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$366+ Cheap flights from the United Kingdom to San Diego (SAN)

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Expedia deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:30 pmLHR - SAN
1 stop28h 23mBritish Airways
Wed 12/319:40 amSAN - LHR
1 stop13h 10mBritish Airways
Deal found 12/16$895
This United Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:05 amLHR - SAN
1 stop18h 43mUnited Airlines
Mon 1/55:40 pmSAN - LHR
1 stop29h 45mUnited Airlines
Deal found 12/18$909
This British Airways deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:00 pmGLA - SAN
2 stops30h 48mBritish Airways
Wed 1/76:00 pmSAN - GLA
1 stop13h 50mBritish Airways
Deal found 12/17$958
This ChecknFly deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/273:20 pmLHR - SAN
1 stop27h 10mLufthansa
Mon 12/297:00 amSAN - LHR
1 stop14h 55mLufthansa
Deal found 12/17$1,017
This The Travel House deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:05 amLHR - SAN
2 stops17h 52mLufthansa
Mon 1/55:40 pmSAN - LHR
2 stops35h 50mLufthansa
Deal found 12/18$1,030
This The Travel House deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:40 amBHX - SAN
2 stops40h 19mAer Lingus
Wed 1/216:20 amSAN - BHX
2 stops22h 30mAer Lingus
Deal found 12/15$1,095
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:05 amLHR - SAN
2 stops32h 25mUnited Airlines
Mon 12/298:00 amSAN - LHR
1 stop14h 40mUnited Airlines
Deal found 12/17$1,099
This British Airways deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:30 pmLHR - SAN
1 stop15h 29mBritish Airways
Mon 1/51:13 pmSAN - LHR
1 stop35h 02mBritish Airways
Deal found 12/17$1,154
This ChecknFly deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:10 amLHR - SAN
1 stop36h 35mLufthansa
Mon 1/510:30 pmSAN - LHR
1 stop23h 25mLufthansa
Deal found 12/16$1,169
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:50 pmLHR - SAN
Nonstop11h 20mMultiple Airlines
Mon 12/299:40 amSAN - LHR
1 stop13h 10mMultiple Airlines
Deal found 12/17$1,183
This Expedia deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:20 amLHR - SAN
1 stop32h 59mJetBlue
Wed 12/249:40 pmSAN - LHR
1 stop16h 00mJetBlue
Deal found 12/16$1,196
This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:50 pmLHR - SAN
Nonstop11h 20mBritish Airways
Mon 1/53:03 pmSAN - LHR
1 stop35h 22mBritish Airways
Deal found 12/16$1,204

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$648
(TravelUp)

One-way from

$366
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,050

Good round-trip deal

$897 or less

Good one-way deal

$580 or less
Provider with most accurate pricing for London (LON)-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-San Diego flights.
Search Deals
From United Kingdom to San Diego
Search Deals
One-way flight from United Kingdom to San Diego
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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

 
Customize 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 2,558,603 searches. Data last updated December 18, 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

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Mon 2/2

6:05 am-4:10 pm

1 stop18h 05m

San Diego

Mon 3/2

6:00 pm-7:40 pm

1 stop17h 40m

$648

Newcastle upon TyneSan Diego

NCL - SAN

NCLSAN

Newcastle upon Tyne

Mon 3/2

12:55 pm-4:10 pm

1 stop35h 15m

San Diego

Mon 3/9

7:00 pm-4:00 pm

1 stop14h 00m

$660

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 1/12

6:35 am-10:58 pm

2 stops24h 23m

San Diego

Wed 1/21

12:32 pm-2:15 pm

2 stops17h 43m

$661

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Wed 1/14

12:45 pm-8:32 am

2 stops27h 47m

San Diego

Sun 1/25

4:47 pm-2:30 pm

2 stops37h 43m

$661

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 1/12

2:00 pm-10:58 pm

2 stops40h 58m

San Diego

Wed 1/21

6:00 pm-4:25 pm

1 stop14h 25m

$672

Newcastle upon TyneSan Diego

NCL - SAN

NCLSAN

Newcastle upon Tyne

Mon 3/2

9:40 am-9:58 pm

2 stops20h 18m

San Diego

Mon 3/9

3:38 pm-2:55 pm

2 stops16h 17m

$676

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Mon 1/26

2:00 pm-3:57 pm

2 stops33h 57m

San Diego

Fri 2/6

4:47 pm-1:20 pm

2 stops36h 33m

$697

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Thu 3/12

3:20 pm-5:10 pm

1 stop32h 50m

San Diego

Mon 3/16

7:00 pm-6:15 pm

1 stop16h 15m

$706

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 2/3

1:00 pm-8:35 am

2 stops27h 35m

San Diego

Sun 2/8

9:59 pm-10:00 am

1 stop28h 01m

$726

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 3/3

1:25 pm-12:03 pm

2 stops30h 38m

San Diego

Mon 4/13

6:10 pm-6:30 am

2 stops28h 20m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 round-trip 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, December is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $454). Flying from United Kingdom to San Diego in August is currently the most expensive (average of $555). 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to San Diego in the afternoon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the evening.

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

About 16% of weekly flights between United Kingdom and San Diego have experienced delays in the past year, with the average delay time being 146 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 Friday 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 last year, British Airways have had the lowest number of delays on this route, with just 16% of flights being delayed.

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 December 18, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from the United Kingdom to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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
Iberia
7.0
Good
3,053 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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
British Airways
6.7
Okay
7,586 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

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?

    Located just 2.6 mi from the city center, San Diego (SAN) is the airport most travelers will use when flying to San Diego from United Kingdom.

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

    British Airways, Finnair, and Air Canada can get you from United Kingdom to San Diego in just under 18h 05m. Your travel time can differ by up to 17h 10m. The distance between United Kingdom and San Diego is about 5327 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from United Kingdom to San Diego are American Airlines ($490), British Airways ($511), and Finnair ($542).

  • 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?

    Before booking your flight to San Diego from United Kingdom, check out the most reliable airlines to get you to your destination on time: American Airlines (78%), Alaska Airlines (78%), British Airways( 78%).

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

    Looking for the cheapest flight from United Kingdom to San Diego? While on average our users pay $824, our data indicates the cheapest price to be $557. The most popular route (London Heathrow - San Diego), is priced around $535.

  • 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 vacation 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, December is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $454). Flying from United Kingdom to San Diego in August is currently the most expensive (average of $555). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
National City
La Mesa
Poway
Julian
Lemon Grove

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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 4 airlines flying from United Kingdom to San Diego

Discover the top 4 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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$533Average$715FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$589Average$902FlexibilityNo cancel feeOn-time70%
IberiaCheapest$599Average$817FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$664Average$850FlexibilityNo cancel feeOn-time71%

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