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Cheap flights from the United Kingdom to San Diego from £319

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
18 Jun — 25 Jun1
1 adult

Cheap 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 13 June 2025.

Round-trip from

£458

One-way from

£319

Popular in

July

Cheapest in

March

Average price

£550

Good round-trip deal

£452 or less

Good one-way deal

£495 or less
British Airways
  • British Airways
  • 11/9-25/9
  • 1 total stop
  • 25h 18m total
  • United Kingdom to San Diego
10/10
  • 10/10
  • 2 total stops
  • 34h 27m total
  • United Kingdom to San Diego
Highest demand for flights based on searches. 17% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from United Kingdom to San Diego.
Price to beat on a one-way flight from United Kingdom to San Diego.

Find flight deals from United Kingdom to San Diego

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 13 June 2025.

Sat 20/907:25LHR - SAN
1 stop16h 00mMultiple Airlines
Sat 4/1008:10SAN - LHR
1 stop17h 25mMultiple Airlines
Deal found 12/6£458
Wed 24/910:55LHR - SAN
1 stop17h 54mVirgin Atlantic
Wed 1/1011:00SAN - LHR
2 stops16h 25mVirgin Atlantic
Deal found 12/6£459
Tue 26/806:30LHR - SAN
1 stop13h 30mKLM
Tue 9/913:22SAN - LHR
1 stop15h 48mKLM
Deal found 11/6£460
Wed 3/915:10LHR - SAN
1 stop15h 26mAmerican Airlines
Tue 9/916:40SAN - LHR
1 stop12h 10mAmerican Airlines
Deal found 11/6£461
Wed 24/906:55LHR - SAN
1 stop16h 30mLufthansa
Wed 1/1012:52SAN - LHR
1 stop12h 48mLufthansa
Deal found 11/6£461
Tue 23/911:30LHR - SAN
Nonstop11h 20mBritish Airways
Tue 30/911:30SAN - LHR
1 stop13h 30mBritish Airways
Deal found 11/6£464
Wed 24/906:30LHR - SAN
2 stops16h 50mDelta
Wed 1/1007:00SAN - LHR
1 stop15h 25mDelta
Deal found 11/6£464
Thu 30/1008:45LHR - SAN
1 stop15h 00mUnited Airlines
Tue 4/1106:45SAN - LHR
2 stops17h 40mUnited Airlines
Deal found 11/6£476
Wed 27/809:20LCY - SAN
2 stops16h 57mVirgin Atlantic
Tue 9/913:22SAN - LCY
2 stops19h 18mVirgin Atlantic
Deal found 11/6£478
Thu 19/610:45LGW - SAN
2 stops28h 28mMultiple Airlines
Wed 9/706:15SAN - LGW
2 stops20h 40mMultiple Airlines
Deal found 10/6£480
Tue 2/909:25LCY - SAN
2 stops19h 23mSWISS
Tue 9/916:11SAN - LCY
2 stops18h 34mSWISS
Deal found 11/6£483
Tue 26/809:30LHR - SAN
1 stop18h 08mAir Canada
Thu 11/910:38SAN - LHR
2 stops35h 52mAir Canada
Deal found 11/6£486

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 13 June 2025.
Use the filters below to find and compare flights from the United Kingdom to San Diego that are best for you.

Fly from

United Kingdom

Fly to

San Diego

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 20/9

07:25-15:25

1 stop16h 00m

San Diego

Sat 4/10

08:10-09:35

1 stop17h 25m

£458

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 24/9

10:55-20:49

1 stop17h 54m

San Diego

Wed 1/10

11:00-11:25

2 stops16h 25m

£459

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 26/8

06:30-12:00

1 stop13h 30m

San Diego

Tue 9/9

13:22-13:10

1 stop15h 48m

£460

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 3/9

15:10-22:36

1 stop15h 26m

San Diego

Tue 9/9

16:40-12:50

1 stop12h 10m

£461

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 24/9

06:55-15:25

1 stop16h 30m

San Diego

Wed 1/10

12:52-09:40

1 stop12h 48m

£461

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 23/9

11:30-14:50

Nonstop11h 20m

San Diego

Tue 30/9

11:30-09:00

1 stop13h 30m

£464

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 24/9

06:30-15:20

2 stops16h 50m

San Diego

Wed 1/10

07:00-06:25

1 stop15h 25m

£464

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 30/10

08:45-16:45

1 stop15h 00m

San Diego

Tue 4/11

06:45-08:25

2 stops17h 40m

£476

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 27/8

09:20-18:17

2 stops16h 57m

San Diego

Tue 9/9

13:22-16:40

2 stops19h 18m

£478

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 5/9

10:55-08:14

2 stops29h 19m

San Diego

Sat 20/9

15:10-10:55

2 stops35h 45m

£481

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £585). Flying from United Kingdom 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 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 13 June 2025.

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 13 June 2025.

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

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 13 June 2025.
Read through reviews of airlines operating flights from United Kingdom to San Diego, such as Delta, KLM and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 Aer Lingus (£431), WestJet (£440), and British Airways (£454).

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

  • 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 Iberia (91%), American Airlines (85%) and Alaska Airlines (85%).

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

    On average you can expect to pay £1,762 for a flight from United Kingdom to San Diego. The cheapest flight overall is £407 while the most popular route, (London Heathrow - San Diego) is currently priced at £433.

  • 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, January is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of £585). Flying from United Kingdom 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 the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Coronado
El Cajon

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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.

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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£367Average£511FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£382Average£509FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£393Average£615FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£395Average£691FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£404Average£603FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£408Average£603FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£419Average£593FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£420Average£575FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£434Average£615FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£470Average£601FlexibilityNo 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 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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