Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Pasadena from £325

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
12 Dec — 19 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 12 November 2025.

Sat 6/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 11/11£394
Sat 6/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Tue 9/1216:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 12/11£406
Wed 3/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 10/11£410
Tue 9/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 22/116:45LAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 10/11£411
Mon 8/1208:15LHR - LAX
1 stop38h 45mTAP AIR PORTUGAL
Thu 22/116:45LAX - LHR
1 stop20h 50mTAP AIR PORTUGAL
Deal found 10/11£416
Mon 17/1116:35LGW - LAX
1 stop30h 25mTAP AIR PORTUGAL
Sat 29/1116:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 10/11£416
Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 10/11£418
Wed 3/1218:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Tue 9/1216:45LAX - LHR
1 stop20h 50mTAP AIR PORTUGAL
Deal found 10/11£419
Wed 26/1115:35LHR - LAX
2 stops33h 25mScandinavian Airlines
Wed 3/1219:30LAX - LHR
1 stop14h 10mScandinavian Airlines
Deal found 11/11£420
Wed 3/1213:40LHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 11/11£421
Thu 4/1206:40LHR - LAX
1 stop18h 20mScandinavian Airlines
Wed 10/1219:30LAX - LHR
1 stop15h 00mScandinavian Airlines
Deal found 10/11£424
Mon 17/1113:40LHR - LAX
1 stop33h 20mTAP AIR PORTUGAL
Tue 2/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 11/11£425

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 12 November 2025.

Round-trip from

£392

One-way from

£325

Popular in

December

Cheapest in

September

Average price

£476
Virgin Atlantic
  • Virgin Atlantic
  • 28/3-11/4
  • 2 total stops
  • 28h 57m total
  • London to Pasadena
Search Deals
SWISS
  • SWISS
  • 5/5
  • 1 total stop
  • 15h 00m total
  • London to Pasadena
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£22 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 12 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

LCY - LAX

LCYLAX

London City

Sat 4/4

08:40-14:50

1 stop14h 10m

Los Angeles

Mon 20/4

16:50-16:40

1 stop15h 50m

£432

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 16/4

06:30-11:50

1 stop13h 20m

Los Angeles

Tue 21/4

10:45-08:50

1 stop14h 05m

£435

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

10:20-17:00

1 stop14h 40m

Los Angeles

Mon 16/2

19:30-21:40

1 stop18h 10m

£435

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 13/4

08:40-14:50

1 stop14h 10m

Los Angeles

Tue 21/4

08:00-06:45

1 stop14h 45m

£435

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 13/2

06:30-11:45

1 stop13h 15m

Los Angeles

Sun 22/2

07:20-07:50

1 stop16h 30m

£442

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 23/4

06:30-14:50

1 stop16h 20m

Los Angeles

Sun 26/4

19:35-14:00

Nonstop10h 25m

£452

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Thu 12/3

06:50-19:05

1 stop19h 15m

Los Angeles

Thu 19/3

20:50-22:20

1 stop18h 30m

£453

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 13/2

06:30-11:45

1 stop13h 15m

Los Angeles

Sun 22/2

22:30-16:50

Nonstop10h 20m

£460

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 7/12

06:40-17:00

2 stops18h 20m

Los Angeles

Wed 10/12

19:30-21:35

2 stops18h 05m

£469

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sun 7/12

06:40-17:00

2 stops18h 20m

Los Angeles

Sat 17/1

19:30-21:35

2 stops18h 05m

£469

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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

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 7 November 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 £243). Flying from London to Pasadena in July is currently the most expensive (average of £420). 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 12 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 12 November 2025.

The most flights from LON to P4S are scheduled on a Monday (50 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (42 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 12 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
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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
1,410 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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
673 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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
7,565 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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
7,513 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Overall

7.7

Food

7.3

Boarding

7.8

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?

    Virgin Atlantic, Delta, and Scandinavian Airlines can get you from London to Pasadena in just under 13h 20m. Your travel time can differ by up to 1h 20m. 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 £339 on Finnair. Other airlines that offer cheap prices include British Airways from £341 and United Airlines from £343 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 £2,585 for a flight from London to Pasadena. The cheapest flight overall is £350 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 £243). Flying from London to Pasadena in July is currently the most expensive (average of £420). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Gatwick to Las Vegas flights
Heathrow to Ontario flights
Heathrow to Santa Ana flights
Gatwick to San Francisco flights
London City to Las Vegas flights
Stansted to Los Angeles flights
London City to San Francisco flights
Heathrow to Burbank flights
Luton to Los Angeles flights
Heathrow to San Jose flights
Heathrow to San Diego flights
Heathrow to Oakland flights
Stansted to San Francisco flights
Stansted to Las Vegas flights
Luton to San Francisco flights
Gatwick to San Jose flights
Gatwick to Oakland flights
Gatwick to Santa Ana flights
Gatwick to Burbank flights
Edinburgh to San Francisco flights
Manchester to Las Vegas flights
Luton to Las Vegas flights
Manchester to Los Angeles flights
Gatwick to San Diego flights
Heathrow to Long Beach flights
London City to San Diego flights
Manchester to Santa Ana flights
Manchester to San Francisco flights
Manchester to Ontario flights
London City to Santa Ana flights
Edinburgh to Los Angeles flights
Edinburgh to Las Vegas flights
Manchester to Burbank flights
Stansted to San Diego flights
London City to Burbank flights
Edinburgh to Ontario flights
Newcastle upon Tyne to Las Vegas flights
Newcastle upon Tyne to Los Angeles flights
London City to San Jose flights
Southampton to Los Angeles flights
Edinburgh to Santa Ana flights
Heathrow to Sacramento flights
London City to Oakland flights
Gatwick to Ontario flights
Birmingham to Las Vegas flights

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 12 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£285Average£505FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£298Average£468FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£300Average£533FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£340Average£552FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£343Average£602FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£352Average£481FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£361Average£490FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£363Average£515FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£366Average£489FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£366Average£550FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.