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Cheap flights from London Heathrow Airport to Pasadena from £439

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
16 Jul — 23 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in February or September, booked 35 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Heathrow to Pasadena

Enter your travel dates to find the best prices.

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 June 2026.

Sat 22/813:05
LHR
-
LAX
Nonstop11h 05m
Lufthansa
Mon 31/808:15
LAX
-
LHR
1 stop16h 15m
Lufthansa
Deal found 16/6£477
Tue 14/709:15
LHR
-
LAX
1 stop21h 40m
Iberia
Tue 21/716:15
LAX
-
LHR
Nonstop10h 35m
Iberia
Deal found 16/6£479
Tue 14/708:20
LHR
-
LAX
Nonstop11h 20m
British Airways
Fri 24/716:15
LAX
-
LHR
Nonstop10h 35m
British Airways
Deal found 16/6£481
Thu 2/716:55
LHR
-
LAX
Nonstop11h 20m
Iberia
Mon 3/818:10
LAX
-
LHR
Nonstop10h 35m
Iberia
Deal found 16/6£482
Thu 2/713:40
LHR
-
LAX
1 stop17h 58m
United Airlines
Sat 8/807:30
LAX
-
LHR
1 stop15h 55m
United Airlines
Deal found 16/6£482
Tue 14/708:20
LHR
-
LAX
Nonstop11h 20m
Multiple Airlines
Fri 24/708:05
LAX
-
LHR
1 stop18h 15m
Multiple Airlines
Deal found 16/6£484
Sat 4/709:15
LHR
-
LAX
1 stop23h 35m
Iberia
Mon 3/818:10
LAX
-
LHR
Nonstop10h 35m
Iberia
Deal found 16/6£485
Tue 18/814:30
LHR
-
LAX
Nonstop11h 15m
Virgin Atlantic
Sun 23/817:51
LAX
-
LHR
1 stop13h 44m
Virgin Atlantic
Deal found 16/6£486
Thu 13/813:05
LHR
-
LAX
Nonstop11h 05m
Lufthansa
Sat 22/815:35
LAX
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 16/6£488
Tue 8/908:40
LHR
-
LAX
1 stop14h 05m
Delta
Sat 12/923:55
LAX
-
LHR
1 stop22h 25m
Delta
Deal found 16/6£489
Wed 15/710:55
LHR
-
LAX
1 stop20h 47m
Virgin Atlantic
Thu 13/811:08
LAX
-
LHR
1 stop18h 07m
Virgin Atlantic
Deal found 16/6£490

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 16 June 2026.

Round-trip from

£485

One-way from

£439

Popular in

July

Cheapest in

February

Average price

£558
KLM
  • KLM
  • 16/8-31/8
  • 1 total stop
  • 24h 10m total
  • London to Pasadena
Search Deals
British Airways
  • British Airways
  • 12/8
  • 2 total stops
  • 21h 32m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 2026.
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

Cheapest return flight
Fastest return journey

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 14/8

18:15-21:25

Nonstop11h 10m

Los Angeles

Tue 25/8

23:15-17:35

Nonstop10h 20m

£507

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 19/9

06:30-11:50

1 stop13h 20m

Los Angeles

Fri 25/9

09:30-06:25

1 stop12h 55m

£516

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 1/7

13:05-16:10

Nonstop11h 05m

Los Angeles

Fri 28/8

07:00-09:40

1 stop18h 40m

£546

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 29/7

08:40-16:30

1 stop15h 50m

Los Angeles

Sat 8/8

15:35-10:10

Nonstop10h 35m

£562

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 21/11

06:40-17:00

2 stops18h 20m

Los Angeles

Sat 5/12

19:30-09:35

2 stops30h 05m

£568

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 30/6

08:20-11:30

Nonstop11h 10m

Los Angeles

Mon 20/7

16:15-10:50

Nonstop10h 35m

£580

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 15/8

13:05-16:10

Nonstop11h 05m

Los Angeles

Mon 23/11

18:55-13:30

Nonstop10h 35m

£587

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 26/6

08:40-16:30

1 stop15h 50m

Los Angeles

Wed 9/9

11:15-16:25

2 stops21h 10m

£608

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 18/8

07:25-18:03

2 stops18h 38m

Los Angeles

Fri 21/8

10:10-07:55

1 stop13h 45m

£625

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 21/7

10:30-13:50

Nonstop11h 20m

Los Angeles

Thu 30/7

18:10-12:45

Nonstop10h 35m

£710

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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

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 June 2026.

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

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 June 2026.

The most flights from LHR to P4S are scheduled on a Monday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (53 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 16 June 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM,Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,528 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
690 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
United Airlines
7.4
Good
9,842 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
8,066 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,051 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 11h 05m. KLM provides one of the quickest options available for as low as £546. 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 cheapest airlines to fly from London Heathrow Airport to Pasadena one-way?

    £170 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Norse Atlantic UK and TAP AIR PORTUGAL, with prices starting from £200 and £246, 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: Malaysia Airlines (94%), Royal Jordanian (89%), KLM( 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 £2,167, our data shows the cheapest flight currently is £347. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £376 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.

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.
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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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£296Average£407FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£306Average£559FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Scandinavian AirlinesCheapest£314Average£428FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£332Average£443FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£336Average£560FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£352Average£479FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£352Average£472FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£357Average£487FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Virgin AtlanticCheapest£361Average£470FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£361Average£589FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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