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Cheap flights from London 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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
17 Jul — 24 Jul1
1 adult

Cheapflights Tip: The best prices from London to Pasadena are usually found in February or September, booked 68 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from London to Pasadena

Keep the following information in mind while searching for London to Pasadena flight deals. Data was last updated 12 July 2025.

Round-trip from

£375

One-way from

£254

Popular in

August

Cheapest in

February

Average price

£586
Scandinavian Airlines
  • Scandinavian Airlines
  • 26/8-2/9
  • 2 total stops
  • 32h 40m total
  • London to Pasadena
Search Deals
15/11
  • 15/11
  • 1 total stop
  • 19h 10m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to Pasadena

Cheapest flights from London to Pasadena
Explore the most affordable flight options available from London to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 July 2025.

Tue 26/806:40LHR - LAX
1 stop17h 40mScandinavian Airlines
Tue 2/919:30LAX - LHR
1 stop15h 00mScandinavian Airlines
Deal found 11/7£375
Tue 16/915:05LGW - LAX
1 stop17h 13mBritish Airways
Mon 22/907:00LAX - LGW
1 stop17h 10mBritish Airways
Deal found 10/7£375
Sun 24/806:30LHR - LAX
1 stop13h 20mVirgin Atlantic
Tue 9/922:50LAX - LHR
Nonstop10h 25mVirgin Atlantic
Deal found 11/7£376
Thu 4/910:45LGW - LAX
Nonstop11h 15mA.P.G.
Sat 20/915:05LAX - LGW
Nonstop10h 25mA.P.G.
Deal found 11/7£376
Mon 22/908:10LCY - LAX
1 stop16h 20mSWISS
Wed 15/1019:35LAX - LCY
1 stop15h 10mSWISS
Deal found 10/7£376
Thu 4/908:40LHR - LAX
1 stop15h 50mSWISS
Sat 20/919:35LAX - LHR
1 stop28h 20mSWISS
Deal found 11/7£376
Tue 2/919:05LTN - LAX
1 stop32h 00mMultiple Airlines
Wed 24/921:25LAX - LTN
1 stop27h 50mMultiple Airlines
Deal found 10/7£376
Thu 28/818:40LHR - LAX
1 stop29h 50mMultiple Airlines
Wed 10/918:40LAX - LHR
1 stop14h 00mMultiple Airlines
Deal found 10/7£377
Mon 25/810:45LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Mon 1/916:25LAX - LGW
Nonstop10h 25mNorse Atlantic UK
Deal found 11/7£377
Tue 2/907:25LHR - LAX
1 stop15h 50mLufthansa
Wed 24/914:55LAX - LHR
1 stop13h 45mLufthansa
Deal found 10/7£378
Mon 1/916:25LGW - LAX
1 stop30h 15mTAP AIR PORTUGAL
Sun 14/916:40LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 10/7£379
Tue 2/918:05LGW - LAX
1 stop33h 00mMultiple Airlines
Wed 24/921:25LAX - LGW
1 stop17h 10mMultiple Airlines
Deal found 10/7£379

Cheapflights Fare Finder

Customise your flight search to find flights from London 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 12 July 2025.
Use the filters below to find and compare flights from London to Pasadena that are best for you.

Fly from

London

Fly to

Pasadena

Route

Depart

Return

Price

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 26/8

06:40-16:20

1 stop17h 40m

Los Angeles

Tue 2/9

19:30-18:30

1 stop15h 00m

£375

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Tue 16/9

15:05-00:18

1 stop17h 13m

Los Angeles

Mon 22/9

07:00-08:10

1 stop17h 10m

£375

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 24/8

06:30-11:50

1 stop13h 20m

Los Angeles

Tue 9/9

22:50-17:15

Nonstop10h 25m

£376

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Thu 4/9

10:45-14:00

Nonstop11h 15m

Los Angeles

Sat 20/9

15:05-09:30

Nonstop10h 25m

£376

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Mon 22/9

08:10-16:30

1 stop16h 20m

Los Angeles

Wed 15/10

19:35-18:45

1 stop15h 10m

£376

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Tue 2/9

19:05-19:05

1 stop32h 00m

Los Angeles

Wed 24/9

21:25-09:15

1 stop27h 50m

£376

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 4/9

08:40-16:30

1 stop15h 50m

Los Angeles

Sat 20/9

19:35-07:55

1 stop28h 20m

£376

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Mon 25/8

10:45-14:00

Nonstop11h 15m

Los Angeles

Mon 1/9

16:25-10:50

Nonstop10h 25m

£377

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 28/8

18:40-16:30

1 stop29h 50m

Los Angeles

Wed 10/9

18:40-16:40

1 stop14h 00m

£377

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 2/9

07:25-15:15

1 stop15h 50m

Los Angeles

Wed 24/9

14:55-12:40

1 stop13h 45m

£378

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from London to Pasadena

Have a flexible travel schedule? Discover the best time to fly to Pasadena from London 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 to Pasadena

How far ahead should I book a flight from London to Pasadena?

Use this chart to determine the optimal time to book a return flight from London to Pasadena. Price data was last updated on 27 June 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from London 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 to Pasadena?

Currently, January is the cheapest month in which you can book a flight from London to Pasadena (average of £575). Flying from London 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 LON to P4S?

Find hourly flight availability from London 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 12 July 2025.

When flying from London to Pasadena, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from London to Pasadena?

Use this chart to determine the cheapest time to fly return from London to Pasadena. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Pasadena flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Pasadena

Explore weekly flight availability from London 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 12 July 2025.

The most flights from LON to P4S are scheduled on a Monday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (56 on average).

How much does it cost for a return flight from London 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 12 July 2025.
Check out reviews from past customers who have flown with KLM, Austrian Airlines, andFinnair from London to Pasadena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,372 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Austrian Airlines
7.6
Good
811 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Finnair
7.6
Good
1,315 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Air France
7.5
Good
1,468 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,655 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from London 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 cheapest airlines to fly from London to Pasadena one-way?

    One-way options have recently been found by users for as low as £258 on Norse Atlantic UK. Other airlines that offer cheap prices include Vueling from £276 and A.P.G. from £282 one-way.

  • What are the most popular routes from London to Pasadena?

    When deciding which route to take from London to Pasadena consider London Heathrow - Los Angeles, London City - Los Angeles or London Gatwick - Los Angeles as they are the most popular.

  • What are the most reliable airlines from London to Pasadena?

    Before booking your flight to Pasadena from London, 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 to Pasadena?

    On average you can expect to pay £3,464 for a flight from London to Pasadena. The cheapest flight overall is £375 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £312.

  • Can I find deals for flights from London to Pasadena that include hotel bookings?

    Yes. In addition to deals on London to Pasadena flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Pasadena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Pasadena.

  • Can I find deals for business class flights from London to Pasadena?

    Yes. Cheapflights offers flight deals from London 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 to Pasadena?

    Currently, January is the cheapest month in which you can book a flight from London to Pasadena (average of £575). Flying from London 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 London 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 London to Pasadena

Discover the top 10 airlines that operate flights from London 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 12 July 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£275Average£556FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£277Average£470FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£309Average£518FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
DeltaCheapest£325Average£527FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest£344Average£507FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£351Average£456FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£351Average£499FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£352Average£477FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£356Average£467FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
United AirlinesCheapest£356Average£537FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 London to Pasadena?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Pasadena. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Pasadena?

Cheapflights simply makes it quick and affordable to book flights from London to Pasadena by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Pasadena with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Pasadena, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Pasadena become cheaper?

Yes, Cheapflights offers price alerts on London to Pasadena flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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