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Cheap flights from London Heathrow Airport to Pasadena from £337

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
11 Mar — 18 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in September or February, booked 7 days in advance, depart on a Wednesday or Thursday and return on a Monday

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 9 February 2026.

Tue 17/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Wed 25/219:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 7/2£345
Tue 17/207:40
LHR
-
LAX
1 stop15h 35m
Lufthansa
Mon 2/317:30
LAX
-
LHR
1 stop14h 20m
Lufthansa
Deal found 8/2£345
Fri 20/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Fri 27/214:20
LAX
-
LHR
1 stop12h 55m
Multiple Airlines
Deal found 8/2£346
Mon 16/220:05
LHR
-
LAX
1 stop28h 30m
Multiple Airlines
Mon 23/219:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 7/2£347
Thu 19/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Tue 24/217:30
LAX
-
LHR
1 stop14h 20m
Multiple Airlines
Deal found 9/2£347
Thu 19/207:40
LHR
-
LAX
1 stop15h 35m
Lufthansa
Mon 23/215:00
LAX
-
LHR
1 stop13h 50m
Lufthansa
Deal found 7/2£348
Thu 12/309:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Wed 18/308:45
LAX
-
LHR
1 stop14h 10m
Multiple Airlines
Deal found 8/2£349
Fri 20/209:00
LHR
-
LAX
1 stop15h 35m
SWISS
Mon 23/219:10
LAX
-
LHR
1 stop14h 40m
SWISS
Deal found 6/2£350
Wed 18/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Wed 4/308:40
LAX
-
LHR
1 stop14h 00m
Multiple Airlines
Deal found 5/2£350
Sat 28/207:40
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Sat 7/319:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 6/2£351
Thu 19/209:00
LHR
-
LAX
1 stop15h 35m
United Airlines
Wed 6/510:54
LAX
-
LHR
1 stop17h 26m
United Airlines
Deal found 6/2£352
Tue 17/209:00
LHR
-
LAX
1 stop15h 35m
United Airlines
Sun 8/320:00
LAX
-
LHR
Nonstop10h 30m
United Airlines
Deal found 7/2£353

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 9 February 2026.

Round-trip from

£345

One-way from

£337

Popular in

July

Cheapest in

September

Average price

£407
Lufthansa
  • Lufthansa
  • 20/2-23/2
  • 1 total stop
  • 26h 05m total
  • London to Pasadena
Search Deals
Lufthansa
  • Lufthansa
  • 15/4
  • Nonstop
  • 11h 10m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 9 February 2026.
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

Wed 25/2

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 11/3

20:00-13:30

Nonstop10h 30m

£352

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 23/2

09:00-16:35

1 stop15h 35m

Los Angeles

Mon 9/3

13:00-09:40

1 stop13h 40m

£352

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 20/2

09:00-16:35

1 stop15h 35m

Los Angeles

Mon 23/2

06:40-09:40

1 stop19h 00m

£353

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/3

09:00-17:35

1 stop15h 35m

Los Angeles

Sat 21/3

10:15-07:25

1 stop14h 10m

£353

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 6/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sun 8/3

20:00-13:30

Nonstop10h 30m

£353

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 6/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sun 15/3

20:00-13:30

Nonstop10h 30m

£353

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 11/3

09:00-17:35

1 stop15h 35m

Los Angeles

Wed 18/3

20:00-13:30

Nonstop10h 30m

£353

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 11/3

09:00-17:35

1 stop15h 35m

Los Angeles

Mon 16/3

20:00-13:30

Nonstop10h 30m

£355

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 20/2

09:00-16:35

1 stop15h 35m

Los Angeles

Wed 4/3

19:00-13:30

Nonstop10h 30m

£355

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 20/2

09:00-16:35

1 stop15h 35m

Los Angeles

Thu 5/3

19:00-13:30

Nonstop10h 30m

£355

Flights are sorted by cheapest return flights first.

Deals found on 7/2

Showing 1-10 of 22 results
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

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 6 February 2026.

Booking 7 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, December is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £325). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £383). 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 9 February 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 9 February 2026.

The most flights from LHR to P4S are scheduled on a Tuesday (50 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 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 9 February 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as KLM, Virgin Atlantic, andAir France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,450 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.4
Good
1,531 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,775 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,723 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 15h 35m. United Airlines provides one of the quickest options available for as low as £352. London Heathrow Airport and Pasadena are separated by a distance of 5439 mi.

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

    £161 is the cheapest one-way deal found within the past few days, from Norse Atlantic UK. You may also be able to find cheap deals on TAP AIR PORTUGAL and Scandinavian Airlines, with prices starting from £243 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: SriLankan 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 £2,794, our data shows the cheapest flight currently is £338. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £292 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, December is the cheapest month in which you can book a flight from London Heathrow Airport to Pasadena (average of £325). Flying from London Heathrow Airport to Pasadena in July is currently the most expensive (average of £383). 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.
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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 9 February 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£273Average£398FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£275Average£464FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£301Average£526FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
DeltaCheapest£322Average£516FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Brussels AirlinesCheapest£328Average£476FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Aer LingusCheapest£328Average£484FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£334Average£460FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£337Average£450FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Austrian AirlinesCheapest£346Average£478FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
KLMCheapest£348Average£518FlexibilityNo 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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