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Cheap flights from London to San Diego from £423

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
2 Jul — 9 Jul1
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 65 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 2 June 2026.

Sat 31/1012:50
LHR
-
SAN
Nonstop11h 20m
American Airlines
Mon 9/1110:48
SAN
-
LHR
1 stop15h 12m
American Airlines
Deal found 31/5£692
Sat 21/1108:20
LHR
-
SAN
1 stop15h 34m
British Airways
Fri 27/1118:00
SAN
-
LHR
Nonstop10h 35m
British Airways
Deal found 30/5£693
Mon 13/712:20
LGW
-
SAN
1 stop28h 49m
JetBlue
Tue 28/720:40
SAN
-
LGW
1 stop28h 55m
JetBlue
Deal found 30/5£694
Tue 7/709:30
LHR
-
SAN
1 stop20h 14m
Air Canada
Thu 16/708:15
SAN
-
LHR
2 stops17h 45m
Air Canada
Deal found 29/5£694
Mon 13/712:20
LGW
-
SAN
1 stop28h 49m
JetBlue
Fri 24/720:40
SAN
-
LGW
1 stop28h 55m
JetBlue
Deal found 31/5£695
Sun 5/719:30
LHR
-
SAN
2 stops31h 02m
Lufthansa
Mon 13/710:49
SAN
-
LHR
1 stop15h 21m
Lufthansa
Deal found 30/5£695
Sat 27/612:20
LGW
-
SAN
1 stop28h 50m
JetBlue
Mon 13/720:40
SAN
-
LGW
1 stop28h 55m
JetBlue
Deal found 31/5£696
Mon 29/615:05
LHR
-
SAN
1 stop13h 53m
Lufthansa
Mon 6/711:55
SAN
-
LHR
1 stop15h 15m
Lufthansa
Deal found 30/5£696
Wed 17/612:20
LGW
-
SAN
1 stop28h 50m
JetBlue
Wed 15/720:40
SAN
-
LGW
1 stop28h 55m
JetBlue
Deal found 2/6£697
Tue 14/709:30
LHR
-
SAN
2 stops19h 28m
Air Canada
Tue 4/808:15
SAN
-
LHR
2 stops17h 45m
Air Canada
Deal found 31/5£697
Tue 30/615:05
LHR
-
SAN
1 stop13h 53m
Lufthansa
Tue 7/711:55
SAN
-
LHR
1 stop18h 15m
Lufthansa
Deal found 2/6£697
Sun 11/1008:30
LHR
-
SAN
2 stops22h 11m
Lufthansa
Sun 18/1017:15
SAN
-
LHR
1 stop17h 10m
Lufthansa
Deal found 30/5£699

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 2 June 2026.

Round-trip from

£692

One-way from

£423

Popular in

December

Cheapest in

January

Average price

£580

Good round-trip deal

£742 or less
American Airlines
  • American Airlines
  • 31/10-9/11
  • 1 total stop
  • 26h 32m total
  • London to San Diego
Search Deals
JetBlue
  • JetBlue
  • 8/7
  • 1 total stop
  • 28h 52m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip 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 2 June 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

LCY - SAN

LCYSAN

London City

Sun 27/9

20:45-18:36

2 stops29h 51m

San Diego

Sun 11/10

13:35-17:20

2 stops19h 45m

£709

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 10/11

09:20-20:49

2 stops19h 29m

San Diego

Thu 26/11

06:15-07:15

2 stops17h 00m

£716
Fastest return journey

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 22/9

08:55-17:47

1 stop16h 52m

San Diego

Fri 25/9

19:40-14:20

Nonstop10h 40m

£719

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 19/9

08:55-17:47

1 stop16h 52m

San Diego

Mon 28/9

19:40-14:20

Nonstop10h 40m

£719

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 19/6

07:30-19:51

2 stops20h 21m

San Diego

Thu 2/7

12:33-09:40

1 stop13h 07m

£790

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 13/7

09:20-22:01

2 stops20h 41m

San Diego

Mon 20/7

13:36-18:30

2 stops20h 54m

£793

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Wed 15/7

14:00-09:37

1 stop27h 37m

San Diego

Wed 22/7

21:06-10:00

1 stop28h 54m

£795

LondonSan Diego

LCY - SAN

LCYSAN

London City

Sat 7/11

08:40-20:18

2 stops19h 38m

San Diego

Sun 22/11

13:05-16:35

2 stops19h 30m

£812

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 13/10

15:40-22:58

2 stops39h 18m

San Diego

Tue 27/10

11:02-10:55

2 stops16h 53m

£817

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 21/9

10:20-21:16

2 stops18h 56m

San Diego

Mon 28/9

11:11-18:50

2 stops23h 39m

£823

Flights are sorted by cheapest return flights first.

Deals found on 31/5

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 £342). Flying from London to San Diego in July is currently the most expensive (average of £481). 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 2 June 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 2 June 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 59% 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 £453.

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 Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 30m.

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 Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 03m.

How often are flights from London to San Diego delayed?

About 17% of weekly flights between London and San Diego have experienced delays in the past year, with the average delay time being 150 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 17% 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 31 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 2 June 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
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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
9,779 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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.
American Airlines
7.1
Good
11,638 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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
8,036 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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
8,018 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.7

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 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 11 different airlines.

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

    Departing from London to San Diego will take you 16h 52m. 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 (£422), Lufthansa (£425), and Iberia (£431) offers the cheapest pricing from London to San Diego. JetBlue is 32% 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?

    £303 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 £309 and £388, 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 (82%), Alaska Airlines (82%) or British Airways (82%) 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 £635. While the most popular route (London Heathrow - San Diego) can be booked for £580 on average, our data indicates £882 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 £342). Flying from London to San Diego in July is currently the most expensive (average of £481). 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 2 June 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 2 June 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£422Average£687FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£425Average£566FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£431Average£584FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£438Average£590FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£453Average£780FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£463Average£645FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£476Average£605FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£485Average£626FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£485Average£731FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air FranceCheapest£552Average£552FlexibilityNo cancel feeOn-time77%
Search Air France 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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