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Cheap flights from London Heathrow Airport to Pasadena from £251

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in March or February, booked 7 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 4 July 2025.

Round-trip from

£373

One-way from

£253

Popular in

August

Cheapest in

March

Average price

£640
Lufthansa
  • Lufthansa
  • 24/8-9/9
  • 2 total stops
  • 29h 35m total
  • London to Pasadena
Search Deals
29/8
  • 29/8
  • 1 total stop
  • 36h 50m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 4 July 2025.

Sun 24/807:25LHR - LAX
1 stop15h 50mLufthansa
Tue 9/914:55LAX - LHR
1 stop13h 45mLufthansa
Deal found 1/7£372
Wed 17/906:55LHR - LAX
1 stop16h 20mMultiple Airlines
Sun 21/919:35LAX - LHR
1 stop18h 10mMultiple Airlines
Deal found 3/7£376
Mon 25/817:00LHR - LAX
1 stop31h 20mScandinavian Airlines
Sun 7/919:30LAX - LHR
1 stop18h 10mScandinavian Airlines
Deal found 1/7£378
Fri 26/906:00LHR - LAX
1 stop16h 35mTAP AIR PORTUGAL
Tue 30/916:40LAX - LHR
1 stop22h 15mTAP AIR PORTUGAL
Deal found 3/7£381
Thu 4/908:40LHR - LAX
1 stop15h 50mSWISS
Tue 9/919:35LAX - LHR
1 stop28h 20mSWISS
Deal found 2/7£387
Thu 11/907:30LHR - LAX
1 stop17h 35mFinnair
Fri 3/1013:25LAX - LHR
Nonstop10h 35mFinnair
Deal found 3/7£391
Sat 6/908:40LHR - LAX
1 stop14h 10mVirgin Atlantic
Mon 22/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Deal found 2/7£393
Mon 1/908:40LHR - LAX
1 stop15h 50mUnited Airlines
Mon 8/921:00LAX - LHR
1 stop15h 40mUnited Airlines
Deal found 1/7£396
Sat 6/906:00LHR - LAX
1 stop15h 05mAustrian Airlines
Mon 22/908:15LAX - LHR
1 stop14h 05mAustrian Airlines
Deal found 3/7£397
Fri 22/816:55LHR - LAX
Nonstop11h 20mBritish Airways
Fri 12/921:35LAX - LHR
Nonstop10h 30mBritish Airways
Deal found 1/7£408

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 July 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

Sun 24/8

07:25-15:15

1 stop15h 50m

Los Angeles

Tue 9/9

14:55-12:40

1 stop13h 45m

£372

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 17/9

06:55-15:15

1 stop16h 20m

Los Angeles

Sun 21/9

19:35-21:45

1 stop18h 10m

£376

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 25/8

17:00-16:20

1 stop31h 20m

Los Angeles

Sun 7/9

19:30-21:40

1 stop18h 10m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 26/9

06:00-14:35

1 stop16h 35m

Los Angeles

Tue 30/9

16:40-22:55

1 stop22h 15m

£381

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 11/9

07:30-17:05

1 stop17h 35m

Los Angeles

Fri 3/10

13:25-08:00

Nonstop10h 35m

£391

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 6/9

08:40-14:50

1 stop14h 10m

Los Angeles

Mon 22/9

22:50-17:15

Nonstop10h 25m

£393

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 28/8

08:40-16:30

1 stop15h 50m

Los Angeles

Wed 10/9

16:40-11:10

Nonstop10h 30m

£396

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 6/9

06:00-13:05

1 stop15h 05m

Los Angeles

Mon 22/9

08:15-06:20

1 stop14h 05m

£397

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 29/8

08:40-16:30

1 stop15h 50m

Los Angeles

Thu 18/9

19:35-07:55

1 stop28h 20m

£398

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 22/8

16:55-20:15

Nonstop11h 20m

Los Angeles

Fri 12/9

21:35-16:05

Nonstop10h 30m

£408

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 11 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 27 June 2025.

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, 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 4 July 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 4 July 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 (45 on average).

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 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as Austrian Airlines, SWISS, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
809 reviews
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,654 reviews
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,844 reviews
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Virgin Atlantic
7.4
Good
654 reviews
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
TAP AIR PORTUGAL
7.1
Good
1,908 reviews
Austrian Airlines
7.6
Good
809 reviews
Check prices

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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 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%), KLM (88%), Air France( 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 £3,462, our data shows the cheapest flight currently is £363. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £326 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.
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London City to Oakland flights
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Gatwick to Sacramento flights
London City to Ontario flights
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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£273Average£391FlexibilityNo cancel feeOn-time79%
Search SWISS flights
DeltaCheapest£322Average£535FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Norse Atlantic UKCheapest£330Average£531FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air FranceCheapest£348Average£451FlexibilityNo cancel feeOn-time77%
Search Air France flights
Brussels AirlinesCheapest£348Average£472FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£348Average£496FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£351Average£513FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£352Average£532FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Austrian AirlinesCheapest£352Average£465FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
FinnairCheapest£353Average£459FlexibilityNo cancel feeOn-time76%
Search Finnair 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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