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Cheap flights from London to Carlsbad, California from £363

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Carlsbad 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 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 8 August 2026.

Fri 21/807:25 -
1 stop15h 50m
Mon 31/815:35 -
Nonstop10h 35m
Deal found 7/8£430
Wed 9/909:25 -
1 stop15h 05m
Tue 6/1019:35 -
1 stop14h 15m
Deal found 8/8£430
Fri 25/906:00 -
1 stop15h 05m
Sat 10/1015:40 -
Nonstop10h 30m
Deal found 6/8£431
Sat 10/1010:25 -
1 stop16h 19m
Mon 19/1018:25 -
1 stop31h 00m
Deal found 7/8£431
Mon 5/1008:20 -
Nonstop11h 15m
Mon 26/1010:45 -
1 stop13h 05m
Deal found 7/8£432
Sat 10/1010:25 -
1 stop16h 19m
Fri 23/1018:00 -
1 stop32h 00m
Deal found 7/8£432
Fri 13/1115:20 -
Nonstop11h 25m
Sun 15/1118:55 -
Nonstop10h 35m
Deal found 7/8£433
Thu 29/1018:40 -
1 stop29h 55m
Sun 22/1119:10 -
1 stop14h 40m
Deal found 3/8£433
Sat 5/913:05 -
Nonstop11h 05m
Sat 12/915:40 -
Nonstop10h 30m
Deal found 7/8£433
Tue 8/910:35 -
1 stop16h 05m
Tue 15/918:25 -
1 stop31h 00m
Deal found 8/8£433
Wed 23/916:25 -
1 stop30h 50m
Mon 28/917:30 -
1 stop14h 05m
Deal found 6/8£433
Tue 22/918:05 -
1 stop30h 25m
Tue 29/919:35 -
1 stop29h 05m
Deal found 8/8£434

Find flight deals from London to Carlsbad

Keep the following information in mind while searching for London to Carlsbad flight deals. Data was last updated 8 August 2026.

Round-trip from

£430

One-way from

£363

Popular in

December

Cheapest in

February

Average price

£527
Lufthansa
  • Lufthansa
  • 21/8-31/8
  • 1 total stop
  • 26h 25m total
  • London to Carlsbad
Search Deals
United Airlines
  • United Airlines
  • 21/9
  • Nonstop
  • 11h 20m total
  • London to Carlsbad
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 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 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 8 August 2026.
Use the filters below to find and compare flights from London to Carlsbad that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Sun 18/10

13:05-16:25

Nonstop11h 20m

Los Angeles Los Angeles

Wed 28/10

19:55-13:30

Nonstop10h 35m

£436

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Mon 7/9

08:20-11:45

Nonstop11h 25m

Los Angeles Los Angeles

Sun 13/9

13:21-10:50

1 stop13h 29m

£436

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Sat 5/9

13:05-16:10

Nonstop11h 05m

Los Angeles Los Angeles

Fri 18/9

15:40-10:10

Nonstop10h 30m

£437

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Mon 7/9

06:30-11:50

1 stop13h 20m

Los Angeles Los Angeles

Sun 13/9

17:55-15:35

1 stop13h 40m

£441

LondonLos Angeles

LTN London Luton - LAX Los Angeles Los Angeles

LTNLAX

London Luton

Sat 26/9

12:45-13:30

2 stops32h 45m

Los Angeles Los Angeles

Sat 10/10

16:55-23:40

2 stops22h 45m

£442

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Fri 18/9

13:05-16:25

Nonstop11h 20m

Los Angeles Los Angeles

Fri 25/9

15:40-10:10

Nonstop10h 30m

£454

LondonLos Angeles

LGW London Gatwick - LAX Los Angeles Los Angeles

LGWLAX

London Gatwick

Thu 10/9

10:25-18:40

1 stop16h 15m

Los Angeles Los Angeles

Sun 11/10

18:25-16:00

1 stop13h 35m

£457

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Fri 28/8

06:00-13:05

1 stop15h 05m

Los Angeles Los Angeles

Mon 7/9

15:35-10:10

Nonstop10h 35m

£458

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Sat 17/10

08:20-11:35

Nonstop11h 15m

Los Angeles Los Angeles

Mon 2/11

18:25-13:05

Nonstop10h 40m

£462
Fastest return journey

LondonLos Angeles

LHR London Heathrow - LAX Los Angeles Los Angeles

LHRLAX

London Heathrow

Thu 3/9

13:05-16:10

Nonstop11h 05m

Los Angeles Los Angeles

Wed 16/9

15:40-10:10

Nonstop10h 30m

£463

Flights are sorted by cheapest return flights first.

Deals found on 7/8

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 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

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 8 August 2026.

When flying from London to Carlsbad, 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 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 8 August 2026.

The most flights from LON to C4D are scheduled on a Wednesday (62 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

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

Airfare is below average for this route at the moment.
London to Carlsbad flights typically cost between £456 and £617 in August.
The cheapest return price found within the last 5 days was £430 on Lufthansa (21 Aug–31 Aug).

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

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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
10,087 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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
8,177 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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
8,153 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

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 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 United Airlines, British Airways, and Delta fly from London to Carlsbad in about 11h 20m. The time it takes to get you to your destination can typically vary by up to 2h. 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?

    £169 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Norse Atlantic UK and TAP AIR PORTUGAL, with prices starting from £190 and £246, respectively.

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

    Most travelers choose London Heathrow - Los Angeles Los Angeles, London Gatwick - Los Angeles Los Angeles or London City - Los Angeles Los Angeles when deciding on the best route from London to Carlsbad.

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

    Consider SriLankan Airlines (100%), Malaysia Airlines (92%) or Fiji Airways (89%) 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 £2,203 for a flight from London to Carlsbad. The cheapest flight overall is £309 while the most popular route, (London Heathrow - Los Angeles Los Angeles) is currently priced at £324.

  • 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.

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.
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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 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£293Average£540FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
United AirlinesCheapest£302Average£528FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£331Average£680FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£337Average£489FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£338Average£461FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapest£338Average£582FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Brussels AirlinesCheapest£344Average£468FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
SWISSCheapest£345Average£498FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£350Average£484FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£351Average£479FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL 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 Carlsbad?

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Why should you use Cheapflights to find cheap flight tickets from London to Carlsbad?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Carlsbad.

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.

Can Cheapflights notify me if prices for flights from London to Carlsbad become cheaper?

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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