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Cheap flights from London to Pasadena from £318

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 28/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Pasadena are usually found in September or February, booked 7 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Find flight deals from London to Pasadena

Enter your travel dates to find the best prices.

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 5 November 2025.

Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 3/11£373
Mon 17/1113:40LHR - LAX
1 stop33h 20mTAP AIR PORTUGAL
Sat 29/1116:45LAX - LHR
1 stop35h 55mTAP AIR PORTUGAL
Deal found 4/11£382
Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Tue 9/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 4/11£392
Wed 3/1218:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Tue 9/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 4/11£393
Mon 17/1113:40LHR - LAX
1 stop33h 20mTAP AIR PORTUGAL
Thu 27/1116:45LAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 3/11£408
Wed 5/1116:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 3/11£408
Thu 20/1106:40LHR - LAX
1 stop18h 20mScandinavian Airlines
Thu 22/119:30LAX - LHR
1 stop14h 10mScandinavian Airlines
Deal found 4/11£415
Mon 17/1116:35LGW - LAX
1 stop30h 25mTAP AIR PORTUGAL
Sat 29/1116:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 3/11£415
Wed 3/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 2/11£415
Thu 20/1107:05LHR - LAX
2 stops17h 55mScandinavian Airlines
Wed 26/1119:30LAX - LHR
1 stop15h 00mScandinavian Airlines
Deal found 4/11£422
Wed 3/1207:05LHR - LAX
2 stops41h 55mScandinavian Airlines
Sun 7/1219:30LAX - LHR
2 stops17h 50mScandinavian Airlines
Deal found 3/11£423
Wed 3/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Tue 6/116:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 4/11£447

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 5 November 2025.

Round-trip from

£371

One-way from

£318

Popular in

December

Cheapest in

September

Average price

£477
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 4/2-10/2
  • 2 total stops
  • 63h 10m total
  • London to Pasadena
Search Deals
28/2
  • 28/2
  • 3 total stops
  • 32h 05m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 5 November 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

LGW - LAX

LGWLAX

London Gatwick

Mon 13/4

21:15-14:45

2 stops25h 30m

Los Angeles

Tue 21/4

16:45-09:45

1 stop33h 00m

£445

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 4/4

06:15-13:05

1 stop14h 50m

Los Angeles

Fri 17/4

13:35-13:10

1 stop15h 35m

£457

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Thu 11/12

07:00-19:10

1 stop20h 10m

Los Angeles

Tue 16/12

19:50-08:30

1 stop28h 40m

£460

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 13/2

06:30-11:45

1 stop13h 15m

Los Angeles

Fri 20/2

11:55-08:45

1 stop12h 50m

£461

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 15/4

06:30-14:50

1 stop16h 20m

Los Angeles

Mon 20/4

19:35-14:00

Nonstop10h 25m

£462

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 24/3

11:20-15:35

Nonstop11h 15m

Los Angeles

Wed 8/4

09:35-08:55

1 stop15h 20m

£470

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 17/11

21:05-17:00

2 stops27h 55m

Los Angeles

Sat 29/11

19:30-21:35

2 stops18h 05m

£475

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Wed 19/11

06:50-18:30

1 stop19h 40m

Los Angeles

Wed 26/11

20:15-23:05

1 stop18h 50m

£479

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 6/1

10:45-16:35

1 stop13h 50m

Los Angeles

Fri 16/1

09:49-09:00

2 stops15h 11m

£480

LondonLos Angeles

STN - LAX

STNLAX

London Stansted

Sun 23/11

06:30-18:30

1 stop20h 00m

Los Angeles

Sun 30/11

20:15-18:20

1 stop14h 05m

£482

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 60 results
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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 31 October 2025.

Booking 7 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, September is the cheapest month in which you can book a flight from London to Pasadena (average of £245). Flying from London to Pasadena in July is currently the most expensive (average of £425). 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 5 November 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from London to Pasadena by exploring options for tickets in the afternoon.

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 Sunday mornings when fares are most often at their lowest. Saturday at midday 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 5 November 2025.

The most flights from LON to P4S are scheduled on a Monday (44 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 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 5 November 2025.
Check out reviews from past customers who have flown with KLM, Virgin Atlantic, andNorse Atlantic UK 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
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
671 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,552 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,496 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • How long is the flight from London to Pasadena?

    TAP AIR PORTUGAL, Delta, and LEVEL can get you from London to Pasadena in just under 14h 50m. Your travel time can differ by up to 10h 40m. London 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 to Pasadena one-way?

    One-way options have recently been found by users for as low as £327 on LEVEL. Other airlines that offer cheap prices include SWISS from £338 and WestJet from £340 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 Gatwick - Los Angeles or London City - 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: KLM (87%), Air France (83%), Delta( 83%).

  • What are the cheapest flights from London to Pasadena?

    On average you can expect to pay £2,602 for a flight from London to Pasadena. The cheapest flight overall is £353 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £359.

  • 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, September is the cheapest month in which you can book a flight from London to Pasadena (average of £245). Flying from London to Pasadena in July is currently the most expensive (average of £425). 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

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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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£287Average£509FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£300Average£471FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£302Average£537FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£343Average£555FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£345Average£606FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£354Average£484FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£364Average£493FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£366Average£518FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£368Average£492FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£369Average£554FlexibilityNo 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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