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Cheap flights from London Heathrow Airport to Pasadena from £254

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
23 7월 — 30 7월1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Pasadena are usually found in March or February, booked 56 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 18 7월 2025.

Round-trip from

£380

One-way from

£254

Popular in

July

Cheapest in

March

Average price

£657
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/9-21/9
  • 2 total stops
  • 35h 50m total
  • London to Pasadena
Search Deals
15/10
  • 15/10
  • 1 total stop
  • 29h 15m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£73 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
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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 18 7월 2025.

금 5/906:40LHR - LAX
1 stop17h 40mScandinavian Airlines
일 21/919:30LAX - LHR
1 stop18h 10mScandinavian Airlines
Deal found 17/7£380
금 29/818:40LHR - LAX
1 stop29h 50mMultiple Airlines
금 12/916:40LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 18/7£386
목 11/907:00LHR - LAX
2 stops17h 30mSWISS
금 3/1019:35LAX - LHR
1 stop18h 10mSWISS
Deal found 18/7£389
일 7/906:30LHR - LAX
1 stop14h 30mLufthansa
일 21/916:40LAX - LHR
Nonstop10h 30mLufthansa
Deal found 17/7£391
토 6/919:30LHR - LAX
1 stop25h 35mAustrian Airlines
월 22/916:40LAX - LHR
Nonstop10h 30mAustrian Airlines
Deal found 16/7£399
토 6/907:25LHR - LAX
1 stop15h 50mUnited Airlines
월 22/914:39LAX - LHR
1 stop13h 41mUnited Airlines
Deal found 16/7£401
토 6/917:30LHR - LAX
Nonstop11h 15mAir France
월 22/922:50LAX - LHR
Nonstop10h 25mAir France
Deal found 16/7£403
목 11/914:45LHR - LAX
Nonstop11h 20mBritish Airways
수 24/920:05LAX - LHR
Nonstop10h 30mBritish Airways
Deal found 18/7£407
목 11/910:20LHR - LAX
1 stop14h 45mFinnair
수 24/913:25LAX - LHR
Nonstop10h 35mFinnair
Deal found 18/7£412

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 18 7월 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

금 5/9

06:40-16:20

1 stop17h 40m

Los Angeles

일 21/9

19:30-21:40

1 stop18h 10m

£380

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

금 29/8

18:40-16:30

1 stop29h 50m

Los Angeles

금 12/9

16:40-11:10

Nonstop10h 30m

£386

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

목 11/9

07:00-16:30

2 stops17h 30m

Los Angeles

금 3/10

19:35-21:45

1 stop18h 10m

£389

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

일 7/9

06:30-13:00

1 stop14h 30m

Los Angeles

일 21/9

16:40-11:10

Nonstop10h 30m

£391

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

목 11/9

06:00-13:05

1 stop15h 05m

Los Angeles

수 17/9

08:18-06:55

1 stop14h 37m

£400

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

토 6/9

07:25-15:15

1 stop15h 50m

Los Angeles

월 22/9

11:32-11:35

1 stop16h 03m

£401

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

토 6/9

17:30-20:45

Nonstop11h 15m

Los Angeles

월 22/9

22:50-17:15

Nonstop10h 25m

£403

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

목 11/9

14:45-18:05

Nonstop11h 20m

Los Angeles

수 24/9

20:05-14:35

Nonstop10h 30m

£407

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

목 11/9

10:20-17:05

1 stop14h 45m

Los Angeles

수 24/9

13:25-08:00

Nonstop10h 35m

£412

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

수 5/11

17:25-10:55

2 stops25h 30m

£254

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 12 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 11 July 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 18 7월 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 18 7월 2025.

The most flights from LHR to P4S are scheduled on a Monday (56 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (56 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 18 7월 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Pasadena, such as Austrian Airlines, Finnair, andAir France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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
817 reviews
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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
Finnair
7.6
Good
1,316 reviews
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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
Air France
7.5
Good
1,465 reviews
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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
1,661 reviews
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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
8,865 reviews
Austrian Airlines
7.6
Good
817 reviews
Check prices

Overall

7.6

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Crew

8.1

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: KLM (86%), Air France (86%), Delta( 86%).

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

    While on average a flight from London Heathrow Airport to Pasadena is generally £2,065, our data shows the cheapest flight currently is £386. When looking at the most popular route, (London Heathrow - Los Angeles), you can expect to pay £340 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

Browse thousands of different options on Cheapflights for your next trip

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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 18 7월 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£278Average£380FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£280Average£466FlexibilityNo cancel feeOn-time76%
Search Finnair flights
DeltaCheapest£328Average£562FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Norse Atlantic UKCheapest£336Average£539FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Air FranceCheapest£354Average£460FlexibilityNo cancel feeOn-time77%
Search Air France flights
Brussels AirlinesCheapest£355Average£477FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£355Average£502FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
United AirlinesCheapest£359Average£540FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Austrian AirlinesCheapest£359Average£475FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
KLMCheapest£359Average£523FlexibilityNo 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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