Cheap flights from London to Carlsbad, California from £366

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Carlsbad are usually found in September or February, booked 7 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Carlsbad

Keep the following information in mind while searching for London to Carlsbad flight deals. Data was last updated 25 November 2025.

Round-trip from

£431

One-way from

£366

Popular in

December

Cheapest in

September

Average price

£485
Virgin Atlantic
  • Virgin Atlantic
  • 12/2-21/2
  • 2 total stops
  • 44h 35m total
  • London to Carlsbad
8/1
  • 8/1
  • 3 total stops
  • 47h 43m total
  • London to Carlsbad
Highest demand for flights based on searches. 6% potential increase in price (£24 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in November 2025

Find flight deals from London to Carlsbad

Enter your travel dates to find the best prices.

Cheapest flights from London to Carlsbad
Explore the most affordable flight options available from London to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 November 2025.

Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop20h 50mTAP AIR PORTUGAL
Deal found 22/11£442
Thu 4/1210:05LHR - LAX
1 stop16h 07mMultiple Airlines
Thu 11/1219:15LAX - LHR
Nonstop10h 45mMultiple Airlines
Deal found 24/11£450
Tue 9/1207:05LHR - LAX
2 stops17h 55mScandinavian Airlines
Thu 22/119:30LAX - LHR
1 stop29h 50mScandinavian Airlines
Deal found 23/11£451
Sun 14/1207:50LHR - LAX
1 stop18h 40mBritish Airways
Tue 13/109:50LAX - LHR
1 stop13h 00mBritish Airways
Deal found 24/11£454
Sat 13/1209:35LHR - LAX
1 stop17h 14mAmerican Airlines
Tue 3/300:37LAX - LHR
1 stop13h 33mAmerican Airlines
Deal found 24/11£455
Sun 7/1216:55LHR - LAX
Nonstop11h 30mBritish Airways
Tue 23/1219:15LAX - LHR
Nonstop10h 45mBritish Airways
Deal found 24/11£456
Sun 14/1207:50LHR - LAX
1 stop18h 40mBritish Airways
Thu 19/214:37LAX - LHR
1 stop13h 38mBritish Airways
Deal found 24/11£456
Mon 15/1207:50LHR - LAX
1 stop18h 40mBritish Airways
Thu 8/107:55LAX - LHR
1 stop15h 05mBritish Airways
Deal found 24/11£457
Sun 7/1216:55LHR - LAX
Nonstop11h 30mAmerican Airlines
Tue 23/1219:15LAX - LHR
Nonstop10h 45mAmerican Airlines
Deal found 24/11£460
Thu 4/1216:55LHR - LAX
Nonstop11h 30mAmerican Airlines
Wed 10/1200:15LAX - LHR
1 stop13h 55mAmerican Airlines
Deal found 24/11£460
Mon 15/1216:35LGW - LAX
1 stop30h 25mTAP AIR PORTUGAL
Thu 19/218:55LAX - LGW
1 stop36h 50mTAP AIR PORTUGAL
Deal found 24/11£465
Mon 15/1209:10LCY - LAX
1 stop17h 20mBritish Airways
Thu 8/120:15LAX - LCY
1 stop14h 20mBritish Airways
Deal found 24/11£484

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Carlsbad 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 25 November 2025.
Use the filters below to find and compare flights from London to Carlsbad that are best for you.

