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Cheap flights from London Heathrow Airport to Pasadena from £197

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
21 Apr — 28 Apr1
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 16 April 2025.

Round-trip from

£371

One-way from

£213

Popular in

August

Cheapest in

March

Average price

£477
Lufthansa
  • Lufthansa
  • 26/4-3/5
  • 2 total stops
  • 29h 45m total
  • London to Pasadena
7/5
  • 7/5
  • 1 total stop
  • 35h 50m total
  • London to Pasadena
Highest demand for flights based on searches. 13% potential increase in price (£61 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 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 16 April 2025.

Sat 26/407:25LHR - LAX
1 stop15h 50mLufthansa
Sat 3/508:25LAX - LHR
1 stop13h 55mLufthansa
Deal found 16/4£371
Sat 3/509:30LHR - LAX
1 stop18h 20mAir Canada
Wed 21/512:05LAX - LHR
1 stop13h 55mAir Canada
Deal found 15/4£375
Fri 9/508:40LHR - LAX
1 stop15h 50mMultiple Airlines
Sun 11/516:35LAX - LHR
Nonstop10h 35mMultiple Airlines
Deal found 15/4£377
Sun 4/513:35LHR - LAX
Nonstop11h 30mVirgin Atlantic
Mon 19/522:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Deal found 15/4£378
Mon 5/506:00LHR - LAX
1 stop15h 05mAustrian Airlines
Thu 15/516:35LAX - LHR
Nonstop10h 35mAustrian Airlines
Deal found 14/4£382
Fri 9/508:40LHR - LAX
1 stop15h 50mUnited Airlines
Sun 11/522:40LAX - LHR
1 stop14h 00mUnited Airlines
Deal found 14/4£387
Thu 1/506:00LHR - LAX
1 stop18h 30mSWISS
Thu 8/519:35LAX - LHR
1 stop18h 10mSWISS
Deal found 15/4£391
Fri 2/508:40LHR - LAX
1 stop14h 10mKLM
Wed 7/522:50LAX - LHR
Nonstop10h 25mKLM
Deal found 15/4£412
Fri 12/917:30LHR - LAX
Nonstop11h 15mDelta
Thu 25/920:05LAX - LHR
Nonstop10h 30mDelta
Deal found 15/4£415
Wed 15/1019:30LHR - LAX
1 stop28h 50mScandinavian Airlines
Wed 5/1119:30LAX - LHR
1 stop14h 10mScandinavian Airlines
Deal found 15/4£427
Tue 22/414:45LHR - LAX
Nonstop11h 20mBritish Airways
Sat 26/400:59LAX - LHR
1 stop23h 06mBritish Airways
Deal found 15/4£428
Mon 21/415:40LHR - LAX
1 stop31h 37mFinnair
Sun 27/423:59LAX - LHR
1 stop22h 26mFinnair
Deal found 15/4£436

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 16 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

Sat 26/4

07:25-15:15

1 stop15h 50m

Los Angeles

Sat 3/5

08:25-06:20

1 stop13h 55m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 3/5

09:30-19:50

1 stop18h 20m

Los Angeles

Wed 21/5

12:05-10:00

1 stop13h 55m

£375

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 9/5

08:40-16:30

1 stop15h 50m

Los Angeles

Sun 11/5

16:35-11:10

Nonstop10h 35m

£377

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 4/5

13:35-17:05

Nonstop11h 30m

Los Angeles

Mon 19/5

22:50-17:15

Nonstop10h 25m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 5/5

06:00-13:05

1 stop15h 05m

Los Angeles

Thu 15/5

16:35-11:10

Nonstop10h 35m

£382

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 9/5

08:40-16:30

1 stop15h 50m

Los Angeles

Sun 11/5

22:40-20:40

1 stop14h 00m

£387

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 1/5

06:00-16:30

1 stop18h 30m

Los Angeles

Thu 8/5

19:35-21:45

1 stop18h 10m

£391

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 3/5

16:55-20:15

Nonstop11h 20m

Los Angeles

Wed 21/5

20:05-14:35

Nonstop10h 30m

£410

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 2/5

08:40-14:50

1 stop14h 10m

Los Angeles

Wed 7/5

22:50-17:15

Nonstop10h 25m

£412

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 12/9

17:30-20:45

Nonstop11h 15m

Los Angeles

Thu 25/9

20:05-14:35

Nonstop10h 30m

£415

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 20 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 11 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 16 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 16 April 2025.

The most flights from LHR to P4S are scheduled on a Friday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (52 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 16 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.

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

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?

    £282 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 Vueling and Aer Lingus, with prices starting from £351 and £352, 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%), KLM (90%), Air Canada( 89%).

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

    While on average a flight from London Heathrow Airport to Pasadena is generally £1,700, our data shows the cheapest flight currently is £378. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £362 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 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£297Average£543FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
DeltaCheapest£328Average£533FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£331Average£405FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£361Average£504FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air FranceCheapest£361Average£470FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£364Average£498FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£364Average£528FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£365Average£527FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£373Average£489FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£373Average£529FlexibilityNo cancel feeOn-time70%
Search British Airways 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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