Cheap flights from London Heathrow Airport to Pasadena from £237

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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

Cheap flight deals from Heathrow to Pasadena

Keep the following information in mind while searching for Heathrow to Pasadena flight deals. Data was last updated 17 September 2025.

Round-trip from

£349

One-way from

£237

Popular in

July

Cheapest in

September

Average price

£405
Virgin Atlantic
  • Virgin Atlantic
  • 6/10-15/10
  • 1 total stop
  • 33h 25m total
  • London to Pasadena
LEVEL
  • LEVEL
  • 13/12
  • 1 total stop
  • 29h 20m total
  • London to Pasadena
Highest demand for flights based on searches. 14% potential increase in price (£61 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Heathrow to Pasadena

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 17 September 2025.

Mon 6/1020:55LHR - LAX
1 stop22h 55mVirgin Atlantic
Wed 15/1015:30LAX - LHR
Nonstop10h 30mVirgin Atlantic
Deal found 15/9£349
Tue 23/906:30LHR - LAX
1 stop13h 20mVirgin Atlantic
Tue 30/920:05LAX - LHR
Nonstop10h 30mVirgin Atlantic
Deal found 15/9£350
Tue 7/1006:30LHR - LAX
1 stop13h 20mVirgin Atlantic
Fri 17/1015:30LAX - LHR
Nonstop10h 30mVirgin Atlantic
Deal found 16/9£350
Thu 25/906:55LHR - LAX
1 stop16h 20mLufthansa
Thu 9/1016:40LAX - LHR
Nonstop10h 30mLufthansa
Deal found 14/9£352
Fri 26/906:00LHR - LAX
1 stop15h 05mMultiple Airlines
Fri 10/1008:25LAX - LHR
1 stop14h 50mMultiple Airlines
Deal found 16/9£353
Mon 22/906:00LHR - LAX
1 stop18h 30mMultiple Airlines
Wed 8/1007:00LAX - LHR
1 stop14h 55mMultiple Airlines
Deal found 16/9£353
Thu 30/1009:00LHR - LAX
1 stop15h 35mMultiple Airlines
Thu 6/1119:00LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 15/9£354
Thu 30/1008:50LHR - LAX
1 stop17h 40mAer Lingus
Fri 7/1120:15LAX - LHR
1 stop12h 35mAer Lingus
Deal found 15/9£355
Thu 6/1112:10LHR - LAX
1 stop14h 20mAer Lingus
Thu 13/1120:15LAX - LHR
1 stop16h 50mAer Lingus
Deal found 14/9£356

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Pasadena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Pasadena that are best for you.

Fly from

Heathrow

Fly to

Pasadena

Route

Depart

Return

Price

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 8/11

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 12/11

19:00-13:30

Nonstop10h 30m

£359

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 10/3

09:00-17:35

1 stop15h 35m

Los Angeles

Wed 25/3

20:00-13:30

Nonstop10h 30m

£360

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 30/10

09:00-17:35

1 stop15h 35m

Los Angeles

Wed 5/11

00:25-05:55

1 stop21h 30m

£360

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 6/2

09:00-16:35

1 stop15h 35m

Los Angeles

Fri 20/2

08:45-05:55

1 stop13h 10m

£360

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 5/11

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 12/11

19:00-13:30

Nonstop10h 30m

£361

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 8/11

09:00-16:35

1 stop15h 35m

Los Angeles

Fri 14/11

00:25-05:55

1 stop21h 30m

£361

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 7/11

09:00-16:35

1 stop15h 35m

Los Angeles

Sat 8/11

00:25-05:55

1 stop21h 30m

£361

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 2/11

05:30-13:05

1 stop14h 35m

Los Angeles

Sun 9/11

19:00-13:30

Nonstop10h 30m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/3

07:40-15:15

1 stop15h 35m

Los Angeles

Wed 11/3

00:59-07:30

1 stop23h 31m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 7/3

07:40-15:15

1 stop15h 35m

Los Angeles

Tue 10/3

08:45-06:20

1 stop14h 35m

£365

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 23 results
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2
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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.
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

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 12 September 2025.

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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £573). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £811). 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?

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 17 September 2025.

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.

What is the cheapest day to fly from London Heathrow Airport to Pasadena?

Use this chart to determine the cheapest time to fly return from Heathrow to Pasadena. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Pasadena flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 17 September 2025.

The most flights from LHR to P4S are scheduled on a Monday (53 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (47 on average).

Reviews of airlines servicing Pasadena

Get insights into the airlines that provide service to Pasadena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pasadena. Reviews last updated 17 September 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM, Finnair, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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?

    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 £359. 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?

    £237 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Aer Lingus and American Airlines, with prices starting from £293 and £310, 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 (89%), Aeromexico (86%), KLM( 86%).

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

    While on average a flight from London Heathrow Airport to Pasadena is generally £2,664, our data shows the cheapest flight currently is £355. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £326 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £573). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £811). 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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Alternative routes for Heathrow to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to Pasadena

Discover the top 10 airlines that operate flights from Heathrow to Pasadena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£275Average£463FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£287Average£383FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£305Average£572FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£329Average£551FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£331Average£541FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£341Average£479FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£350Average£457FlexibilityNo cancel feeOn-time77%
Search Air France flights
Brussels AirlinesCheapest£352Average£464FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£352Average£466FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
United AirlinesCheapest£355Average£544FlexibilityNo cancel feeOn-time69%
Search United Airlines 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?

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Can Cheapflights notify me if prices for flights from Heathrow to Pasadena become cheaper?

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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