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Cheap flights from the United Kingdom to San Diego from £348

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.
LHR — SAN
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to San Diego
Explore the most affordable flight options available from United Kingdom to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2026.

Thu 27/809:35
MAN
-
SAN
2 stops22h 19m
Scandinavian Airlines
Thu 3/908:00
SAN
-
MAN
2 stops26h 30m
Scandinavian Airlines
Deal found 30/7£578
Fri 4/909:35
MAN
-
SAN
2 stops21h 25m
Scandinavian Airlines
Wed 9/907:30
SAN
-
MAN
2 stops27h 00m
Scandinavian Airlines
Deal found 29/7£586
Tue 10/1107:40
LHR
-
SAN
1 stop16h 05m
Lufthansa
Tue 17/1114:30
SAN
-
LHR
1 stop15h 00m
Lufthansa
Deal found 31/7£593
Wed 9/906:55
LHR
-
SAN
1 stop16h 30m
Multiple Airlines
Wed 16/906:15
SAN
-
LHR
1 stop19h 55m
Multiple Airlines
Deal found 2/8£596
Thu 10/916:25
LHR
-
SAN
1 stop33h 22m
Finnair
Tue 15/913:10
SAN
-
LHR
1 stop13h 40m
Finnair
Deal found 28/7£597
Sat 7/1113:45
LHR
-
SAN
1 stop26h 51m
Lufthansa
Mon 7/1212:50
SAN
-
LHR
1 stop14h 00m
Lufthansa
Deal found 28/7£598
Wed 21/1007:05
LHR
-
SAN
2 stops24h 41m
Scandinavian Airlines
Thu 12/1115:00
SAN
-
LHR
2 stops22h 40m
Scandinavian Airlines
Deal found 29/7£599
Mon 14/920:25
LHR
-
SAN
1 stop27h 00m
Multiple Airlines
Sun 20/910:40
SAN
-
LHR
1 stop36h 05m
Multiple Airlines
Deal found 29/7£600
Tue 15/920:25
LHR
-
SAN
1 stop27h 00m
Multiple Airlines
Tue 29/908:00
SAN
-
LHR
1 stop18h 40m
Multiple Airlines
Deal found 31/7£601
Fri 18/919:10
MAN
-
SAN
2 stops33h 59m
Scandinavian Airlines
Fri 25/911:04
SAN
-
MAN
2 stops37h 51m
Scandinavian Airlines
Deal found 31/7£602
Wed 2/907:25
LHR
-
SAN
1 stop16h 00m
Lufthansa
Wed 30/912:37
SAN
-
LHR
1 stop13h 03m
Lufthansa
Deal found 30/7£603
Wed 7/1006:55
LHR
-
SAN
1 stop16h 30m
Lufthansa
Wed 21/1017:15
SAN
-
LHR
1 stop17h 10m
Lufthansa
Deal found 29/7£603

Find flight deals from United Kingdom to San Diego

Keep the following information in mind while searching for United Kingdom to San Diego flight deals. Data was last updated 2 August 2026.

Round-trip from

£573

One-way from

£348

Popular in

July

Cheapest in

January

Average price

£699

Good round-trip deal

£658 or less

Good one-way deal

£464 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 10/1-17/1
  • 4 total stops
  • 54h 16m total
  • United Kingdom to San Diego
Search Deals
20/10
  • 20/10
  • 2 total stops
  • 50h 50m total
  • United Kingdom to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£80 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 August 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to San Diego.
Search Deals
Price to beat on a one-way flight from United Kingdom to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 2 August 2026.
Use the filters below to find and compare flights from the United Kingdom to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Fri 4/9

09:35-23:00

2 stops21h 25m

San Diego

Wed 9/9

07:30-18:30

2 stops27h 00m

£586

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 2/11

07:40-15:45

1 stop16h 05m

San Diego

Thu 5/11

11:21-11:05

2 stops15h 44m

£611

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 14/9

07:25-20:02

2 stops20h 37m

San Diego

Sun 20/9

22:25-21:35

1 stop15h 10m

£613

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 31/10

06:40-22:43

2 stops23h 03m

San Diego

Sun 15/11

11:03-18:30

2 stops23h 27m

£615

EdinburghSan Diego

EDI - SAN

EDISAN

Edinburgh Turnhouse

Thu 24/9

19:10-22:54

2 stops35h 44m

San Diego

Mon 28/9

10:54-18:25

2 stops23h 31m

£615

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Thu 24/9

19:10-22:33

2 stops35h 23m

San Diego

Mon 28/9

10:54-18:30

2 stops23h 36m

£627

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 2/9

09:15-22:10

2 stops20h 55m

San Diego

Tue 29/9

06:40-08:40

2 stops18h 00m

£635

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 8/9

19:15-18:30

2 stops31h 15m

San Diego

Mon 21/9

06:18-12:35

2 stops22h 17m

£640

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 14/9

19:15-18:30

2 stops31h 15m

San Diego

Mon 21/9

06:18-12:35

2 stops22h 17m

£640
Fastest return journey

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 7/10

11:35-14:55

Nonstop11h 20m

San Diego

Wed 21/10

16:45-11:30

Nonstop10h 45m

£644

Flights are sorted by cheapest return flights first.

Deals found on 1/8

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

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

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

Currently, February is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £546). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £859). 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 GB to SAN?

Find hourly flight availability from United Kingdom 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 2 August 2026.

When flying from United Kingdom to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to San Diego

Explore weekly flight availability from United Kingdom 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 2 August 2026.

The most flights from GB0 to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from the United Kingdom to San Diego delayed?

About 17% of weekly flights between United Kingdom and San Diego have experienced delays in the past year, with the average delay time being 152 minutes.

What is the most punctual flight time for the United Kingdom to San Diego flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to San Diego flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.

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

The best time to book flights from United Kingdom to San Diego is 71 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.

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 2 August 2026.
Read through reviews of airlines operating flights from the United Kingdom to San Diego, such as Virgin Atlantic,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
694 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,061 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
American Airlines
7.1
Good
11,846 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,172 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,135 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from United Kingdom. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

  • How long is the flight from United Kingdom to San Diego?

    Scandinavian Airlines, United Airlines, and SWISS can get you from United Kingdom to San Diego in just under 16h 05m. Your travel time can differ by up to 5h 20m. There are 5469 mi between United Kingdom and San Diego. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to San Diego one-way?

    The cheapet airlines for a one-way flight from United Kingdom to San Diego are Lufthansa (£303), JetBlue (£308), and British Airways (£318).

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

    When deciding which route to take from United Kingdom 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 United Kingdom to San Diego?

    The top 3 most reliable airlines when flying from United Kingdom to San Diego are American Airlines (82%), Alaska Airlines (82%) and British Airways (82%).

  • What are the cheapest flights from United Kingdom to San Diego?

    On average you can expect to pay £1,198 for a flight from United Kingdom to San Diego. The cheapest flight overall is £390 while the most popular route, (London Heathrow - San Diego) is currently priced at £454.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to San Diego?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £546). Flying from United Kingdom to San Diego in July is currently the most expensive (average of £859). 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

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Alternative routes for United Kingdom to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to San Diego

Discover the top 10 airlines that operate flights from United Kingdom 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 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£241Average£770FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£421Average£716FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£425Average£680FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£430Average£583FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest£452Average£716FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£475Average£688FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£476Average£719FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£487Average£710FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£560Average£735FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£745Average£907FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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 United Kingdom to San Diego?

Deals for United Kingdom to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to San Diego with no change fees?

Certainly. Search results for flights to San Diego from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from United Kingdom to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from United Kingdom today and book when prices fit your budget.

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