find deals for flights from Heathrow to Pasadena that include hotel bookings?
Yes. In addition to deals on Heathrow to Pasadena flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Pasadena?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Pasadena.
Can I find deals for business class flights from Heathrow to Pasadena?
Yes. Cheapflights offers flight deals from Heathrow to Pasadena 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 Pasadena?
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £333). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £389). 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

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Top 10 airlines flying from Heathrow to Pasadena

Airline	Cheapest	Average	Flexibility	On-time
Norse Atlantic UK	Cheapest£272	Average£552	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
SWISS	Cheapest£279	Average£385	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Delta	Cheapest£310	Average£527	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Brussels Airlines	Cheapest£335	Average£457	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Aer Lingus	Cheapest£336	Average£479	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Scandinavian Airlines	Cheapest£341	Average£464	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Austrian Airlines	Cheapest£353	Average£482	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
TAP AIR PORTUGAL	Cheapest£355	Average£482	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
KLM	Cheapest£356	Average£528	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£356	Average£512	FlexibilityNo cancel fee	On-time77%	Search Air France flights

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

When you search for this flight from Heathrow to Pasadena, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Pasadena from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Yes! Start tracking prices for Heathrow to Pasadena flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from London Heathrow Airport to Pasadena from £342

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Pasadena

Cheapest flights from Heathrow to PasadenaExplore the most affordable flight options available from Heathrow to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Explore the most affordable flight options available from Heathrow to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Best flights from Heathrow to PasadenaDiscover carefully curated flight deals from Heathrow to Pasadena that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 March 2026.

Discover carefully curated flight deals from Heathrow to Pasadena that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 March 2026.

Direct flights from Heathrow to PasadenaExplore direct flight options from Heathrow to Pasadena based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 March 2026.

Explore direct flight options from Heathrow to Pasadena based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 March 2026.

Last-minute flights from Heathrow to PasadenaDiscover last-minute flight deals from Heathrow to Pasadena. Data last updated 19 March 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Pasadena. Data last updated 19 March 2026 and is based on user searches.

One-way flights from Heathrow to PasadenaSearch for one-way flight options from Heathrow to Pasadena. Find affordable one-way fares based on user searches. Data last updated 19 March 2026.

Search for one-way flight options from Heathrow to Pasadena. Find affordable one-way fares based on user searches. Data last updated 19 March 2026.

Find flight deals from Heathrow to Pasadena

Keep the following information in mind while searching for Heathrow to Pasadena flight deals. Data was last updated 19 March 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Pasadena

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

Cheapflights Insights

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

How far ahead should I book a flight from London Heathrow Airport to Pasadena?

Use this chart to determine the optimal time to book a return flight from Heathrow to Pasadena. Price data was last updated on 13 March 2026.

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

What is the cheapest time of day to fly from LHR to P4S?

Find hourly flight availability from Heathrow to Pasadena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 March 2026.

Weekly flight availability from London Heathrow Airport to Pasadena

Explore weekly flight availability from Heathrow to Pasadena. 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 19 March 2026.

How much does it cost for a return flight from London Heathrow Airport to Pasadena?

Reviews of airlines servicing Pasadena

Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM,Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's 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 Pasadena. 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 Pasadena?

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

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

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

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

How can I find direct flights from Heathrow to Pasadena?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Pasadena

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Complete your trip

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Direct flights to California

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Search flights from Heathrow to Pasadena by cabin class

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Heathrow and Pasadena flights

Browse other Heathrow and Pasadena flight options. Last updated on 19 March 2026.

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Cheapest flights from Heathrow to Pasadena
Explore the most affordable flight options available from Heathrow to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Best flights from Heathrow to Pasadena
Discover carefully curated flight deals from Heathrow to Pasadena that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 March 2026.

Direct flights from Heathrow to Pasadena
Explore direct flight options from Heathrow to Pasadena based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 March 2026.

Last-minute flights from Heathrow to Pasadena
Discover last-minute flight deals from Heathrow to Pasadena. Data last updated 19 March 2026 and is based on user searches.

One-way flights from Heathrow to Pasadena
Search for one-way flight options from Heathrow to Pasadena. Find affordable one-way fares based on user searches. Data last updated 19 March 2026.