Cheap flights from London Heathrow Airport to Pasadena from £234

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
3 Sep — 10 Sep1
1 adult

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 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 29 August 2025.

Round-trip from

£369

One-way from

£234

Popular in

July

Cheapest in

September

Average price

£603
Virgin Atlantic
  • Virgin Atlantic
  • 16/9-25/9
  • Nonstop
  • 21h 50m total
  • London to Pasadena
LEVEL
  • LEVEL
  • 3/12
  • 1 total stop
  • 32h 20m total
  • London to Pasadena
Highest demand for flights based on searches. 14% potential increase in price (£63 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 August 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 August 2025.

Tue 16/909:55LHR - LAX
Nonstop11h 20mVirgin Atlantic
Thu 25/920:05LAX - LHR
Nonstop10h 30mVirgin Atlantic
Deal found 28/8£369
Thu 4/906:30LHR - LAX
1 stop14h 30mUnited Airlines
Mon 15/916:13LAX - LHR
1 stop12h 07mUnited Airlines
Deal found 28/8£369
Thu 11/908:40LHR - LAX
2 stops19h 00mAir Canada
Sat 27/912:05LAX - LHR
1 stop13h 30mAir Canada
Deal found 28/8£370
Fri 12/908:40LHR - LAX
1 stop15h 50mMultiple Airlines
Sat 20/916:40LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 27/8£371
Sat 6/917:30LHR - LAX
Nonstop11h 15mVirgin Atlantic
Mon 22/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Deal found 27/8£372
Sat 20/919:50LHR - LAX
1 stop26h 35mTAP AIR PORTUGAL
Fri 3/1016:40LAX - LHR
1 stop17h 05mTAP AIR PORTUGAL
Deal found 27/8£372
Sat 20/908:30LHR - LAX
1 stop16h 25mUnited Airlines
Fri 3/1008:05LAX - LHR
1 stop17h 30mUnited Airlines
Deal found 28/8£373
Sun 14/906:30LHR - LAX
1 stop14h 30mMultiple Airlines
Wed 24/916:40LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 28/8£374
Fri 26/906:00LHR - LAX
1 stop15h 05mMultiple Airlines
Sun 5/1018:40LAX - LHR
1 stop14h 00mMultiple Airlines
Deal found 28/8£375
Thu 6/1107:05LHR - LAX
2 stops17h 55mScandinavian Airlines
Tue 11/1119:30LAX - LHR
2 stops18h 05mScandinavian Airlines
Deal found 28/8£376
Sat 20/914:05LHR - LAX
1 stop15h 30mAir Canada
Fri 3/1006:00LAX - LHR
2 stops19h 35mAir Canada
Deal found 28/8£377

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 August 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

Thu 11/9

08:40-19:40

2 stops19h 00m

Los Angeles

Sat 27/9

12:05-09:35

1 stop13h 30m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 28/9

09:50-18:25

1 stop16h 35m

Los Angeles

Sat 11/10

20:15-20:20

1 stop16h 05m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 11/2

06:30-13:05

1 stop14h 35m

Los Angeles

Tue 24/2

08:45-07:10

1 stop14h 25m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 22/2

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 25/3

08:45-06:20

1 stop14h 35m

£372

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

07:40-15:15

1 stop15h 35m

Los Angeles

Fri 6/2

19:00-13:30

Nonstop10h 30m

£373

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 19/10

06:00-14:25

1 stop16h 25m

Los Angeles

Sat 25/10

16:40-22:35

1 stop21h 55m

£373

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 13/9

07:25-15:15

1 stop15h 50m

Los Angeles

Fri 19/9

06:00-07:25

1 stop17h 25m

£373

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 26/9

06:30-16:08

2 stops17h 38m

Los Angeles

Fri 3/10

06:00-09:35

2 stops19h 35m

£374

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/2

06:30-13:05

1 stop14h 35m

Los Angeles

Mon 23/2

08:10-07:25

1 stop15h 15m

£374

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/2

06:30-13:05

1 stop14h 35m

Los Angeles

Thu 19/2

12:40-11:15

1 stop14h 35m

£374

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 21 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 22 August 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, 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 August 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 August 2025.

The most flights from LHR to P4S are scheduled on a Wednesday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (46 on average).

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

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 August 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

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 14h 35m. Air Canada provides one of the quickest options available for as low as £370. 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 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: Aeromexico (86%), KLM (82%), Air France( 82%).

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

    While on average a flight from London Heathrow Airport to Pasadena is generally £2,533, our data shows the cheapest flight currently is £399. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £290 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

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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 August 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£278Average£461FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£290Average£386FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£333Average£548FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
DeltaCheapest£334Average£537FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£345Average£481FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£352Average£475FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£352Average£458FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£353Average£607FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Austrian AirlinesCheapest£354Average£471FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
United AirlinesCheapest£358Average£549FlexibilityNo cancel feeOn-time69%
Search United Airlines 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?

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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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