Fly from

London

Fly to

Carlsbad

Route

Depart

Return

Price

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Thu 12/3

06:50-19:05

1 stop19h 15m

Los Angeles

Tue 24/3

18:30-20:10

2 stops18h 40m

£444

LondonLos Angeles

SEN - LAX

SENLAX

London Southend

Thu 12/2

06:50-18:05

1 stop19h 15m

Los Angeles

Thu 19/2

19:50-21:25

2 stops17h 35m

£453

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 24/4

06:30-11:50

1 stop13h 20m

Los Angeles

Sat 2/5

22:35-17:00

Nonstop10h 25m

£454

LondonLos Angeles

STN - LAX

STNLAX

London Stansted

Sat 14/3

21:10-18:05

2 stops27h 55m

Los Angeles

Sun 22/3

19:50-20:05

2 stops17h 15m

£458

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Thu 12/3

06:50-19:05

1 stop19h 15m

Los Angeles

Mon 23/3

18:30-20:10

2 stops18h 40m

£459

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 13/1

19:50-17:00

2 stops29h 10m

Los Angeles

Thu 22/1

19:30-09:35

2 stops30h 05m

£468

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 4/2

09:00-16:35

1 stop15h 35m

Los Angeles

Mon 9/2

11:02-09:40

1 stop14h 38m

£469

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Wed 4/2

06:50-18:30

1 stop19h 40m

Los Angeles

Sun 8/2

12:12-20:00

2 stops23h 48m

£469

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/2

06:30-13:05

1 stop14h 35m

Los Angeles

Mon 16/2

19:00-13:30

Nonstop10h 30m

£472

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 9/12

09:00-16:35

1 stop15h 35m

Los Angeles

Thu 22/1

19:00-13:30

Nonstop10h 30m

£479

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 60 results
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Best time to book a flight from London to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad 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 Carlsbad

How far ahead should I book a flight from London to Carlsbad?

Use this chart to determine the optimal time to book a return flight from London to Carlsbad. Price data was last updated on 21 November 2025.

The best time to book flights from London to Carlsbad is 7 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Carlsbad?

Currently, September is the cheapest month in which you can book a flight from London to Carlsbad (average of £244). Flying from London to Carlsbad in July is currently the most expensive (average of £413). 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 C4D?

Find hourly flight availability from London to Carlsbad. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 November 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 8% on flights from London to Carlsbad by exploring options for tickets at midday.

What is the cheapest day to fly from London to Carlsbad?

Use this chart to determine the cheapest time to fly return from London to Carlsbad. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Carlsbad 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 Carlsbad

Explore weekly flight availability from London to Carlsbad. 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 25 November 2025.

The most flights from LON to C4D are scheduled on a Saturday (52 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (33 on average).

Reviews of airlines servicing Carlsbad

Get insights into the airlines that provide service to Carlsbad. 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 Carlsbad. Reviews last updated 25 November 2025.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andNorse Atlantic UK from London to Carlsbad. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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.

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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.

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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.

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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.

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.6

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 Carlsbad. 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 Carlsbad?

    Airlines like Scandinavian Airlines, United Airlines, and British Airways fly from London to Carlsbad in about 15h 35m. The time it takes to get you to your destination can typically vary by up to 13h 35m. There are 5439 mi between London and Carlsbad. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to Carlsbad one-way?

    £367 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on British Airways and United Airlines, with prices starting from £375 and £383, respectively.

  • What are the most popular routes from London to Carlsbad?

  • What are the most reliable airlines from London to Carlsbad?

    Consider SriLankan Airlines (82%), KLM (82%) or Air Canada (82%) when booking your flight. These represent the most reliable airlines when flying from London to Carlsbad.

  • What are the cheapest flights from London to Carlsbad?

    On average you can expect to pay £2,597 for a flight from London to Carlsbad. The cheapest flight overall is £352 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £358.

  • Can I find deals for flights from London to Carlsbad that include hotel bookings?

    Yes. In addition to deals on London to Carlsbad flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Carlsbad?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Carlsbad.

  • Can I find deals for business class flights from London to Carlsbad?

    Yes. Cheapflights offers flight deals from London to Carlsbad 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 Carlsbad?

    Currently, September is the cheapest month in which you can book a flight from London to Carlsbad (average of £244). Flying from London to Carlsbad in July is currently the most expensive (average of £413). 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 Carlsbad

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from London to Carlsbad

Discover the top 10 airlines that operate flights from London to Carlsbad. 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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£286Average£522FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£299Average£470FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£301Average£536FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£342Average£554FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£345Average£605FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£353Average£483FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£363Average£492FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£367Average£463FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£368Average£564FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£368Average£565FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Carlsbad?

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Can Cheapflights find flights from London to Carlsbad with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Carlsbad, users can toggle the no change fees filter when performing a flight search.

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Of course! You can now track prices for flights from London to Carlsbad and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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