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

A quick flight from London Heathrow Airport to Pasadena can take about 15h 35m. United Airlines provides one of the quickest options available for as low as £356. London Heathrow Airport and Pasadena are separated by a distance of 5439 mi.

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

£163 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 TAP AIR PORTUGAL and Scandinavian Airlines, with prices starting from £245 and £249, 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 £2,647, our data shows the cheapest flight currently is £345. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £308 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 (93%), Royal Jordanian (87%), Air Canada( 87%).

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.

£338+ Cheap Flights from London Heathrow Airport to Pasadena

Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in September or February, booked 7 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 20 February 2026.

Mon 9/307:40

LHR

LAX

1 stop15h 35m

Multiple Airlines

Mon 23/318:10

LAX

LHR

1 stop34h 40m

Multiple Airlines

Deal found 19/2£348

Wed 25/209:00

LHR

LAX

1 stop15h 35m

Multiple Airlines

Sat 7/319:00

LAX

LHR

Nonstop10h 30m

Multiple Airlines

Deal found 18/2£349

Mon 2/306:00

LHR

LAX

1 stop18h 35m

Multiple Airlines

Mon 16/320:00

LAX

LHR

Nonstop10h 30m

Multiple Airlines

Deal found 17/2£349

Fri 6/309:00

LHR

LAX

1 stop15h 35m

Multiple Airlines

Wed 18/308:45

LAX

LHR

1 stop14h 10m

Multiple Airlines

Deal found 17/2£350

Thu 26/207:40

LHR

LAX

1 stop15h 35m

Lufthansa

Wed 11/320:00

LAX

LHR

Nonstop10h 30m

Lufthansa

Deal found 17/2£351

Mon 23/209:00

LHR

LAX

1 stop15h 35m

Multiple Airlines

Mon 2/319:00

LAX

LHR

Nonstop10h 30m

Multiple Airlines

Deal found 16/2£352

Mon 2/307:40

LHR

LAX

1 stop15h 35m

Multiple Airlines

Sun 8/320:00

LAX

LHR

Nonstop10h 30m

Multiple Airlines

Deal found 18/2£352

Thu 26/209:00

LHR

LAX

1 stop15h 35m

Multiple Airlines

Wed 11/308:45

LAX

LHR

1 stop14h 10m

Multiple Airlines

Deal found 18/2£353

Find flight deals from Heathrow to Pasadena

Round-trip from	£348
One-way from	£338
Popular in	July
Cheapest in	September
Average price	£416

Air Canada
9/3-23/3
2 total stops
50h 15m total
London to Pasadena

Search Deals

15/6
1 total stop
27h 00m total
London to Pasadena

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£45 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 February 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

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 11/3

20:00-13:30

Nonstop10h 30m

£356

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Fri 24/4

11:00-09:40

1 stop14h 40m

£356

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sun 8/3

06:30-11:50

1 stop22h 20m

£356

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 17/3

09:00-17:35

1 stop15h 35m

Los Angeles

Tue 24/3

20:00-13:30

Nonstop10h 30m

£358

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 22/4

08:40-16:30

1 stop15h 50m

Los Angeles

Sun 26/4

15:30-10:10

Nonstop10h 40m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 23/4

07:25-15:15

1 stop15h 50m

Los Angeles

Thu 7/5

15:30-10:10

Nonstop10h 40m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 10/5

07:25-15:15

1 stop15h 50m

Los Angeles

Wed 20/5

07:15-07:25

1 stop16h 10m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 15/4

08:40-16:30

1 stop15h 50m

Los Angeles

Thu 23/4

12:55-12:20

1 stop15h 25m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 13/4

06:55-15:15

1 stop16h 20m

Los Angeles

Mon 20/4

15:30-10:10

Nonstop10h 40m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 16/4

07:25-15:15

1 stop15h 50m

Los Angeles

Sun 19/4

15:30-10:10

Nonstop10h 40m

£374

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 19 results

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 7 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 £329). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £388). 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 Wednesday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 on average).

Reviews of airlines servicing Pasadena

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

KLM

7.7

Good

1,458 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

7.7

Good

1,458 reviews

KLM

7.7

Good

1,458 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

679 reviews

KLM

7.7

Good

1,458 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

Air France

7.4

Good

1,533 reviews

KLM

7.7

Good

1,458 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

7,795 reviews

KLM

7.7

Good

1,458 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

7,757 reviews

KLM

7.7

Good

1,458 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 15h 35m. United Airlines provides one of the quickest options available for as low as £356. London Heathrow Airport and Pasadena are separated by a distance of 5439 mi.
What are the cheapest airlines to fly from London Heathrow Airport to Pasadena one-way?
£163 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 TAP AIR PORTUGAL and Scandinavian Airlines, with prices starting from £245 and £249, 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 (93%), Royal Jordanian (87%), Air Canada( 87%).
What are the cheapest flights from London Heathrow Airport to Pasadena?
While on average a flight from London Heathrow Airport to Pasadena is generally £2,647, our data shows the cheapest flight currently is £345. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £308 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 £329). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £388). 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
SWISS	Cheapest£276	Average£396	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Finnair	Cheapest£278	Average£465	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Norse Atlantic UK	Cheapest£305	Average£533	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Brussels Airlines	Cheapest£332	Average£477	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Aer Lingus	Cheapest£332	Average£487	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£335	Average£523	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Scandinavian Airlines	Cheapest£340	Average£458	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Austrian Airlines	Cheapest£347	Average£481	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
KLM	Cheapest£352	Average£523	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£354	Average£502	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 £338

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 15/6. 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 20 February 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 20 February 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 20 February 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 20 February 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 20 February 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 20 February 2026.

Last-minute flights from Heathrow to PasadenaDiscover last-minute flight deals from Heathrow to Pasadena. Data last updated 20 February 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Pasadena. Data last updated 20 February 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 20 February 2026.

Search for one-way flight options from Heathrow to Pasadena. Find affordable one-way fares based on user searches. Data last updated 20 February 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 20 February 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 18 February 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 20 February 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 20 February 2026.

Reviews of airlines servicing Pasadena

Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM, Virgin Atlantic, andAir France. 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Pasadena

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Complete your trip

Complete your trip to Pasadena by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Heathrow to Pasadena by cabin class

Find flights from Heathrow to Pasadena, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Pasadena flights

Browse other Heathrow and Pasadena flight options. Last updated on 20 February 2026.

Other flights from Heathrow

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Heathrow to Pasadena flights

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Top 10 airlines flying from Heathrow to Pasadena

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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 20 February 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 20 February 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 20 February 2026.

Last-minute flights from Heathrow to Pasadena
Discover last-minute flight deals from Heathrow to Pasadena. Data last updated 20 February 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 20 February 2026.