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Cheap flights from London to San Diego from £283

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
14 Dec — 21 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 14 November 2025.

Round-trip from

£508

One-way from

£283

Popular in

December

Cheapest in

February

Average price

£556

Good round-trip deal

£553 or less

Good one-way deal

£474 or less
British Airways
  • British Airways
  • 4/5-11/5
  • 1 total stop
  • 24h 31m total
  • London to San Diego
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10/2
  • 10/2
  • 3 total stops
  • 41h 46m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in November 2025
Search Deals
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 14 November 2025.

Wed 10/1208:55LHR - SAN
1 stop17h 23mVirgin Atlantic
Wed 17/1214:19SAN - LHR
1 stop13h 21mVirgin Atlantic
Deal found 12/11£527
Mon 15/1208:20LHR - SAN
1 stop15h 28mBritish Airways
Thu 22/118:00SAN - LHR
Nonstop10h 35mBritish Airways
Deal found 11/11£541
Wed 10/1206:30LHR - SAN
2 stops16h 53mMultiple Airlines
Wed 17/1214:19SAN - LHR
1 stop13h 21mMultiple Airlines
Deal found 12/11£548
Tue 25/1108:45LHR - SAN
1 stop15h 00mLufthansa
Tue 2/1217:35SAN - LHR
1 stop15h 30mLufthansa
Deal found 11/11£553
Sat 6/1214:00LGW - SAN
1 stop27h 48mMultiple Airlines
Thu 11/1222:13SAN - LGW
1 stop27h 47mMultiple Airlines
Deal found 13/11£554
Wed 31/1220:00LHR - SAN
1 stop35h 40mVirgin Atlantic
Wed 21/111:43SAN - LHR
1 stop13h 02mVirgin Atlantic
Deal found 11/11£555
Mon 15/1206:00LHR - SAN
2 stops22h 48mSWISS
Thu 22/107:00SAN - LHR
1 stop16h 55mSWISS
Deal found 11/11£556
Tue 25/1108:45LHR - SAN
1 stop15h 00mLufthansa
Thu 4/1217:35SAN - LHR
1 stop15h 30mLufthansa
Deal found 11/11£558
Tue 2/1220:05LHR - SAN
2 stops32h 43mMultiple Airlines
Mon 8/1207:00SAN - LHR
1 stop14h 55mMultiple Airlines
Deal found 11/11£562
Wed 3/1209:00LHR - SAN
2 stops34h 53mAir Canada
Sun 14/1212:40SAN - LHR
1 stop33h 50mAir Canada
Deal found 13/11£563
Tue 9/1210:05LHR - SAN
1 stop18h 11mBritish Airways
Tue 23/1212:39SAN - LHR
1 stop13h 21mBritish Airways
Deal found 11/11£565
Tue 16/1209:15LCY - SAN
2 stops21h 15mSWISS
Thu 22/110:52SAN - LCY
2 stops18h 03mSWISS
Deal found 11/11£570

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 14 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

LHR - SAN

LHRSAN

London Heathrow

Mon 13/4

09:30-21:11

2 stops19h 41m

San Diego

Wed 29/4

06:20-07:25

2 stops17h 05m

£534

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 14/1

09:50-23:42

3 stops21h 52m

San Diego

Thu 22/1

07:00-12:55

2 stops21h 55m

£540

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 21/1

09:50-00:15

2 stops22h 25m

San Diego

Wed 4/2

08:10-12:55

2 stops20h 45m

£541

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 20/2

07:40-15:45

1 stop16h 05m

San Diego

Tue 24/2

12:55-09:40

1 stop12h 45m

£546

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 1/2

07:40-15:45

1 stop16h 05m

San Diego

Wed 11/2

07:00-05:55

1 stop14h 55m

£546

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 3/2

11:45-22:33

2 stops18h 48m

San Diego

Thu 12/2

06:15-07:05

2 stops16h 50m

£549

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 4/5

09:15-18:37

2 stops17h 22m

San Diego

Mon 11/5

07:00-12:30

2 stops21h 30m

£552

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 7/2

13:30-00:15

2 stops18h 45m

San Diego

Thu 26/2

06:15-07:25

2 stops17h 10m

£552

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 2/2

09:15-22:33

2 stops21h 18m

San Diego

Wed 11/2

10:52-12:55

2 stops18h 03m

£559

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 16/4

07:25-15:25

1 stop16h 00m

San Diego

Thu 23/4

06:20-07:25

2 stops17h 05m

£559

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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 7 November 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 £346). Flying from London to San Diego in August is currently the most expensive (average of £422). 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 14 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 £409.

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 14 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
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Virgin Atlantic
7.5
Good
673 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,012 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,572 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,521 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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 16h 05m. 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 (£394), Virgin Atlantic (£408), and British Airways (£419) offers the cheapest pricing from London to San Diego. Air Canada is 33% 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?

    £350 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Virgin Atlantic and Lufthansa, 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 £398. While the most popular route (London Heathrow - San Diego) can be booked for £493 on average, our data indicates £2,029 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 £346). Flying from London to San Diego in August is currently the most expensive (average of £422). 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 14 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£394Average£500FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£408Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£419Average£575FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£419Average£504FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£424Average£434FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£428Average£561FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£428Average£570FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£434Average£569FlexibilityNo cancel feeOn-time75%
Search KLM flights
JetBlueCheapest£464Average£837FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£485Average£618FlexibilityNo 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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