Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to San Clemente from £347

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to San Clemente 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 San Clemente

Enter your travel dates to find the best prices.

Cheapest flights from London to San Clemente
Explore the most affordable flight options available from London to San Clemente. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 November 2025.

Tue 9/1206:00LHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Thu 22/116:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 14/11£407
Wed 3/1216:35LGW - LAX
1 stop30h 05mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LGW
2 stops19h 55mTAP AIR PORTUGAL
Deal found 15/11£412
Wed 3/1218:30LHR - LAX
1 stop28h 10mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Deal found 14/11£419
Thu 4/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Thu 11/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 14/11£423
Wed 3/1213:40LHR - LAX
1 stop33h 00mTAP AIR PORTUGAL
Tue 9/1216:45LAX - LHR
1 stop16h 45mTAP AIR PORTUGAL
Deal found 14/11£428
Sat 6/1210:20LHR - LAX
1 stop14h 40mScandinavian Airlines
Mon 2/319:30LAX - LHR
1 stop15h 00mScandinavian Airlines
Deal found 14/11£436
Mon 17/1116:35LGW - LAX
1 stop30h 25mTAP AIR PORTUGAL
Tue 2/1216:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 15/11£441
Fri 5/1206:40LHR - LAX
1 stop18h 20mScandinavian Airlines
Mon 8/1219:30LAX - LHR
1 stop15h 00mScandinavian Airlines
Deal found 15/11£442
Thu 25/1206:00LHR - LAX
1 stop16h 40mTAP AIR PORTUGAL
Sat 17/116:45LAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Deal found 14/11£445
Mon 15/1210:40LGW - LAX
1 stop36h 20mTAP AIR PORTUGAL
Sat 17/116:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 15/11£472
Wed 17/1209:35LGW - LAX
2 stops37h 05mTAP AIR PORTUGAL
Tue 13/116:45LAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
Deal found 15/11£473
Fri 5/1206:30STN - LAX
1 stop20h 00mMultiple Airlines
Mon 8/1220:15LAX - STN
1 stop17h 05mMultiple Airlines
Deal found 15/11£473

Cheap flight deals from London to San Clemente

Keep the following information in mind while searching for London to San Clemente flight deals. Data was last updated 16 November 2025.

Round-trip from

£399

One-way from

£347

Popular in

December

Cheapest in

September

Average price

£476
Virgin Atlantic
  • Virgin Atlantic
  • 4/4-11/4
  • 2 total stops
  • 27h 57m total
  • London to San Clemente
Search Deals
9/12
  • 9/12
  • 3 total stops
  • 50h 05m total
  • London to San Clemente
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 San Clemente 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 16 November 2025.
Use the filters below to find and compare flights from London to San Clemente that are best for you.

Fly from

London

Fly to

San Clemente

Route

Depart

Return

Price

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Mon 13/4

16:25-14:45

1 stop30h 20m

Los Angeles

Tue 21/4

16:45-09:45

1 stop33h 00m

£460

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Tue 14/4

08:40-21:03

2 stops20h 23m

Los Angeles

Sat 2/5

13:50-13:15

1 stop15h 25m

£462

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 21/2

06:40-17:00

1 stop18h 20m

Los Angeles

Sun 1/3

19:30-18:30

1 stop15h 00m

£464

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Tue 10/2

18:40-16:35

1 stop29h 55m

Los Angeles

Tue 24/2

19:10-17:50

1 stop14h 40m

£465

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 12/2

06:40-17:00

1 stop18h 20m

Los Angeles

Mon 23/2

19:30-21:35

2 stops18h 05m

£465

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Wed 8/4

19:00-11:50

1 stop24h 50m

Los Angeles

Sun 19/4

16:50-18:30

1 stop17h 40m

£467

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 9/12

07:05-17:00

2 stops17h 55m

Los Angeles

Thu 22/1

19:30-09:35

2 stops30h 05m

£469

LondonLos Angeles

LCY - LAX

LCYLAX

London City

Sat 25/4

10:00-21:44

2 stops19h 44m

Los Angeles

Sat 2/5

13:50-13:15

1 stop15h 25m

£475

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 27/3

12:20-21:42

1 stop16h 22m

Los Angeles

Mon 30/3

19:35-14:00

Nonstop10h 25m

£476

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

£480

Flights are sorted by cheapest return flights first.

