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Cheap flights from London to San Diego from £244

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
5 Apr — 12 Apr1
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 53 days in advance, depart on a Monday or Wednesday 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 6 March 2026.

Tue 17/310:05
LHR
-
SAN
1 stop15h 28m
United Airlines
Sun 22/322:30
SAN
-
LHR
1 stop15h 50m
United Airlines
Deal found 1/3£457
Fri 13/308:05
LHR
-
SAN
1 stop18h 47m
JetBlue
Mon 23/321:05
SAN
-
LHR
1 stop17h 35m
JetBlue
Deal found 1/3£465
Thu 19/307:25
LHR
-
SAN
1 stop19h 27m
JetBlue
Tue 24/310:44
SAN
-
LHR
1 stop15h 46m
JetBlue
Deal found 1/3£467
Wed 18/311:35
LHR
-
SAN
1 stop16h 28m
United Airlines
Thu 26/313:53
SAN
-
LHR
1 stop13h 22m
United Airlines
Deal found 1/3£473
Sun 15/310:05
LHR
-
SAN
1 stop17h 48m
United Airlines
Wed 25/307:45
SAN
-
LHR
1 stop16h 40m
United Airlines
Deal found 1/3£474
Thu 19/315:20
LHR
-
SAN
1 stop15h 20m
United Airlines
Sun 22/322:30
SAN
-
LHR
1 stop15h 05m
United Airlines
Deal found 1/3£480
Tue 17/313:00
LHR
-
SAN
1 stop16h 59m
Delta
Sat 28/309:50
SAN
-
LHR
1 stop16h 10m
Delta
Deal found 1/3£486
Thu 19/310:00
LHR
-
SAN
1 stop17h 18m
United Airlines
Thu 26/313:53
SAN
-
LHR
1 stop13h 22m
United Airlines
Deal found 1/3£495
Sun 15/310:05
LHR
-
SAN
1 stop15h 28m
United Airlines
Sat 28/310:30
SAN
-
LHR
1 stop17h 05m
United Airlines
Deal found 1/3£496
Fri 13/308:05
LHR
-
SAN
1 stop18h 47m
JetBlue
Tue 24/320:59
SAN
-
LHR
1 stop26h 56m
JetBlue
Deal found 1/3£501
Tue 15/906:55
LHR
-
SAN
1 stop16h 30m
Multiple Airlines
Tue 29/906:20
SAN
-
LHR
1 stop19h 50m
Multiple Airlines
Deal found 3/3£504
Tue 14/407:25
LHR
-
SAN
1 stop16h 00m
Lufthansa
Thu 23/412:40
SAN
-
LHR
1 stop13h 00m
Lufthansa
Deal found 2/3£506

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 6 March 2026.

Round-trip from

£457

One-way from

£244

Popular in

December

Cheapest in

January

Average price

£600

Good round-trip deal

£666 or less

Good one-way deal

£377 or less
United Airlines
  • United Airlines
  • 17/3-22/3
  • 2 total stops
  • 31h 18m total
  • London to San Diego
Search Deals
4/6
  • 4/6
  • 2 total stops
  • 40h 22m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 6 March 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

Thu 23/4

06:55-15:25

1 stop16h 30m

San Diego

Thu 7/5

12:40-09:40

1 stop13h 00m

£559

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 13/4

09:15-22:59

2 stops21h 44m

San Diego

Wed 22/4

06:20-12:35

2 stops22h 15m

£611

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 19/4

20:05-22:59

2 stops34h 54m

San Diego

Mon 4/5

10:55-10:10

1 stop15h 15m

£616

LondonSan Diego

LCY - SAN

LCYSAN

London City

Thu 16/4

08:25-20:42

2 stops20h 17m

San Diego

Thu 23/4

13:40-17:20

1 stop19h 40m

£629

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 24/5

13:35-15:25

1 stop33h 50m

San Diego

Mon 1/6

09:26-07:25

1 stop13h 59m

£630

LondonSan Diego

LCY - SAN

LCYSAN

London City

Thu 23/4

09:20-23:06

2 stops21h 46m

San Diego

Thu 7/5

13:40-18:30

1 stop20h 50m

£654

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 2/6

09:15-18:35

1 stop17h 20m

San Diego

Thu 4/6

15:10-10:55

1 stop35h 45m

£667

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 21/6

09:30-20:39

1 stop19h 09m

San Diego

Sun 5/7

22:40-21:35

1 stop14h 55m

£674

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 23/4

13:05-12:48

1 stop31h 43m

San Diego

Thu 7/5

21:25-06:20

1 stop24h 55m

£683

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 14/4

13:05-12:52

1 stop31h 47m

San Diego

Tue 21/4

07:00-06:20

1 stop15h 20m

£684

Flights are sorted by cheapest return flights first.

Deals found on 3/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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?

Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 27 February 2026.

The best time to book flights from London to San Diego is 53 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, December is the cheapest month in which you can book a flight from London to San Diego (average of £333). Flying from London to San Diego in July is currently the most expensive (average of £416). 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 6 March 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.

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 44% 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.

Montreal (YUL) is the most affordable one-stop option, with an average return flight price of £426.

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 00m.

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 156 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 Friday 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.

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 6 March 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
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
680 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,397 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
American Airlines
7.1
Good
11,388 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,828 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,779 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 2 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 30m. 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, Air Canada (£389), Lufthansa (£422), and United Airlines (£425) offers the cheapest pricing from London to San Diego. Air Canada 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?

    £311 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Iberia and British Airways, with prices starting from £385 and £400, 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 (70%), Alaska Airlines (70%) or Aer Lingus (70%) 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 £377. While the most popular route (London Heathrow - San Diego) can be booked for £504 on average, our data indicates £2,129 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, December is the cheapest month in which you can book a flight from London to San Diego (average of £333). Flying from London to San Diego in July is currently the most expensive (average of £416). 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 6 March 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 6 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£389Average£517FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£422Average£501FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£425Average£579FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest£426Average£803FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
KLMCheapest£457Average£755FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£457Average£609FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£477Average£629FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£477Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£479Average£638FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£490Average£702FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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