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Cheap flights from London to Pasadena from £347

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
6 Feb — 13 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Pasadena are usually found in September or February, booked 37 days in advance, depart on a Wednesday or Thursday and return on a Monday

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 7 January 2026.

Round-trip from

£364

One-way from

£347

Popular in

July

Cheapest in

September

Average price

£444
United Airlines
  • United Airlines
  • 6/4-14/4
  • 2 total stops
  • 28h 30m total
  • London to Pasadena
Search Deals
30/1
  • 30/1
  • 3 total stops
  • 34h 05m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£48 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 January 2026
Search Deals

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 7 January 2026.

Mon 6/406:55LHR - LAX
1 stop16h 20mUnited Airlines
Tue 14/416:10LAX - LHR
1 stop12h 10mUnited Airlines
Deal found 6/1£364
Wed 15/409:25LGW - LAX
1 stop15h 05mSWISS
Wed 29/419:35LAX - LGW
1 stop14h 15mSWISS
Deal found 6/1£364
Sat 31/113:25LHR - LAX
1 stop16h 35mUnited Airlines
Sat 14/219:00LAX - LHR
Nonstop10h 30mUnited Airlines
Deal found 6/1£365
Sat 14/313:25LHR - LAX
1 stop15h 35mUnited Airlines
Sun 22/320:00LAX - LHR
Nonstop10h 30mUnited Airlines
Deal found 6/1£366
Fri 23/118:40LGW - LAX
1 stop29h 55mSWISS
Sun 1/219:10LAX - LGW
1 stop14h 40mSWISS
Deal found 6/1£366
Sat 31/120:05LHR - LAX
1 stop28h 30mSWISS
Sun 8/219:10LAX - LHR
2 stops29h 05mSWISS
Deal found 6/1£367
Wed 2/909:40LGW - LAX
Nonstop11h 15mNorse Atlantic UK
Wed 16/916:35LAX - LGW
Nonstop10h 20mNorse Atlantic UK
Deal found 6/1£367
Thu 15/111:35LHR - LAX
1 stop13h 50mUnited Airlines
Wed 28/113:04LAX - LHR
1 stop12h 36mUnited Airlines
Deal found 6/1£367
Thu 15/118:40LGW - LAX
1 stop29h 55mSWISS
Wed 28/119:10LAX - LGW
1 stop14h 40mSWISS
Deal found 6/1£367
Fri 6/209:20LCY - LAX
1 stop15h 15mSWISS
Tue 10/219:10LAX - LCY
1 stop13h 55mSWISS
Deal found 6/1£368
Thu 19/218:40LGW - LAX
1 stop29h 55mSWISS
Thu 26/219:10LAX - LGW
1 stop14h 40mSWISS
Deal found 6/1£368
Fri 27/211:10LHR - LAX
1 stop16h 17mAir Canada
Thu 5/312:50LAX - LHR
1 stop15h 00mAir Canada
Deal found 6/1£369

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 7 January 2026.
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

Sat 25/4

12:00-18:25

1 stop14h 25m

Los Angeles

Sat 2/5

20:55-15:25

Nonstop10h 30m

£366

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 1/5

09:55-13:10

Nonstop11h 15m

Los Angeles

Fri 15/5

23:15-17:35

Nonstop10h 20m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 25/4

07:25-15:15

1 stop15h 50m

Los Angeles

Sat 2/5

07:00-10:00

2 stops19h 00m

£371

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 3/7

09:55-13:10

Nonstop11h 15m

Los Angeles

Mon 20/7

20:35-15:00

Nonstop10h 25m

£375

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 4/4

08:55-18:15

1 stop17h 20m

Los Angeles

Mon 20/4

16:39-14:25

1 stop13h 46m

£376

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 1/4

07:30-17:10

1 stop17h 40m

Los Angeles

Mon 13/4

18:50-20:40

1 stop17h 50m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 14/3

11:20-15:35

Nonstop11h 15m

Los Angeles

Mon 23/3

17:35-10:55

Nonstop10h 20m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 14/3

11:20-15:35

Nonstop11h 15m

Los Angeles

Wed 25/3

17:35-10:55

Nonstop10h 20m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 1/5

20:25-15:15

1 stop26h 50m

Los Angeles

Fri 15/5

05:00-10:00

2 stops21h 00m

£378

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 14/5

17:00-20:20

Nonstop11h 20m

Los Angeles

Fri 29/5

20:55-15:25

Nonstop10h 30m

£381

Flights are sorted by cheapest return flights first.

Deals found on 6/1

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 2 January 2026.

Booking 37 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 £237). Flying from London to Pasadena in July is currently the most expensive (average of £395). 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 7 January 2026.

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.

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 7 January 2026.

The most flights from LON to P4S are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (32 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 7 January 2026.
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
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,688 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,657 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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?

    British Airways, Virgin Atlantic, and Iberia can get you from London to Pasadena in just under 11h 15m. Your travel time can differ by up to 17h 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 £162 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £245 and Scandinavian Airlines from £248 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: SriLankan Airlines (97%), Air Canada (93%), Austrian Airlines( 93%).

  • What are the cheapest flights from London to Pasadena?

    On average you can expect to pay £2,640 for a flight from London to Pasadena. The cheapest flight overall is £340 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £283.

  • 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 £237). Flying from London to Pasadena in July is currently the most expensive (average of £395). 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 7 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£237Average£493FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£275Average£444FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£277Average£477FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£291Average£514FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£331Average£494FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£334Average£534FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£336Average£449FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£355Average£472FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£355Average£484FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£355Average£519FlexibilityNo 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 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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