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Cheap flights from San Diego to London from £246

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
10 Aug — 17 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Diego to London are usually found in February or January, booked 51 days in advance, depart on a Sunday or Monday and return on a Monday

Cheap flight deals from San Diego to London

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to London
Explore the most affordable flight options available from San Diego to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2026.

Thu 3/1207:05
SAN
-
LHR
1 stop20h 45m
Lufthansa
Sun 13/1219:15
LHR
-
SAN
1 stop28h 30m
Lufthansa
Deal found 8/7£718
Thu 8/1013:40
SAN
-
LCY
1 stop19h 00m
Virgin Atlantic
Mon 19/1020:15
LCY
-
SAN
1 stop23h 35m
Virgin Atlantic
Deal found 9/7£718
Sat 8/812:30
SAN
-
LHR
1 stop36h 05m
Air Canada
Thu 27/814:05
LHR
-
SAN
2 stops32h 57m
Air Canada
Deal found 8/7£718
Sun 9/816:29
SAN
-
LHR
1 stop13h 56m
American Airlines
Tue 25/811:35
LHR
-
SAN
Nonstop11h 20m
American Airlines
Deal found 9/7£719
Tue 22/913:40
SAN
-
LCY
1 stop20h 50m
Virgin Atlantic
Wed 30/919:00
LCY
-
SAN
1 stop24h 50m
Virgin Atlantic
Deal found 8/7£719
Tue 18/813:24
SAN
-
LGW
2 stops20h 26m
SWISS
Wed 30/909:25
LGW
-
SAN
2 stops21h 16m
SWISS
Deal found 9/7£719
Mon 10/816:45
SAN
-
LHR
Nonstop10h 45m
British Airways
Wed 26/811:35
LHR
-
SAN
Nonstop11h 20m
British Airways
Deal found 8/7£720
Tue 8/913:40
SAN
-
LCY
1 stop22h 05m
Virgin Atlantic
Wed 21/1019:00
LCY
-
SAN
1 stop24h 50m
Virgin Atlantic
Deal found 11/7£720
Wed 9/907:00
SAN
-
STN
2 stops21h 00m
Multiple Airlines
Wed 23/922:45
STN
-
SAN
3 stops47h 25m
Multiple Airlines
Deal found 10/7£720
Wed 29/721:06
SAN
-
LGW
1 stop28h 54m
Multiple Airlines
Mon 17/814:00
LGW
-
SAN
1 stop27h 37m
Multiple Airlines
Deal found 8/7£720
Sun 9/819:40
SAN
-
LHR
Nonstop10h 40m
Finnair
Tue 25/814:30
LHR
-
SAN
Nonstop11h 20m
Finnair
Deal found 11/7£721
Tue 6/1017:15
SAN
-
STN
2 stops21h 05m
Multiple Airlines
Thu 8/1022:00
STN
-
SAN
2 stops26h 12m
Multiple Airlines
Deal found 7/7£721

Find flight deals from San Diego to London

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to London (LON). 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 11 July 2026.

Round-trip from

£718

One-way from

£246

Popular in

June

Cheapest in

February

Average price

£885

Good round-trip deal

£797 or less

Good one-way deal

£589 or less
Lufthansa
  • Lufthansa
  • 3/12-13/12
  • 2 total stops
  • 49h 15m total
  • San Diego to London
Search Deals
Air Canada
  • Air Canada
  • 11/10
  • 2 total stops
  • 34h 55m total
  • San Diego to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£178 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from San Diego to London (LON).
Search Deals
Price to beat on a one-way flight from San Diego to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Diego to London 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 11 July 2026.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 28/9

