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Cheap flights from London Heathrow Airport to Pasadena from £236

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in March or February, booked 12 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 29 April 2025.

Round-trip from

£374

One-way from

£236

Popular in

August

Cheapest in

March

Average price

£471
SWISS
  • SWISS
  • 9/5-16/5
  • 2 total stops
  • 31h 35m total
  • London to Pasadena
13/5
  • 13/5
  • 1 total stop
  • 36h 00m total
  • London to Pasadena
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in April 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 29 April 2025.

Fri 9/507:25LHR - LAX
1 stop15h 50mMultiple Airlines
Fri 16/519:35LAX - LHR
1 stop15h 45mMultiple Airlines
Deal found 28/4£374
Tue 9/906:55LHR - LAX
1 stop16h 20mLufthansa
Tue 16/916:40LAX - LHR
Nonstop10h 30mLufthansa
Deal found 28/4£377
Tue 13/508:45LHR - LAX
2 stops19h 05mAir Canada
Sun 18/508:05LAX - LHR
1 stop17h 55mAir Canada
Deal found 29/4£379
Wed 14/510:30LHR - LAX
1 stop15h 55mBritish Airways
Thu 22/521:30LAX - LHR
Nonstop10h 35mBritish Airways
Deal found 28/4£380
Wed 7/508:40LHR - LAX
1 stop15h 50mUnited Airlines
Wed 14/513:00LAX - LHR
1 stop12h 40mUnited Airlines
Deal found 27/4£388
Mon 12/506:00LHR - LAX
2 stops19h 27mSWISS
Mon 19/516:30LAX - LHR
2 stops31h 25mSWISS
Deal found 28/4£394
Wed 10/914:45LHR - LAX
1 stop29h 05mVirgin Atlantic
Tue 16/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Deal found 28/4£395
Sat 8/1110:20LHR - LAX
1 stop14h 40mScandinavian Airlines
Sun 16/1119:30LAX - LHR
1 stop14h 10mScandinavian Airlines
Deal found 28/4£401
Thu 19/613:50LHR - LAX
1 stop16h 27mAir France
Fri 11/722:50LAX - LHR
Nonstop10h 25mAir France
Deal found 29/4£403
Thu 11/909:55LHR - LAX
Nonstop11h 20mDelta
Tue 23/915:45LAX - LHR
Nonstop10h 30mDelta
Deal found 28/4£414
Fri 5/906:00LHR - LAX
1 stop15h 05mAustrian Airlines
Tue 16/916:40LAX - LHR
Nonstop10h 30mAustrian Airlines
Deal found 28/4£418
Sun 4/512:15LHR - LAX
1 stop35h 56mFinnair
Sun 11/519:25LAX - LHR
1 stop31h 25mFinnair
Deal found 29/4£428

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 29 April 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

Fri 9/5

07:25-15:15

1 stop15h 50m

Los Angeles

Fri 16/5

19:35-19:20

1 stop15h 45m

£374

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 9/9

06:55-15:15

1 stop16h 20m

Los Angeles

Tue 16/9

16:40-11:10

Nonstop10h 30m

£377

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 13/5

08:45-19:50

2 stops19h 05m

Los Angeles

Sun 18/5

08:05-10:00

1 stop17h 55m

£379

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 14/5

10:30-18:25

1 stop15h 55m

Los Angeles

Thu 22/5

21:30-16:05

Nonstop10h 35m

£380

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 9/5

08:40-16:30

1 stop15h 50m

Los Angeles

Sat 17/5

10:47-10:25

1 stop15h 38m

£390

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 12/5

06:00-17:27

2 stops19h 27m

Los Angeles

Mon 19/5

16:30-07:55

2 stops31h 25m

£394

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 10/9

14:45-11:50

1 stop29h 05m

Los Angeles

Tue 16/9

22:50-17:15

Nonstop10h 25m

£395

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 18/9

06:40-16:20

1 stop17h 40m

Los Angeles

Thu 9/10

19:30-21:40

1 stop18h 10m

£400

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 9/9

09:30-17:05

1 stop15h 35m

Los Angeles

Wed 17/9

20:05-14:35

Nonstop10h 30m

£403

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 19/6

13:50-22:17

1 stop16h 27m

Los Angeles

Fri 11/7

22:50-17:15

Nonstop10h 25m

£403

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 19 results
1
2

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 25 April 2025.

Booking 12 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £575). 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 29 April 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 29 April 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 (43 on average).

Rainfall in Pasadena by month

Plan your trip to Pasadena by taking into account the average rainfall totals by month.

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.

Temperature in Pasadena by month

Plan your trip to Pasadena by taking into account the average temperature totals by month.

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).

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 29 April 2025.
See what other customers who have flown with Delta, KLM and Finnair from London to Pasadena have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

    £245 is the cheapest one-way deal found within the past few days, from Vueling. You may also be able to find cheap deals on TAP AIR PORTUGAL and WestJet, with prices starting from £283 and £317, 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: United Airlines (94%), Air Canada (88%), Austrian Airlines( 88%).

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

    While on average a flight from London Heathrow Airport to Pasadena is generally £1,699, our data shows the cheapest flight currently is £375. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £356 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £575). 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

Browse thousands of different options on Cheapflights for your next trip

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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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£279Average£400FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£293Average£542FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
DeltaCheapest£324Average£526FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Austrian AirlinesCheapest£351Average£477FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air FranceCheapest£357Average£464FlexibilityNo cancel feeOn-time77%
Search Air France flights
Brussels AirlinesCheapest£360Average£500FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£360Average£500FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£361Average£520FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£368Average£511FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£369Average£483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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!

Can Cheapflights find flights from Heathrow to Pasadena with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Pasadena with no change fees.

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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