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Cheap flights from London to Pasadena from £345

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
12 Feb — 19 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 13 January 2026.

Round-trip from

£362

One-way from

£345

Popular in

December

Cheapest in

September

Average price

£444
Air Canada
  • Air Canada
  • 2/2-15/2
  • 3 total stops
  • 57h 46m total
  • London to Pasadena
Search Deals
Norse Atlantic UK
  • Norse Atlantic UK
  • 1/7
  • Nonstop
  • 11h 15m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 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 13 January 2026.

Mon 2/213:25
LHR
-
LAX
2 stops34h 06m
Air Canada
Thu 12/207:35
LAX
-
LHR
1 stop16h 55m
Air Canada
Deal found 13/1£362
Wed 11/209:20
LCY
-
LAX
1 stop15h 15m
SWISS
Sun 22/219:10
LAX
-
LCY
1 stop15h 30m
SWISS
Deal found 13/1£363
Tue 3/213:25
LHR
-
LAX
2 stops35h 53m
Air Canada
Sun 15/207:35
LAX
-
LHR
1 stop14h 55m
Air Canada
Deal found 12/1£363
Sat 24/111:45
LGW
-
LAX
2 stops39h 08m
British Airways
Sun 15/213:45
LAX
-
LGW
2 stops45h 15m
British Airways
Deal found 12/1£363
Mon 19/115:20
LHR
-
LAX
Nonstop11h 25m
United Airlines
Fri 20/212:08
LAX
-
LHR
1 stop15h 52m
United Airlines
Deal found 12/1£363
Wed 25/209:20
LCY
-
LAX
1 stop15h 15m
SWISS
Wed 4/319:10
LAX
-
LCY
1 stop29h 35m
SWISS
Deal found 11/1£364
Sun 18/115:20
LHR
-
LAX
Nonstop11h 25m
United Airlines
Sat 31/113:04
LAX
-
LHR
1 stop12h 36m
United Airlines
Deal found 11/1£364
Fri 13/211:20
LGW
-
LAX
2 stops45h 39m
Multiple Airlines
Sun 22/218:10
LAX
-
LGW
1 stop32h 40m
Multiple Airlines
Deal found 12/1£364
Mon 23/312:10
LHR
-
LAX
1 stop14h 20m
British Airways
Mon 6/415:45
LAX
-
LHR
Nonstop10h 30m
British Airways
Deal found 11/1£365
Wed 2/918:35
LGW
-
LAX
1 stop29h 55m
SWISS
Wed 16/919:35
LAX
-
LGW
1 stop14h 15m
SWISS
Deal found 12/1£365
Sun 1/218:00
LHR
-
LAX
2 stops32h 47m
Air Canada
Sat 14/216:20
LAX
-
LHR
1 stop30h 10m
Air Canada
Deal found 13/1£366
Thu 22/118:40
LGW
-
LAX
1 stop29h 55m
SWISS
Wed 4/219:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 13/1£366

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 13 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 24/1

15:20-18:45

Nonstop11h 25m

Los Angeles

Wed 28/1

19:00-13:30

Nonstop10h 30m

£363

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

15:20-18:45

Nonstop11h 25m

Los Angeles

Sat 14/2

19:00-13:30

Nonstop10h 30m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 1/3

11:50-15:20

Nonstop11h 30m

Los Angeles

Sun 15/3

19:00-12:30

Nonstop10h 30m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 23/6

07:25-15:15

1 stop15h 50m

Los Angeles

Sun 26/7

00:10-06:45

1 stop22h 35m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 27/2

11:50-15:20

Nonstop11h 30m

Los Angeles

Fri 6/3

21:00-15:30

Nonstop10h 30m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 21/5

07:25-15:15

1 stop15h 50m

Los Angeles

Tue 26/5

15:35-10:10

Nonstop10h 35m

£364

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 31/1

12:05-20:44

1 stop16h 39m

Los Angeles

Fri 13/2

19:00-13:30

Nonstop10h 30m

£368

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 13/2

10:25-18:45

1 stop16h 20m

Los Angeles

Sun 22/2

11:08-09:40

1 stop14h 32m

£368

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 1/3

16:20-13:44

2 stops29h 24m

Los Angeles

Sun 15/3

07:00-09:40

1 stop19h 40m

£368

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 3/6

08:40-14:45

1 stop14h 05m

Los Angeles

Wed 17/6

20:35-15:00

Nonstop10h 25m

£375

Flights are sorted by cheapest return flights first.

Deals found on 11/1

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 9 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 £238). 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 13 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 13 January 2026.

The most flights from LON to P4S are scheduled on a Monday (50 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (44 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 13 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
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,437 reviews
KLM
7.7
Good
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,709 reviews
KLM
7.7
Good
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,665 reviews
KLM
7.7
Good
1,437 reviews
Check prices

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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?

    United Airlines, British Airways, and Virgin Atlantic can get you from London to Pasadena in just under 11h 25m. Your travel time can differ by up to 15h 15m. 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 £163 on Norse Atlantic UK. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £246 and Scandinavian Airlines from £250 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 £2,654 for a flight from London to Pasadena. The cheapest flight overall is £342 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £248.

  • 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 £238). 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 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£238Average£492FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£277Average£488FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£279Average£472FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£293Average£515FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£333Average£496FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£335Average£533FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£337Average£449FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£356Average£491FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£356Average£521FlexibilityNo cancel feeOn-time75%
Search KLM flights
Brussels AirlinesCheapest£356Average£483FlexibilityNo cancel feeOn-timeN/A
Search Brussels 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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