Deals found on 14/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from London to San Clemente

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

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

Use this chart to determine the optimal time to book a return flight from London to San Clemente. Price data was last updated on 7 November 2025.

To ensure you get the cheapest price possible for a flight from London to San Clemente, you should look to book at least 7 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from London to San Clemente (average of £243). Flying from London to San Clemente in July is currently the most expensive (average of £415). 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 CL3?

Find hourly flight availability from London to San Clemente. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 November 2025.

It’s optimal to fly from London to San Clemente at midday. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from London to San Clemente?

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

Travellers seeking maximum savings on their London to San Clemente 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 San Clemente

Explore weekly flight availability from London to San Clemente. 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 16 November 2025.

The most flights from LON to CL3 are scheduled on a Saturday (52 on average). You will have fewer flight options on Tuesday, 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 San Clemente?

Reviews of airlines servicing San Clemente

Get insights into the airlines that provide service to San Clemente. 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 San Clemente. Reviews last updated 16 November 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andNorse Atlantic UK from London to San Clemente by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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
7,574 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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
7,526 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Comfort

7.7

Food

7.3

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 San Clemente. 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 San Clemente?

    A quick flight from London to San Clemente can take about 18h 20m. TAP AIR PORTUGAL provides one of the quickest options available for as low as £464. London and San Clemente 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 San Clemente one-way?

    One-way options have recently been found by users for as low as £352 on SWISS. Other airlines that offer cheap prices include Lufthansa from £353 and United Airlines from £353 one-way.

  • What are the most popular routes from London to San Clemente?

    The most popular flight routes from London to San Clemente are London Heathrow - Los Angeles, London Gatwick - Los Angeles and London City - Los Angeles.

  • What are the most reliable airlines from London to San Clemente?

    No one likes to see their flight delayed. When booking a flight from London to San Clemente consider choosing KLM (87%), Air France (83%) or Delta (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to San Clemente?

    Looking at all options, your cheapest flight can be booked for £350. While the most popular route (London Heathrow - Los Angeles) can be booked for £392 on average, our data indicates £2,581 when flying from London to San Clemente.

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

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

  • How can I find direct flights from London to San Clemente?

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

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

    Yes. Cheapflights offers flight deals from London to San Clemente 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 San Clemente?

    Currently, September is the cheapest month in which you can book a flight from London to San Clemente (average of £243). Flying from London to San Clemente in July is currently the most expensive (average of £415). 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 San Clemente

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
Gatwick to San Francisco flights
London City to Las Vegas flights
Stansted to Los Angeles flights
Heathrow to Santa Ana flights
London City to San Francisco flights
Luton to Los Angeles flights
Heathrow to San Jose flights
Heathrow to Burbank flights
Heathrow to Oakland flights
Heathrow to San Diego flights
Stansted to San Francisco flights
Stansted to Las Vegas flights
Luton to San Francisco flights
Gatwick to San Jose flights
Gatwick to Santa Ana flights
Gatwick to Oakland flights
Gatwick to Burbank flights
Manchester to Las Vegas flights
Manchester to Los Angeles flights
Gatwick to San Diego flights
London City to San Diego flights
Luton to Las Vegas flights
Heathrow to Long Beach flights
Manchester to Santa Ana flights
Stansted to San Diego flights
Manchester to Ontario flights
Manchester to San Francisco flights
Edinburgh to Los Angeles flights
Edinburgh to San Francisco flights
Birmingham to Las Vegas flights
Southampton to Los Angeles flights
London City to Burbank flights
Manchester to Burbank flights
Edinburgh to Ontario flights
London City to Santa Ana flights
Newcastle upon Tyne to Los Angeles flights
Birmingham to San Francisco flights
Edinburgh to Las Vegas flights
Edinburgh to Santa Ana flights
Gatwick to Ontario flights
Heathrow to Sacramento flights
London City to San Jose flights
London City to Oakland flights

Top 10 airlines flying from London to San Clemente

Discover the top 10 airlines that operate flights from London to San Clemente. 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 16 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£284Average£518FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£297Average£467FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Norse Atlantic UKCheapest£299Average£532FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£340Average£551FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£342Average£601FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£351Average£480FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£361Average£489FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air FranceCheapest£365Average£461FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£366Average£561FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£366Average£562FlexibilityNo 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 San Clemente?

When you search for this flight from London to San Clemente, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to San Clemente from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to San Clemente from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on London to San Clemente 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.