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Cheap flights from London to Carlsbad, California from £354

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
25 Jan — 1 Feb1
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 Thursday and return on a Monday

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 26 December 2025.

Wed 31/1216:20LHR - LAX
2 stops25h 16mUnited Airlines
Thu 8/113:38LAX - LHR
1 stop14h 22mUnited Airlines
Deal found 24/12£416
Wed 31/1213:35LHR - LAX
2 stops30h 29mLufthansa
Wed 7/108:33LAX - LHR
1 stop13h 22mLufthansa
Deal found 24/12£428
Wed 31/1207:35LHR - LAX
1 stop17h 00mIberia
Thu 19/311:25LAX - LHR
1 stop15h 15mIberia
Deal found 24/12£446
Wed 31/1213:35LHR - LAX
2 stops30h 29mMultiple Airlines
Wed 7/119:00LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 24/12£477
Wed 24/1216:45LCY - LAX
1 stop28h 45mITA Airways
Wed 31/1215:20LAX - LCY
2 stops22h 30mITA Airways
Deal found 23/12£484
Tue 30/1206:00LHR - LAX
1 stop18h 35mSWISS
Tue 13/119:10LAX - LHR
1 stop28h 55mSWISS
Deal found 24/12£487
Tue 30/1206:00LHR - LAX
1 stop18h 35mMultiple Airlines
Fri 23/108:20LAX - LHR
1 stop14h 00mMultiple Airlines
Deal found 24/12£504
Mon 29/1218:40LHR - LAX
1 stop29h 55mMultiple Airlines
Wed 7/108:33LAX - LHR
1 stop13h 22mMultiple Airlines
Deal found 23/12£505
Wed 31/1207:35LHR - LAX
1 stop17h 00mMultiple Airlines
Wed 14/113:00LAX - LHR
1 stop12h 40mMultiple Airlines
Deal found 24/12£508
Mon 29/1217:10LHR - LAX
1 stop31h 25mMultiple Airlines
Wed 21/119:00LAX - LHR
Nonstop10h 30mMultiple Airlines
Deal found 24/12£509
Tue 30/1209:15LCY - LAX
1 stop15h 20mSWISS
Thu 15/119:10LAX - LCY
1 stop13h 55mSWISS
Deal found 23/12£522
Wed 24/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Sat 28/216:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 23/12£528

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 26 December 2025.

Round-trip from

£410

One-way from

£354

Popular in

December

Cheapest in

September

Average price

£589
American Airlines
  • American Airlines
  • 22/6-12/7
  • 2 total stops
  • 28h 35m total
  • London to Carlsbad
Search Deals
3/2
  • 3/2
  • 3 total stops
  • 33h 13m total
  • London to Carlsbad
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 26 December 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

LHR - LAX

LHRLAX

London Heathrow

Sat 25/4

06:00-18:39

2 stops20h 39m

Los Angeles

Mon 27/4

15:05-12:40

1 stop13h 35m

£414

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 27/5

10:45-18:02

1 stop15h 17m

Los Angeles

Sun 31/5

20:15-17:20

1 stop13h 05m

£414

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 15/1

14:25-16:35

2 stops34h 10m

Los Angeles

Wed 28/1

11:40-16:20

2 stops20h 40m

£417

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 25/4

15:05-21:03

1 stop13h 58m

Los Angeles

Sat 2/5

08:05-09:35

2 stops17h 30m

£420

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 25/4

09:30-21:03

2 stops19h 33m

Los Angeles

Mon 27/4

06:30-10:00

2 stops19h 30m

£421

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Sun 8/2

08:05-18:30

1 stop18h 25m

Los Angeles

Sun 15/2

20:15-22:00

1 stop17h 45m

£423

LondonLos Angeles

LTN - LAX

LTNLAX

London Luton

Thu 15/1

09:00-18:30

1 stop17h 30m

Los Angeles

Wed 28/1

20:15-17:05

1 stop12h 50m

£426

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 20/6

06:55-15:15

1 stop16h 20m

Los Angeles

Mon 13/7

17:30-17:05

1 stop15h 35m

£426

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 25/4

09:30-18:39

2 stops17h 09m

Los Angeles

Sat 2/5

08:05-09:35

2 stops17h 30m

£426

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Thu 22/1

17:50-11:45

1 stop25h 55m

Los Angeles

Thu 29/1

08:09-09:30

2 stops17h 21m

£428

Flights are sorted by cheapest return flights first.

Deals found on 25/12

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 19 December 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 £237). Flying from London to Carlsbad in July is currently the most expensive (average of £399). 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 26 December 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from London to Carlsbad by exploring options for tickets in the evening.

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 26 December 2025.

The most flights from LON to C4D are scheduled on a Monday (46 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (35 on average).

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

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 26 December 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.
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
677 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,656 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,617 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Comfort

7.6

Boarding

7.7

Food

7.2

Overall

7.7

Crew

8.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 British Airways, SWISS, and Air Canada fly from London to Carlsbad in about 13h 58m. The time it takes to get you to your destination can typically vary by up to 20h 12m. 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?

    £163 is the cheapest one-way deal found within the past few days, from Norse Atlantic UK. You may also be able to find cheap deals on TAP AIR PORTUGAL and Scandinavian Airlines, with prices starting from £243 and £249, respectively.

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

    Most travelers choose London Heathrow - Los Angeles, London Gatwick - Los Angeles or London City - 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 (94%), Air Canada (92%) or Austrian Airlines (92%) 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 £2,681 for a flight from London to Carlsbad. The cheapest flight overall is £350 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £326.

  • 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 £237). Flying from London to Carlsbad in July is currently the most expensive (average of £399). 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

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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 26 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£237Average£544FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£277Average£514FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£290Average£448FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£292Average£522FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£332Average£1,071FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£334Average£536FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£335Average£450FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£355Average£479FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£355Average£455FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£356Average£528FlexibilityNo 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 Carlsbad?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Carlsbad from London today with Cheapflights!

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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