Cheap flights from London to Carlsbad, California from £337

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
21 Mar — 28 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Carlsbad are usually found in September or February, booked 37 days in advance, depart on a Wednesday 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 19 February 2026.

Tue 24/209:00
LHR
-
LAX
1 stop15h 35m
SWISS
Sun 1/319:10
LAX
-
LHR
1 stop14h 40m
SWISS
Deal found 15/2£346
Wed 25/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Sat 7/319:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 18/2£347
Mon 2/306:00
LHR
-
LAX
1 stop18h 35m
Multiple Airlines
Mon 16/320:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 17/2£348
Fri 6/309:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Sun 8/320:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 17/2£348
Thu 26/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Fri 6/319:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 15/2£349
Mon 23/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Mon 2/314:20
LAX
-
LHR
1 stop12h 55m
Multiple Airlines
Deal found 16/2£350
Sun 22/220:05
LHR
-
LAX
1 stop28h 30m
Multiple Airlines
Sat 7/319:00
LAX
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 15/2£351
Fri 6/318:40
LGW
-
LAX
1 stop29h 55m
SWISS
Mon 9/320:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 18/2£351
Thu 26/209:00
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Wed 11/308:45
LAX
-
LHR
1 stop14h 10m
Multiple Airlines
Deal found 18/2£351
Wed 4/318:40
LGW
-
LAX
1 stop29h 55m
SWISS
Tue 10/320:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 18/2£353
Mon 2/318:40
LGW
-
LAX
1 stop29h 55m
SWISS
Mon 16/320:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 15/2£359
Thu 5/318:40
LGW
-
LAX
1 stop29h 55m
SWISS
Mon 9/320:10
LAX
-
LGW
1 stop14h 40m
SWISS
Deal found 17/2£360

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 19 February 2026.

Round-trip from

£346

One-way from

£337

Popular in

December

Cheapest in

September

Average price

£395
SWISS
  • SWISS
  • 3/3-10/3
  • 2 total stops
  • 30h 15m total
  • London to Carlsbad
9/3
  • 9/3
  • 2 total stops
  • 31h 22m total
  • London to Carlsbad
Highest demand for flights based on searches. 6% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in February 2026

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 19 February 2026.
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

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Tue 10/3

20:00-13:30

Nonstop10h 30m

£354

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 13/3

09:00-17:35

1 stop15h 35m

Los Angeles

Sun 22/3

20:00-13:30

Nonstop10h 30m

£354

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Mon 9/3

11:08-09:40

1 stop15h 32m

£354

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 3/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sun 8/3

06:30-11:50

1 stop22h 20m

£354

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 4/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sat 14/3

20:00-13:30

Nonstop10h 30m

£356

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 4/3

09:00-16:35

1 stop15h 35m

Los Angeles

Sun 8/3

20:00-13:30

Nonstop10h 30m

£357

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 22/4

08:40-16:30

1 stop15h 50m

Los Angeles

Sun 26/4

15:30-10:10

Nonstop10h 40m

£368

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 6/5

08:40-16:30

1 stop15h 50m

Los Angeles

Wed 20/5

15:30-10:10

Nonstop10h 40m

£369

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 17/4

06:55-15:15

1 stop16h 20m

Los Angeles

Sat 25/4

15:30-10:10

Nonstop10h 40m

£370

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Mon 2/3

17:25-15:55

2 stops30h 30m

Los Angeles

Sat 14/3

23:10-22:10

1 stop16h 00m

£374

Flights are sorted by cheapest return flights first.

Deals found on 18/2

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 18 February 2026.

The best time to book flights from London to Carlsbad is 37 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 £236). Flying from London to Carlsbad in July is currently the most expensive (average of £386). 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 19 February 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 19 February 2026.

The most flights from LON to C4D are scheduled on a Wednesday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 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 19 February 2026.
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.

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Norse Atlantic UK
7.3
Good

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Crew

8.4

Entertainment

7.1

Comfort

7.6

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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, Delta, 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 40h 40m. 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?

    £162 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 £244 and £248, respectively.

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

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

    Consider SriLankan Airlines (93%), Royal Jordanian (87%) or Air Canada (87%) 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 £2,634 for a flight from London to Carlsbad. The cheapest flight overall is £343 while the most popular route, (London Heathrow - Los Angeles) is currently priced at £285.

  • 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 £236). Flying from London to Carlsbad in July is currently the most expensive (average of £386). 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 19 February 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£236Average£552FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£275Average£540FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£277Average£517FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£278Average£494FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Brussels AirlinesCheapest£330Average£475FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Aer LingusCheapest£331Average£772FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£333Average£521FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£336Average£526FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£338Average£456FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£341Average£505FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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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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