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Cheap flights from London to San Diego from £433

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
9 Nov — 16 Nov1
1 adult
1 adult, Economy

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 Monday or Saturday 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 10 October 2025.

Round-trip from

£469

One-way from

£433

Popular in

July

Cheapest in

February

Average price

£577

Good round-trip deal

£516 or less

Good one-way deal

£473 or less
Air Canada
  • Air Canada
  • 17/11-1/12
  • 3 total stops
  • 62h 53m total
  • London to San Diego
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20/10
  • 20/10
  • 3 total stops
  • 58h 35m total
  • London to San Diego
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Highest demand for flights based on searches. 14% potential increase in price (£76 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in October 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 10 October 2025.

Mon 17/1120:05LHR - SAN
2 stops47h 48mMultiple Airlines
Mon 1/1212:45SAN - LHR
1 stop15h 05mMultiple Airlines
Deal found 10/10£469
Mon 10/1106:00LHR - SAN
2 stops20h 50mAustrian Airlines
Mon 24/1107:00SAN - LHR
1 stop14h 55mAustrian Airlines
Deal found 9/10£470
Mon 10/1106:00LHR - SAN
2 stops22h 48mMultiple Airlines
Mon 24/1107:00SAN - LHR
1 stop16h 55mMultiple Airlines
Deal found 10/10£474
Wed 12/1107:40LHR - SAN
1 stop16h 05mLufthansa
Tue 18/1114:16SAN - LHR
1 stop12h 59mLufthansa
Deal found 9/10£477
Tue 11/1108:45LHR - SAN
1 stop15h 00mLufthansa
Tue 18/1107:00SAN - LHR
1 stop14h 55mLufthansa
Deal found 9/10£478
Mon 10/1113:35LHR - SAN
1 stop37h 15mBrussels Airlines
Mon 24/1107:00SAN - LHR
1 stop14h 55mBrussels Airlines
Deal found 10/10£479
Wed 12/1108:45LHR - SAN
1 stop15h 00mLufthansa
Wed 3/1209:54SAN - LHR
1 stop13h 31mLufthansa
Deal found 9/10£480
Sat 6/1214:00LGW - SAN
1 stop27h 48mMultiple Airlines
Sun 14/1222:13SAN - LGW
1 stop27h 47mMultiple Airlines
Deal found 9/10£481
Mon 24/1116:40LHR - SAN
1 stop31h 05mMultiple Airlines
Mon 1/1212:45SAN - LHR
1 stop15h 05mMultiple Airlines
Deal found 10/10£483
Tue 11/1111:20LGW - SAN
2 stops30h 36mAmerican Airlines
Sun 23/1116:44SAN - LGW
2 stops54h 46mAmerican Airlines
Deal found 10/10£509
Mon 10/1109:15LCY - SAN
2 stops19h 33mSWISS
Mon 24/1110:51SAN - LCY
2 stops17h 59mSWISS
Deal found 10/10£511
Wed 12/1112:30LGW - SAN
2 stops29h 25mAmerican Airlines
Wed 3/1206:46SAN - LGW
2 stops18h 14mAmerican Airlines
Deal found 9/10£511

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 10 October 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

LHR - SAN

LHRSAN

London Heathrow

Mon 1/12

14:30-12:03

1 stop29h 33m

San Diego

Sun 7/12

12:45-07:10

2 stops34h 25m

£486

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 4/11

07:25-19:51

1 stop20h 26m

San Diego

Sat 8/11

20:39-06:55

1 stop26h 16m

£487

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 9/11

20:05-20:48

2 stops32h 43m

San Diego

Tue 5/5

07:00-13:00

2 stops22h 00m

£493

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 12/11

08:45-15:45

1 stop15h 00m

San Diego

Wed 3/12

07:00-05:55

1 stop14h 55m

£502

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 10/11

09:15-20:48

2 stops19h 33m

San Diego

Mon 24/11

10:51-12:50

2 stops17h 59m

£511

LondonSan Diego

LCY - SAN

LCYSAN

London City

Sun 9/11

19:20-20:48

2 stops33h 28m

San Diego

Tue 5/5

07:00-12:30

2 stops21h 30m

£511

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 12/11

09:00-22:20

2 stops21h 20m

San Diego

Sun 23/11

17:15-05:55

1 stop28h 40m

£512

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 11/11

09:00-20:48

2 stops19h 48m

San Diego

Thu 20/11

12:45-11:50

1 stop15h 05m

£512

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 12/11

09:25-20:48

2 stops19h 23m

San Diego

Wed 3/12

16:08-18:40

2 stops18h 32m

£516

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 26/11

09:25-22:20

2 stops20h 55m

San Diego

Tue 2/12

16:08-17:05

2 stops16h 57m

£516

Flights are sorted by cheapest return flights first.

Deals found on 10/10

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 3 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, April is the cheapest month in which you can book a flight from London to San Diego (average of £373). Flying from London to San Diego in July is currently the most expensive (average of £417). 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 10 October 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.

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 10 October 2025.

The most flights from LON to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, 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 33% 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 £405.

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 10 October 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
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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
1,332 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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
7.4
Good
665 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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
2,982 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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
7,467 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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
7,449 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

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 7 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 20h 26m. 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 France (£374), Air Canada (£390), and Virgin Atlantic (£403) offers the cheapest pricing from London to San Diego. Air France is 36% 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?

    £439 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on JetBlue and British Airways, with prices starting from £441 and £442, 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 (81%), Alaska Airlines (81%) or British Airways (81%) 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 £368. While the most popular route (London Heathrow - San Diego) can be booked for £461 on average, our data indicates £2,079 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, April is the cheapest month in which you can book a flight from London to San Diego (average of £373). Flying from London to San Diego in July is currently the most expensive (average of £417). 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 10 October 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 10 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£374Average£429FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£390Average£494FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£403Average£525FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£412Average£565FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£414Average£499FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£426Average£565FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£427Average£566FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£429Average£526FlexibilityNo cancel feeOn-time75%
Search KLM flights
JetBlueCheapest£458Average£827FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£482Average£615FlexibilityNo 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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