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Cheap flights from London to San Diego from £417

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
17 Jun — 24 Jun1
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 18 May 2026.

Mon 7/907:25
LHR
-
SAN
1 stop16h 00m
Lufthansa
Mon 21/914:15
SAN
-
LHR
1 stop13h 40m
Lufthansa
Deal found 16/5£597
Tue 17/1106:35
LHR
-
SAN
2 stops19h 24m
Multiple Airlines
Tue 8/1207:05
SAN
-
LHR
1 stop20h 45m
Multiple Airlines
Deal found 18/5£600
Mon 7/906:55
LHR
-
SAN
1 stop16h 30m
Multiple Airlines
Thu 17/913:10
SAN
-
LHR
1 stop14h 40m
Multiple Airlines
Deal found 17/5£604
Sat 24/1011:35
LHR
-
SAN
Nonstop11h 20m
British Airways
Fri 30/1019:00
SAN
-
LHR
Nonstop10h 35m
British Airways
Deal found 17/5£606
Wed 7/1006:55
LHR
-
SAN
1 stop16h 30m
Lufthansa
Wed 21/1015:56
SAN
-
LHR
1 stop14h 14m
Lufthansa
Deal found 17/5£609
Mon 21/911:35
LHR
-
SAN
Nonstop11h 20m
British Airways
Wed 7/1019:40
SAN
-
LHR
Nonstop10h 40m
British Airways
Deal found 16/5£612
Wed 16/907:25
LHR
-
SAN
1 stop16h 00m
Lufthansa
Wed 30/912:37
SAN
-
LHR
2 stops18h 03m
Lufthansa
Deal found 13/5£615
Wed 2/906:55
LHR
-
SAN
1 stop16h 30m
United Airlines
Wed 16/922:45
SAN
-
LHR
1 stop14h 35m
United Airlines
Deal found 17/5£618
Wed 3/612:20
LGW
-
SAN
1 stop32h 11m
JetBlue
Fri 12/620:40
SAN
-
LGW
1 stop28h 55m
JetBlue
Deal found 17/5£643
Thu 4/612:20
LGW
-
SAN
1 stop29h 30m
JetBlue
Sat 6/621:10
SAN
-
LGW
1 stop28h 25m
JetBlue
Deal found 16/5£645
Tue 22/913:05
LGW
-
SAN
1 stop33h 20m
Multiple Airlines
Mon 28/914:17
SAN
-
LGW
1 stop32h 03m
Multiple Airlines
Deal found 17/5£655
Mon 26/1018:40
LGW
-
SAN
2 stops34h 17m
SWISS
Thu 5/1113:28
SAN
-
LGW
2 stops20h 22m
SWISS
Deal found 18/5£658

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 18 May 2026.

Round-trip from

£597

One-way from

£417

Popular in

December

Cheapest in

January

Average price

£599

Good round-trip deal

£751 or less

Good one-way deal

£606 or less
Lufthansa
  • Lufthansa
  • 7/9-21/9
  • 2 total stops
  • 29h 40m total
  • London to San Diego
Search Deals
British Airways
  • British Airways
  • 6/10
  • Nonstop
  • 11h 20m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£10 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 May 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 18 May 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

LHR - SAN

LHRSAN

London Heathrow

Wed 2/9

06:55-15:25

1 stop16h 30m

San Diego

Wed 16/9

22:45-21:20

1 stop14h 35m

£618

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 8/9

07:25-15:25

1 stop16h 00m

San Diego

Sun 20/9

21:05-20:40

1 stop15h 35m

£618

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 4/9

07:25-15:25

1 stop16h 00m

San Diego

Sun 20/9

15:56-14:10

1 stop14h 14m

£678

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 12/11

06:35-15:45

1 stop17h 10m

San Diego

Sat 5/12

12:30-13:30

2 stops17h 00m

£687

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 7/9

11:35-14:55

Nonstop11h 20m

San Diego

Fri 18/9

19:40-14:20

Nonstop10h 40m

£689

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 11/6

14:00-09:37

1 stop27h 37m

San Diego

Sat 27/6

21:06-10:00

1 stop28h 54m

£704

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 23/6

06:30-11:50

1 stop13h 20m

San Diego

Wed 8/7

11:48-12:10

2 stops16h 22m

£726

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 29/6

14:50-22:25

1 stop15h 35m

San Diego

Wed 8/7

06:40-05:55

1 stop15h 15m

£726

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 15/6

14:05-21:48

1 stop15h 43m

San Diego

Thu 16/7

12:57-10:40

1 stop13h 43m

£732

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 25/6

12:20-09:10

1 stop28h 50m

San Diego

Thu 9/7

10:20-09:35

1 stop15h 15m

£735

Flights are sorted by cheapest return flights first.

Deals found on 15/5

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

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.

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 £345). Flying from London to San Diego in July is currently the most expensive (average of £456). 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 18 May 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 18 May 2026.

The most flights from LON to SAN are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, 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.

Seattle (SEA) is the most affordable one-stop option, with an average return flight price of £480.

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 0h 59m.

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 149 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.

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 18 May 2026.
Read through reviews of airlines operating flights from London to San Diego, such as United Airlines,Virgin Atlantic, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
9,737 reviews
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Virgin Atlantic
7.4
Good
688 reviews
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
American Airlines
7.1
Good
11,648 reviews
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Lufthansa
6.8
Okay
8,009 reviews
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
British Airways
6.7
Okay
7,987 reviews
United Airlines
7.4
Good
9,737 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

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 11h 20m. 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 (£426), Lufthansa (£430), and United Airlines (£442) 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?

    £307 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 £312 and £392, 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 Aer Lingus (80%), Finnair (80%) or Iberia (80%) 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 £580. While the most popular route (London Heathrow - San Diego) can be booked for £611 on average, our data indicates £730 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 £345). Flying from London to San Diego in July is currently the most expensive (average of £456). 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 18 May 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 18 May 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£426Average£694FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£430Average£559FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£442Average£596FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£457Average£627FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£458Average£788FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£478Average£517FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£484Average£627FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£490Average£737FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£527Average£595FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air FranceCheapest£558Average£558FlexibilityNo 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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