Find flights
Deals
When to book
Airlines
FAQs

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAN
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London to San Diego are usually found in February or March, booked 42 days in advance, depart on a Saturday or Friday 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 12 September 2025.

Round-trip from

£467

One-way from

£417

Popular in

July

Cheapest in

February

Average price

£506

Good round-trip deal

£554 or less

Good one-way deal

£674 or less
27/9-1/10
  • 27/9-1/10
  • 4 total stops
  • 35h 47m total
  • London to San Diego
Search Deals
17/10
  • 17/10
  • 3 total stops
  • 39h 35m total
  • London to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£76 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 September 2025
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

Find flight deals from London to San Diego

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 12 September 2025.

Thu 18/909:30LHR - SAN
2 stops22h 45mAir Canada
Mon 29/906:53SAN - LHR
2 stops15h 42mAir Canada
Deal found 11/9£467
Thu 9/1010:25LGW - SAN
2 stops17h 35mAmerican Airlines
Thu 16/1006:15SAN - LGW
2 stops19h 05mAmerican Airlines
Deal found 11/9£468
Sun 23/1113:25LHR - SAN
2 stops18h 48mAir Canada
Wed 3/1212:25SAN - LHR
1 stop14h 55mAir Canada
Deal found 10/9£468
Thu 2/1008:30LHR - SAN
2 stops19h 05mAir Canada
Sun 5/1008:10SAN - LHR
2 stops19h 40mAir Canada
Deal found 11/9£469
Thu 18/914:50LHR - SAN
1 stop15h 24mUnited Airlines
Fri 26/911:08SAN - LHR
1 stop16h 02mUnited Airlines
Deal found 11/9£470
Mon 3/1106:20LHR - SAN
2 stops17h 59mDelta
Mon 17/1119:59SAN - LHR
1 stop12h 51mDelta
Deal found 11/9£470
Sat 22/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Tue 2/1218:00SAN - LHR
Nonstop10h 35mBritish Airways
Deal found 10/9£471
Sat 4/1008:30LHR - SAN
2 stops19h 05mMultiple Airlines
Wed 8/1011:08SAN - LHR
2 stops16h 42mMultiple Airlines
Deal found 11/9£472
Wed 19/1109:20LHR - SAN
2 stops31h 45mIcelandair
Sat 22/1121:15SAN - LHR
2 stops25h 40mIcelandair
Deal found 11/9£472
Thu 11/1207:40LHR - SAN
1 stop16h 05mMultiple Airlines
Thu 8/108:10SAN - LHR
1 stop14h 30mMultiple Airlines
Deal found 11/9£473
Tue 4/1113:00LGW - SAN
1 stop31h 45mMultiple Airlines
Sun 9/1121:59SAN - LGW
1 stop24h 01mMultiple Airlines
Deal found 12/9£474
Thu 11/1207:40LHR - SAN
1 stop16h 05mLufthansa
Thu 8/111:10SAN - LHR
1 stop14h 30mLufthansa
Deal found 10/9£474

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 12 September 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

Wed 12/11

06:30-23:44

2 stops25h 14m

San Diego

Fri 21/11

06:15-08:30

2 stops18h 15m

£472

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 11/12

07:40-15:45

1 stop16h 05m

San Diego

Fri 9/1

08:10-06:40

1 stop14h 30m

£473

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 11/12

07:40-15:45

1 stop16h 05m

San Diego

Thu 8/1

13:00-09:40

1 stop12h 40m

£473

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 11/12

07:40-15:45

1 stop16h 05m

San Diego

Sat 10/1

11:10-09:40

1 stop14h 30m

£473

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 4/11

13:00-12:45

1 stop31h 45m

San Diego

Sun 9/11

21:59-06:00

1 stop24h 01m

£474

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 3/11

09:15-20:48

2 stops19h 33m

San Diego

Mon 17/11

16:01-17:05

2 stops17h 04m

£486

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 10/11

09:15-20:48

2 stops19h 33m

San Diego

Mon 17/11

16:01-17:05

2 stops17h 04m

£486

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 9/12

06:35-15:45

1 stop17h 10m

San Diego

Wed 7/1

07:00-05:55

1 stop14h 55m

£492

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 10/12

06:35-15:45

1 stop17h 10m

San Diego

Tue 6/1

13:00-12:00

1 stop15h 00m

£492

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 9/11

08:40-20:37

2 stops19h 57m

San Diego

Thu 20/11

07:00-06:20

1 stop15h 20m

£497

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 60 results
1
2
3
...
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 29 August 2025.

The best time to book flights from London to San Diego is 42 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, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). 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 12 September 2025.

A simple way to save on the total cost of your ticket is to fly from London to San Diego in the morning. If you’re flexible enough to do this you can expect to save up to 12% 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 12 September 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 30% 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 £398.

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 12 September 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
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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
1,323 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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
7.4
Good
664 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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
2,929 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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
7,409 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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
7,361 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Crew

8.1

Comfort

7.5

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 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 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 France (£368), Air Canada (£383), and Virgin Atlantic (£397) offers the cheapest pricing from London to San Diego. Air France 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?

    £430 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on British Airways and Scandinavian Airlines, with prices starting from £430 and £435, 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 (73%), Alaska Airlines (73%) or British Airways (73%) 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 £467. While the most popular route (London Heathrow - San Diego) can be booked for £392 on average, our data indicates £2,060 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, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 12 September 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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£368Average£422FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£383Average£486FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£397Average£513FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£398Average£677FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£406Average£490FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£411Average£559FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£413Average£616FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£416Average£551FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£422Average£519FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£476Average£605FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.