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Cheap flights from London to Pasadena from £399

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
13 Jun — 20 Jun1
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 Friday or Wednesday and return on a Wednesday

Cheap 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 14 May 2026.

Wed 29/712:25
LHR
-
LAX
1 stop16h 26m
Delta
Sun 9/817:51
LAX
-
LHR
1 stop13h 44m
Delta
Deal found 9/5£464
Wed 27/508:55
LHR
-
LAX
1 stop15h 10m
Virgin Atlantic
Wed 3/617:40
LAX
-
LHR
1 stop13h 55m
Virgin Atlantic
Deal found 11/5£464
Sat 16/514:30
LHR
-
LAX
Nonstop11h 15m
Virgin Atlantic
Tue 19/515:26
LAX
-
LHR
1 stop13h 39m
Virgin Atlantic
Deal found 9/5£465
Thu 27/808:40
LHR
-
LAX
1 stop14h 05m
Virgin Atlantic
Sun 6/915:50
LAX
-
LHR
Nonstop10h 25m
Virgin Atlantic
Deal found 9/5£466
Thu 27/806:30
LHR
-
LAX
1 stop13h 20m
Virgin Atlantic
Thu 10/908:15
LAX
-
LHR
1 stop14h 05m
Virgin Atlantic
Deal found 10/5£467
Sat 19/916:30
LGW
-
LAX
1 stop29h 00m
TAP AIR PORTUGAL
Sat 26/916:55
LAX
-
LGW
1 stop32h 50m
TAP AIR PORTUGAL
Deal found 10/5£467
Mon 14/912:00
LHR
-
LAX
1 stop14h 25m
British Airways
Mon 12/1018:05
LAX
-
LHR
Nonstop10h 40m
British Airways
Deal found 10/5£467
Tue 22/912:00
LHR
-
LAX
1 stop14h 25m
British Airways
Thu 22/1021:00
LAX
-
LHR
Nonstop10h 25m
British Airways
Deal found 9/5£468
Tue 1/906:30
LHR
-
LAX
1 stop13h 20m
KLM
Wed 23/914:15
LAX
-
LHR
1 stop13h 05m
KLM
Deal found 11/5£469
Thu 2/715:50
LHR
-
LAX
1 stop15h 51m
Virgin Atlantic
Thu 16/720:30
LAX
-
LHR
Nonstop10h 25m
Virgin Atlantic
Deal found 8/5£470
Mon 25/506:30
LHR
-
LAX
1 stop13h 20m
Virgin Atlantic
Mon 8/623:15
LAX
-
LHR
Nonstop10h 20m
Virgin Atlantic
Deal found 10/5£470
Wed 10/607:30
LHR
-
LAX
1 stop17h 40m
Multiple Airlines
Wed 17/609:31
LAX
-
LHR
1 stop13h 19m
Multiple Airlines
Deal found 11/5£472

Find flight deals from London to Pasadena

Keep the following information in mind while searching for London to Pasadena flight deals. Data was last updated 14 May 2026.

Round-trip from

£464

One-way from

£399

Popular in

December

Cheapest in

September

Average price

£466
Delta
  • Delta
  • 29/7-9/8
  • 2 total stops
  • 30h 10m total
  • London to Pasadena
Search Deals
2/6
  • 2/6
  • 1 total stop
  • 34h 30m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 14 May 2026.
Use the filters below to find and compare flights from London to Pasadena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 5/6

08:40-14:45

1 stop14h 05m

Los Angeles

Mon 8/6

17:45-15:35

1 stop13h 50m

£492
Fastest return journey

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 6/7

09:55-13:10

Nonstop11h 15m

Los Angeles

Fri 17/7

15:50-10:15

Nonstop10h 25m

£501

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 25/5

08:20-11:30

Nonstop11h 10m

Los Angeles

Mon 8/6

16:30-11:05

Nonstop10h 35m

£501

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 7/6

09:55-13:10

Nonstop11h 15m

Los Angeles

Fri 10/7

20:35-15:00

Nonstop10h 25m

£506

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Fri 28/8

21:15-14:40

2 stops25h 25m

Los Angeles

Fri 25/9

16:40-09:45

1 stop33h 05m

£509

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Sat 29/8

10:25-18:36

1 stop16h 11m

Los Angeles

Sun 13/9

18:00-16:00

1 stop14h 00m

£512

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 5/8

09:20-19:39

1 stop18h 19m

Los Angeles

Wed 26/8

12:31-13:05

1 stop16h 34m

£515

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 7/8

15:15-00:37

1 stop17h 22m

Los Angeles

Wed 19/8

06:00-06:25

1 stop16h 25m

£518

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Thu 28/5

09:20-19:41

2 stops18h 21m

Los Angeles

Thu 4/6

15:26-16:40

2 stops17h 14m

£521

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Wed 7/10

10:00-23:53

2 stops21h 53m

Los Angeles

Fri 16/10

13:50-11:40

1 stop13h 50m

£522

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

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 14 May 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 14 May 2026.

The most flights from LON to P4S are scheduled on a Monday (54 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (54 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 14 May 2026.
Check out reviews from past customers who have flown with United Airlines,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.
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
9,711 reviews
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Virgin Atlantic
7.4
Good
688 reviews
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Norse Atlantic UK
7.2
Good
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Lufthansa
6.8
Okay
7,999 reviews
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
British Airways
6.7
Okay
7,979 reviews
United Airlines
7.4
Good
9,711 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

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?

    Delta, KLM, and Finnair can get you from London to Pasadena in just under 11h 10m. Your travel time can differ by up to 2h 55m. 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 £169 on WestJet. Other airlines that offer cheap prices include Norse Atlantic UK from £189 and TAP AIR PORTUGAL from £243 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 Stansted - 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: Malaysia Airlines (91%), Royal Jordanian (90%), Fiji Airways( 89%).

  • What are the cheapest flights from London to Pasadena?

    On average you can expect to pay £2,166 for a flight from London to Pasadena. The cheapest flight overall is £459 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.

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 14 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£237Average£501FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Norse Atlantic UKCheapest£258Average£486FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£290Average£540FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£319Average£419FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£330Average£454FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Brussels AirlinesCheapest£332Average£442FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
DeltaCheapest£334Average£536FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Austrian AirlinesCheapest£348Average£474FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£349Average£474FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£354Average£522FlexibilityNo 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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