Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Pasadena from £375

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 1/9. 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
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in February or September, booked 89 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 4 August 2026.

Wed 19/806:30
LHR
-
LAX
1 stop14h 40m
Lufthansa
Sun 23/815:35
LAX
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 3/8£434
Tue 3/1109:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Sat 14/1118:55
LAX
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 31/7£435
Fri 23/1006:55
LHR
-
LAX
1 stop16h 20m
United Airlines
Fri 30/1018:10
LAX
-
LHR
1 stop34h 40m
United Airlines
Deal found 31/7£436
Fri 27/1109:00
LHR
-
LAX
1 stop15h 35m
United Airlines
Sun 29/1106:00
LAX
-
LHR
1 stop17h 25m
United Airlines
Deal found 29/7£436
Wed 21/1008:40
LHR
-
LAX
1 stop15h 50m
United Airlines
Sat 31/1010:55
LAX
-
LHR
1 stop13h 30m
United Airlines
Deal found 30/7£437
Tue 10/1109:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Tue 17/1108:25
LAX
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 3/8£438
Wed 21/1008:20
LHR
-
LAX
Nonstop11h 10m
British Airways
Wed 28/1019:25
LAX
-
LHR
Nonstop10h 40m
British Airways
Deal found 30/7£439
Fri 4/908:40
LHR
-
LAX
1 stop15h 50m
SWISS
Tue 1/1219:10
LAX
-
LHR
1 stop14h 40m
SWISS
Deal found 29/7£439
Mon 31/812:00
LHR
-
LAX
1 stop14h 25m
British Airways
Mon 7/920:10
LAX
-
LHR
1 stop13h 10m
British Airways
Deal found 1/8£440
Thu 12/1107:40
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Tue 17/1118:55
LAX
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 3/8£441
Tue 1/906:00
LHR
-
LAX
1 stop18h 30m
SWISS
Wed 30/919:35
LAX
-
LHR
1 stop15h 45m
SWISS
Deal found 30/7£442
Thu 3/906:55
LHR
-
LAX
1 stop16h 20m
Lufthansa
Tue 1/1217:30
LAX
-
LHR
1 stop14h 20m
Lufthansa
Deal found 30/7£442

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 4 August 2026.

Round-trip from

£434

One-way from

£375

Popular in

December

Cheapest in

February

Average price

£534
United Airlines
  • United Airlines
  • 18/9-25/9
  • 1 total stop
  • 27h 20m total
  • London to Pasadena
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 43h 59m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 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 August 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 4 August 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

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 7/9

06:55-15:15

1 stop16h 20m

Los Angeles Los Angeles

Mon 21/9

15:40-10:10

Nonstop10h 30m

£450

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 14/9

12:00-18:25

1 stop14h 25m

Los Angeles Los Angeles

Mon 21/9

20:55-15:25

Nonstop10h 30m

£459

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 23/10

08:20-11:35

Nonstop11h 15m

Los Angeles Los Angeles

Fri 30/10

18:05-11:40

Nonstop10h 35m

£462

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/11

07:40-15:15

1 stop15h 35m

Los Angeles Los Angeles

Tue 17/11

17:30-15:50

1 stop14h 20m

£463

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 11/11

15:20-18:45

Nonstop11h 25m

Los Angeles Los Angeles

Wed 18/11

08:15-05:55

1 stop13h 40m

£465

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 18/11

15:20-18:45

Nonstop11h 25m

Los Angeles Los Angeles

Wed 18/11

23:59-07:40

1 stop23h 41m

£471

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 13/9

08:20-11:45

Nonstop11h 25m

Los Angeles Los Angeles

Sun 20/9

10:25-07:40

1 stop13h 15m

£475

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 17/8

08:20-11:45

Nonstop11h 25m

Los Angeles Los Angeles

Mon 24/8

09:02-06:20

1 stop13h 18m

£489

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 19/10

13:05-16:25

Nonstop11h 20m

Los Angeles Los Angeles

Sun 21/3

22:35-07:25

1 stop25h 50m

£497

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 18/8

11:05-20:25

1 stop17h 20m

Los Angeles Los Angeles

Wed 26/8

05:30-06:45

1 stop17h 15m

£532

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 24 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 4 August 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 4 August 2026.

The most flights from LHR to P4S are scheduled on a Sunday (57 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (34 on average).

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

Airfare is below average for this route at the moment.
London Heathrow Airport to Pasadena flights typically cost between £463 and £614 in September.
The cheapest return price found within the last 5 days was £434 on United Airlines (18 Sept–25 Sept).

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 4 August 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as Virgin Atlantic,United Airlines, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
694 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,058 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Iberia
7.0
Good
3,267 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,176 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,149 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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 25m. United Airlines provides one of the quickest options available for as low as £459. 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 TAP AIR PORTUGAL and SWISS, with prices starting from £246 and £306, 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 (100%), Malaysia Airlines (92%), Fiji Airways( 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 £2,210, our data shows the cheapest flight currently is £310. When looking at the most popular route, (London Heathrow - Los Angeles Los Angeles), you can expect to pay £346 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Luton to Los Angeles flights
Heathrow to Ontario flights
Gatwick to Las Vegas flights
Gatwick to San Francisco flights
London City to Las Vegas flights
London City to San Francisco flights
Stansted to Las Vegas flights
Stansted to San Francisco flights
Luton to San Francisco flights
Heathrow to San Jose flights
Heathrow to San Diego flights
Heathrow to Santa Ana flights
Luton to Las Vegas flights
Gatwick to Ontario flights
Gatwick to San Diego flights
Heathrow to Burbank flights
Gatwick to Oakland flights
London City to San Diego flights
Stansted to San Diego flights
Gatwick to Burbank flights
Heathrow to Long Beach flights
Heathrow to Sacramento flights
Gatwick to San Jose flights
Gatwick to Santa Ana flights
Heathrow to Oakland flights
Southend to Los Angeles flights
Gatwick to Sacramento flights
London City to San Jose flights
London City to Ontario flights
London City to Santa Ana flights
Heathrow to Fresno flights
London City to Sacramento flights
Heathrow to Reno flights
Stansted to Sacramento flights
Stansted to San Jose flights
Heathrow to Santa Rosa flights
London City to Oakland flights
Heathrow to Palm Springs flights
Southend to Las Vegas flights
Southend to San Francisco flights
Heathrow to Medford flights
London City to Burbank flights
Gatwick to Palm Springs flights
Gatwick to Reno flights

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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£306Average£587FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£332Average£454FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£339Average£462FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£339Average£584FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£342Average£460FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£345Average£470FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
SWISSCheapest£346Average£526FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£351Average£486FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£352Average£481FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£362Average£588FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.