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Cheap flights from London to San Diego from £452

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
13 Aug — 20 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to San Diego are usually found in January or February, booked 84 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap flight deals from London to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2026.

Sat 5/914:00
LGW
-
SAN
1 stop38h 31m
Multiple Airlines
Mon 21/919:59
SAN
-
LGW
2 stops26h 21m
Multiple Airlines
Deal found 14/7£610
Wed 7/1007:30
LHR
-
SAN
2 stops21h 09m
Lufthansa
Wed 21/1014:24
SAN
-
LHR
2 stops19h 16m
Lufthansa
Deal found 14/7£615
Fri 9/1014:00
LGW
-
SAN
1 stop27h 40m
Multiple Airlines
Sat 17/1020:32
SAN
-
LGW
2 stops29h 28m
Multiple Airlines
Deal found 14/7£618
Mon 7/906:55
LHR
-
SAN
1 stop16h 30m
United Airlines
Mon 28/906:15
SAN
-
LHR
2 stops17h 00m
United Airlines
Deal found 14/7£618
Fri 13/1112:35
LGW
-
SAN
1 stop29h 00m
Multiple Airlines
Thu 26/1122:13
SAN
-
LGW
1 stop26h 02m
Multiple Airlines
Deal found 13/7£618
Tue 1/909:25
LGW
-
SAN
2 stops20h 45m
SWISS
Tue 22/906:42
SAN
-
LGW
2 stops17h 43m
SWISS
Deal found 13/7£619
Thu 3/914:00
LGW
-
SAN
1 stop38h 31m
Multiple Airlines
Fri 25/914:20
SAN
-
LGW
1 stop32h 00m
Multiple Airlines
Deal found 13/7£621
Mon 7/920:55
LHR
-
SAN
1 stop22h 55m
Virgin Atlantic
Thu 17/919:58
SAN
-
LHR
1 stop13h 37m
Virgin Atlantic
Deal found 14/7£623
Tue 1/909:15
LCY
-
SAN
2 stops19h 19m
Lufthansa
Tue 22/914:24
SAN
-
LCY
2 stops19h 31m
Lufthansa
Deal found 13/7£629
Sun 1/1120:15
LHR
-
SAN
1 stop27h 30m
Lufthansa
Tue 10/1112:39
SAN
-
LHR
2 stops16h 11m
Lufthansa
Deal found 14/7£629
Thu 3/907:25
LHR
-
SAN
1 stop16h 00m
Lufthansa
Tue 22/912:37
SAN
-
LHR
1 stop15h 48m
Lufthansa
Deal found 10/7£629
Thu 3/908:45
LHR
-
SAN
2 stops19h 54m
Air Canada
Wed 16/907:00
SAN
-
LHR
1 stop15h 30m
Air Canada
Deal found 12/7£630

Find flight deals from London to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 July 2026.

Round-trip from

£615

One-way from

£452

Popular in

July

Cheapest in

January

Average price

£837

Good round-trip deal

£612 or less

Good one-way deal

£397 or less
Lufthansa
  • Lufthansa
  • 7/10-21/10
  • 4 total stops
  • 40h 25m total
  • London to San Diego
Search Deals
23/8
  • 23/8
  • 3 total stops
  • 37h 15m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£75 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to San Diego.
Search Deals
Price to beat on a one-way flight from London (LON) to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to San Diego 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 14 July 2026.
Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Sat 5/9