09:51-09:05

1 stop15h 14m

London Heathrow

Wed 14/10

14:30-17:50

Nonstop11h 20m

£723
Fastest return journey

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 18/8

10:59-09:00

1 stop14h 01m

London Heathrow

Tue 8/9

11:35-14:55

Nonstop11h 20m

£723

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Wed 16/9

15:20-16:40

2 stops17h 20m

London City

Mon 21/9

17:50-11:50

1 stop26h 00m

£723

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 20/9

09:20-07:50

1 stop14h 30m

London Heathrow

Thu 1/10

14:30-17:50

Nonstop11h 20m

£724

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Wed 16/9

17:01-16:40

2 stops15h 39m

London City

Tue 22/9

10:00-20:37

2 stops18h 37m

£730

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 18/8

06:15-07:15

2 stops17h 00m

London City

Wed 30/9

09:20-20:37

2 stops19h 17m

£730

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Thu 1/10

13:00-18:50

2 stops21h 50m

London Gatwick

Fri 9/10

10:20-23:59

2 stops21h 39m

£730

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Sun 27/9

13:43-16:40

2 stops18h 57m

London City

Thu 8/10

10:00-22:14

2 stops20h 14m

£730

San DiegoLondon

SAN - SEN

SANSEN

San Diego

Sun 20/9

07:00-12:05

2 stops21h 05m

London Southend

Mon 28/9

06:30-20:36

2 stops22h 06m

£730

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Sun 9/8

13:34-18:30

2 stops20h 56m

London City

Tue 25/8

10:00-23:43

2 stops21h 43m

£730

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from San Diego to London

Have a flexible travel schedule? Discover the best time to fly to London from San Diego 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 San Diego to London

What is the cheapest month to book a flight from San Diego to London?

Currently, May is the cheapest month in which you can book a flight from San Diego to London (average of £76). Flying from San Diego to London in June is currently the most expensive (average of £544). 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 SAN to LON?

Find hourly flight availability from San Diego to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to London as you normally would.

Weekly flight availability from San Diego to London

Explore weekly flight availability from San Diego to London. 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 11 July 2026.

The most flights from SAN to LON are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost for a return flight from San Diego to London?

How far ahead should I book a flight from San Diego to London?

The price you pay for your flight from San Diego to London may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 July 2026.
Get a feel of what it's like to fly with British Airways from San Diego to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,106 reviews
Check prices

Boarding

6.9

Food

6.4

Crew

7.7

Comfort

6.8

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
8,106 reviews
British Airways
6.7
Okay
8,106 reviews
Check prices

Boarding

6.9

Food

6.4

Crew

7.7

Comfort

6.8

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from San Diego to London. 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 from for flights from San Diego to London?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly out of when you book flights from San Diego to London. 1 airline have flights from San Diego to London on a regular basis. Booking flights from San Diego to London should not be difficult; the airport handles an average of 9 outbound flights to London per day.

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

    Finnair, British Airways, and Virgin Atlantic can get you from San Diego to London in just under 14h 01m. Your travel time can differ by up to 3h 19m. There are 5469 mi between San Diego and London. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from San Diego to London round-trip?

    According to our current data, British Airways (£509), offers the cheapest pricing from San Diego to London. British Airways is currently priced 24% below the average price you’ll pay for this route.

  • What are the most popular routes from San Diego to London?

    When deciding which route to take from San Diego to London consider San Diego - London Heathrow, San Diego - London Gatwick or San Diego - London Stansted as they are the most popular.

  • What are the most reliable airlines from San Diego to London?

    The top 3 most reliable airlines when flying from San Diego to London are American Airlines (85%), Alaska Airlines (85%) and British Airways (85%).

  • What are the cheapest flights from San Diego to London?

    On average you can expect to pay £814 for a flight from San Diego to London. The cheapest flight overall is £280 while the most popular route, (San Diego - London Heathrow) is currently priced at £597.

  • Can I find deals for flights from San Diego to London that include hotel bookings?

    Yes. In addition to deals on San Diego to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to London.

  • Can I find deals for business class flights from San Diego to London?

    Yes. Cheapflights offers flight deals from San Diego to London 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 San Diego to London?

    Currently, May is the cheapest month in which you can book a flight from San Diego to London (average of £76). Flying from San Diego to London in June is currently the most expensive (average of £544). 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 London?

Book flights to London if you plan to visit one of these locations
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Top airline flying from San Diego to London

Discover the top airline that operate flights from San Diego to London. 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 11 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£509Average£864FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Diego to London?

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Why should you use Cheapflights to find cheap flight tickets from San Diego to London?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Yes, we can. To see specific flights from San Diego to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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