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Cheap flights from London to Pasadena from £375

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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
4 Sep — 11 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Pasadena are usually found in February or September, booked 41 days in advance, depart on a Friday or Thursday 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 5 August 2026.

Fri 18/907:30 -
1 stop16h 50m
Fri 25/916:15 -
1 stop12h 10m
Deal found 3/8£434
Thu 29/1018:40 -
1 stop29h 55m
Sun 22/1119:10 -
1 stop14h 40m
Deal found 3/8£434
Tue 3/1109:00 -
1 stop15h 35m
Sun 15/1118:55 -
Nonstop10h 35m
Deal found 31/7£435
Tue 15/918:35 -
1 stop29h 55m
Tue 22/919:35 -
1 stop14h 15m
Deal found 1/8£435
Fri 23/1006:55 -
1 stop16h 20m
Fri 30/1018:10 -
1 stop34h 40m
Deal found 31/7£436
Tue 1/909:25 -
1 stop15h 05m
Tue 8/919:35 -
1 stop14h 15m
Deal found 4/8£436
Thu 8/1015:00 -
1 stop14h 35m
Fri 16/1013:25 -
1 stop13h 45m
Deal found 5/8£437
Tue 8/909:25 -
1 stop15h 05m
Wed 30/919:35 -
1 stop14h 15m
Deal found 2/8£437
Sun 18/1013:05 -
Nonstop11h 20m
Wed 28/1008:15 -
1 stop14h 40m
Deal found 4/8£437
Wed 21/1008:25 -
1 stop14h 20m
Mon 26/1009:41 -
2 stops16h 49m
Deal found 5/8£438
Tue 10/1109:00 -
1 stop15h 35m
Tue 17/1108:25 -
1 stop14h 15m
Deal found 3/8£438
Wed 16/909:25 -
1 stop15h 05m
Mon 21/919:35 -
1 stop14h 15m
Deal found 4/8£438

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 5 August 2026.

Round-trip from

£434

One-way from

£375

Popular in

December

Cheapest in

February

Average price

£528
United Airlines
  • United Airlines
  • 18/9-25/9
  • 2 total stops
  • 29h 00m total
  • London to Pasadena
Search Deals
Aer Lingus
  • Aer Lingus
  • 19/10
  • 2 total stops
  • 41h 20m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 5 August 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

Mon 7/9

06:50-08:22

2 stops33h 32m

Los Angeles

Sun 13/9

08:15-06:45

1 stop14h 30m

£437

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Sat 26/9

12:45-13:30

2 stops32h 45m

Los Angeles

Sat 10/10

16:55-23:40

2 stops22h 45m

£443

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 14/10

06:55-15:15

1 stop16h 20m

Los Angeles

Wed 16/12

16:30-11:20

1 stop34h 50m

£445

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 16/9

06:00-13:05

1 stop15h 05m

Los Angeles

Wed 23/9

15:40-10:10

Nonstop10h 30m

£452

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 25/9

13:05-16:25

Nonstop11h 20m

Los Angeles

Wed 14/10

15:40-10:10

Nonstop10h 30m

£455
Fastest return journey

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 18/9

13:05-16:25

Nonstop11h 20m

Los Angeles

Fri 25/9

15:40-10:10

Nonstop10h 30m

£456

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 20/1

15:20-18:45

Nonstop11h 25m

Los Angeles

Sat 23/1

18:55-13:30

Nonstop10h 35m

£458

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 17/10

15:05-21:35

1 stop14h 30m

Los Angeles

Mon 2/11

18:55-13:30

Nonstop10h 35m

£463

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 20/12

11:35-17:41

1 stop14h 06m

Los Angeles

Wed 6/1

10:15-07:40

1 stop13h 25m

£468

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 21/8

07:25-15:15

1 stop15h 50m

Los Angeles

Thu 10/9

15:40-10:10

Nonstop10h 30m

£469

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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 5 August 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 5 August 2026.

The most flights from LON to P4S are scheduled on a Monday (57 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (34 on average).

How much does it cost for a return flight from London to Pasadena?

Airfare is below average for this route at the moment.
London to Pasadena flights typically cost between £455 and £617 in September.
The cheapest return price found within the last 5 days was £434 on United Airlines (18 Sept–25 Sept).

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 August 2026.
Check out reviews from past customers who have flown with Virgin Atlantic,United Airlines, 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.
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
694 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,060 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Norse Atlantic UK
7.2
Good
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,176 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,150 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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, Austrian Airlines, and Virgin Atlantic can get you from London to Pasadena in just under 11h 20m. Your travel time can differ by up to 22h 12m. 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 £170 on WestJet. Other airlines that offer cheap prices include Norse Atlantic UK from £193 and TAP AIR PORTUGAL from £246 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: SriLankan Airlines (100%), Malaysia Airlines (92%), Fiji Airways( 89%).

  • What are the cheapest flights from London to Pasadena?

    On average you can expect to pay £2,212 for a flight from London to Pasadena. The cheapest flight overall is £310 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £356.

  • 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 5 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£294Average£542FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£332Average£455FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£339Average£463FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£340Average£585FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£343Average£460FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£345Average£470FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
SWISSCheapest£346Average£500FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£352Average£486FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£352Average£481FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£362Average£588FlexibilityNo 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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