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Cheap flights from London to San Diego from £412

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to San Diego are usually found in February or March, booked 45 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 November 2025.

Round-trip from

£490

One-way from

£412

Popular in

July

Cheapest in

February

Average price

£552

Good round-trip deal

£559 or less

Good one-way deal

£478 or less
Austrian Airlines
  • Austrian Airlines
  • 2/12-10/12
  • 3 total stops
  • 53h 23m total
  • London to San Diego
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Finnair
  • Finnair
  • 26/4
  • Nonstop
  • 11h 20m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from London (LON) to San Diego.
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Price to beat on a one-way flight from London (LON) to San Diego.
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Find 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 November 2025.

Tue 2/1219:25LHR - SAN
2 stops33h 08mAustrian Airlines
Wed 10/1207:00SAN - LHR
1 stop20h 15mAustrian Airlines
Deal found 4/11£490
Wed 3/1211:55LHR - SAN
1 stop16h 21mBritish Airways
Tue 9/1218:00SAN - LHR
Nonstop10h 35mBritish Airways
Deal found 5/11£499
Tue 2/1218:40LHR - SAN
2 stops34h 08mMultiple Airlines
Mon 8/1207:42SAN - LHR
1 stop14h 58mMultiple Airlines
Deal found 4/11£502
Wed 3/1206:00LHR - SAN
2 stops22h 48mMultiple Airlines
Tue 9/1212:40SAN - LHR
1 stop33h 50mMultiple Airlines
Deal found 5/11£512
Thu 4/1214:00LGW - SAN
1 stop27h 48mMultiple Airlines
Thu 11/1210:45SAN - LGW
1 stop15h 15mMultiple Airlines
Deal found 5/11£515
Tue 9/1212:50LHR - SAN
Nonstop11h 20mBritish Airways
Tue 23/1210:42SAN - LHR
1 stop15h 18mBritish Airways
Deal found 5/11£515
Tue 2/1220:05LHR - SAN
2 stops34h 25mSWISS
Tue 9/1210:52SAN - LHR
2 stops18h 08mSWISS
Deal found 4/11£516
Wed 3/1209:30LHR - SAN
2 stops19h 15mUnited Airlines
Tue 9/1211:02SAN - LHR
2 stops14h 38mUnited Airlines
Deal found 5/11£518
Tue 2/1212:05LHR - SAN
1 stop17h 46mLufthansa
Mon 8/1211:11SAN - LHR
1 stop14h 29mLufthansa
Deal found 4/11£520
Wed 3/1206:30LHR - SAN
2 stops19h 58mUnited Airlines
Wed 10/1211:02SAN - LHR
1 stop18h 28mUnited Airlines
Deal found 3/11£521
Tue 2/1216:20LHR - SAN
1 stop36h 13mAustrian Airlines
Tue 9/1207:42SAN - LHR
1 stop19h 08mAustrian Airlines
Deal found 3/11£528
Thu 4/1206:35LHR - SAN
1 stop17h 10mLufthansa
Thu 11/1209:54SAN - LHR
1 stop13h 31mLufthansa
Deal found 4/11£529

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 November 2025.
Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

London

Fly to

San Diego

Route

Depart

Return

Price

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 4/12

14:00-09:48

1 stop27h 48m

San Diego

Thu 11/12

10:45-10:00

1 stop15h 15m

£515

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 11/2

09:30-20:49

2 stops19h 19m

San Diego

Wed 18/2

19:50-20:35

2 stops16h 45m

£523

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 18/2

07:30-17:40

2 stops18h 10m

San Diego

Wed 4/3

12:16-10:15

1 stop13h 59m

£526

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 11/2

09:50-23:42

3 stops21h 52m

San Diego

Wed 18/2

08:30-12:55

2 stops20h 25m

£542

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 20/2

11:20-14:09

2 stops34h 49m

San Diego

Tue 24/2

13:02-09:00

2 stops35h 58m

£545

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 2/2

09:50-00:15

2 stops22h 25m

San Diego

Wed 4/3

11:04-12:55

2 stops17h 51m

£545

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 26/11

06:35-15:45

1 stop17h 10m

San Diego

Thu 4/12

07:00-05:55

1 stop14h 55m

£569

LondonSan Diego

LCY - SAN

LCYSAN

London City

Thu 19/2

09:40-22:00

2 stops20h 20m

San Diego

Thu 5/3

11:04-12:55

2 stops17h 51m

£571

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 24/11

09:00-22:20

2 stops21h 20m

San Diego

Tue 9/12

10:52-13:00

2 stops18h 08m

£575

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 2/12

13:30-21:49

2 stops40h 19m

San Diego

Mon 8/12

10:47-14:35

2 stops19h 48m

£582

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 60 results
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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?

Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 31 October 2025.

The best time to book flights from London to San Diego is 45 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 £349). Flying from London to San Diego in July is currently the most expensive (average of £427). 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 November 2025.

A simple way to save on the total cost of your ticket is to fly from London to San Diego in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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 36% 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.

Washington, D.C. (IAD) is the most affordable one-stop option, with an average return flight price of £413.

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 01m.

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 November 2025.
Read through reviews of airlines operating flights from London to San Diego, such as Finnair, Virgin Atlantic, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.5
Good
672 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Iberia
7.0
Good
3,007 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Lufthansa
6.8
Okay
7,555 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,496 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 5 flights from London to San Diego per day from 12 different airlines.

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

    Departing from London to San Diego will take you 19h 19m. 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 (£398), Virgin Atlantic (£412), and British Airways (£423) offers the cheapest pricing from London to San Diego. Air Canada is 34% 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?

    £413 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Iberia and Delta, with prices starting from £415 and £416, 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 (68%), Alaska Airlines (68%) or British Airways (68%) 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 £402. While the most popular route (London Heathrow - San Diego) can be booked for £500 on average, our data indicates £2,048 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 £349). Flying from London to San Diego in July is currently the most expensive (average of £427). 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 November 2025.
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 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£398Average£505FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£412Average£533FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£423Average£581FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£423Average£509FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£428Average£438FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£432Average£566FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£433Average£575FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£438Average£575FlexibilityNo cancel feeOn-time75%
Search KLM flights
JetBlueCheapest£468Average£845FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£490Average£624FlexibilityNo cancel feeOn-time77%
Search Iberia 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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