14:00-20:31

1 stop38h 31m

San Diego

Mon 21/9

14:20-06:20

1 stop32h 00m

£616

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 12/9

06:55-17:10

2 stops18h 15m

San Diego

Thu 17/9

06:35-07:15

1 stop16h 40m

£653

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 10/9

10:50-22:47

2 stops19h 57m

San Diego

Mon 21/9

19:41-21:25

2 stops17h 44m

£654

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 25/9

07:30-18:35

2 stops19h 05m

San Diego

Tue 6/10

08:00-06:55

1 stop14h 55m

£654

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 3/9

14:00-20:31

1 stop38h 31m

San Diego

Wed 16/9

09:34-10:00

1 stop16h 26m

£659

LondonSan Diego

LCY - SAN

LCYSAN

London City

Sat 5/9

09:00-22:08

2 stops21h 08m

San Diego

Mon 21/9

06:18-12:35

2 stops22h 17m

£663

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Wed 16/9

14:00-20:31

1 stop38h 31m

San Diego

Fri 25/9

14:20-06:20

1 stop32h 00m

£674

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 7/9

09:20-20:16

2 stops18h 56m

San Diego

Mon 21/9

06:15-07:55

2 stops17h 40m

£680

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 14/11

10:20-22:55

2 stops20h 35m

San Diego

Mon 16/11

15:59-21:20

3 stops21h 21m

£690

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 26/10

09:00-22:27

2 stops20h 27m

San Diego

Fri 6/11

08:45-09:10

2 stops16h 25m

£690

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to San Diego

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

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

Currently, February is the cheapest month in which you can book a flight from London to San Diego (average of £344). Flying from London to San Diego in July is currently the most expensive (average of £484). 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 SAN?

Find hourly flight availability from London to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to San Diego as you normally would.

Weekly flight availability from London to San Diego

Explore weekly flight availability from London to San Diego. 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 14 July 2026.

The most flights from LON to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

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

What’s the top stopover airport for flights from London to San Diego?

Share of one-stop return flights from London to San Diego chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Denver (DEN) – chosen by Cheapflights users on 55% of one-stop itineraries from London to San Diego on Cheapflights.

What’s the cheapest stopover airport for flights from London to San Diego?

Average return fare for one-stop flights from London to San Diego, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £456.

What’s the fastest stopover option from London to San Diego?

Shortest average travel time for one-stop one-way flights from London to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Salt Lake City (SLC) have the shortest average one-way travel time for one-stop routes: 13h 24m.

Which airport typically offers the quickest stopover for flights from London to San Diego?

Average stopover duration for one-stop one-way flights from London to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average stopover time of 0h 59m.

How often are flights from London to San Diego delayed?

About 16% of weekly flights between London and San Diego have experienced delays in the past year, with the average delay time being 146 minutes.

What is the most punctual flight time for London to San Diego flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to San Diego flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 16% of flights being delayed.

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

The best time to book flights from London to San Diego is 80 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.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated 14 July 2026.
Read through reviews of airlines operating flights from London to San Diego, such as Virgin Atlantic,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

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
693 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

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
9,988 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
American Airlines
7.1
Good
11,810 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

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
8,134 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

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
8,111 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Overall

7.5

Comfort

7.3

Entertainment

7.5

Food

6.9

Crew

8.1

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 San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from London?

    If you book a flight to San Diego from London, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 8 flights from London to San Diego per day from 10 different airlines.

  • How long is the flight from London to San Diego?

    Departing from London to San Diego will take you 18h 15m. London and San Diego are separated by a distance of 5469 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London to San Diego round-trip?

    According to our current data, JetBlue (£425), Lufthansa (£428), and Iberia (£434) offers the cheapest pricing from London to San Diego. JetBlue is 35% cheaper than the average price of flights available within the next 90 days to this destination.

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

    £305 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on JetBlue and British Airways, with prices starting from £311 and £391, respectively.

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

    When deciding which route to take from London to San Diego consider London Heathrow - San Diego, London Gatwick - San Diego or London City - San Diego as they are the most popular.

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

    Consider American Airlines (83%), Alaska Airlines (83%) or British Airways (83%) when booking your flight. These represent the most reliable airlines when flying from London to San Diego.

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

    Looking at all options, your cheapest flight can be booked for £394. While the most popular route (London Heathrow - San Diego) can be booked for £500 on average, our data indicates £801 when flying from London to San Diego.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from London to San Diego (average of £344). Flying from London to San Diego in July is currently the most expensive (average of £484). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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Fly from London to San Diego on these airlines

Choose from the following airlines for your flight from London to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 14 July 2026.
British Airways flights from London to San Diego
Virgin Atlantic flights from London to San Diego
Finnair flights from London to San Diego

Top 10 airlines flying from London to San Diego

Discover the top 10 airlines that operate flights from London to San Diego. 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 14 July 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£425Average£716FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£428Average£577FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£434Average£581FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£441Average£595FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£456Average£786FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£470Average£652FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£479Average£666FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£491Average£744FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£565Average£707FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£752Average£976FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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 Diego?

Cheapflights makes it easy to find London to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from London.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Diego flexibly with Cheapflights today.

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

Yes! Start tracking prices for London to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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