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$441+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Jun 1 — Jun 81
Mon 6/1
Mon 6/8
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 May 2, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:45 am
LHR
-
SAN
1 stop15h 00m
Multiple Airlines
Thu 12/310:51 am
SAN
-
LHR
1 stop13h 04m
Multiple Airlines
Deal found 4/28$809
This TravelUp deal was found by Cheapflights users on 4/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:15 am
LHR
-
SAN
1 stop19h 46m
JetBlue
Sat 9/269:30 pm
SAN
-
LHR
1 stop15h 15m
JetBlue
Deal found 4/30$813
This Expedia deal was found by Cheapflights users on 4/29. 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 11/186:35 am
LHR
-
SAN
1 stop17h 10m
Multiple Airlines
Wed 12/28:35 am
SAN
-
LHR
2 stops24h 30m
Multiple Airlines
Deal found 4/29$822
This TravelUp deal was found by Cheapflights users on 5/2. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:15 am
LHR
-
SAN
1 stop19h 46m
JetBlue
Sat 9/269:30 pm
SAN
-
LHR
1 stop15h 15m
JetBlue
Deal found 5/2$823
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:30 am
LHR
-
SAN
2 stops20h 59m
Lufthansa
Thu 12/311:20 am
SAN
-
LHR
2 stops19h 25m
Lufthansa
Deal found 4/28$830
This Lufthansa deal was found by Cheapflights users on 4/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:25 am
LHR
-
SAN
1 stop16h 00m
Lufthansa
Mon 9/214:06 pm
SAN
-
LHR
1 stop14h 04m
Lufthansa
Deal found 4/30$833
This deal was found by Cheapflights users on 4/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:35 am
LHR
-
SAN
Nonstop11h 20m
British Airways
Thu 5/144:45 pm
SAN
-
LHR
Nonstop10h 45m
British Airways
Deal found 4/30$835
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 9/97:25 am
LHR
-
SAN
1 stop16h 00m
United Airlines
Thu 11/2610:00 am
SAN
-
LHR
1 stop13h 30m
United Airlines
Deal found 4/28$836
This TravelUp deal was found by Cheapflights users on 4/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:55 am
LHR
-
SAN
1 stop16h 30m
Lufthansa
Tue 11/39:30 am
SAN
-
LHR
1 stop13h 55m
Lufthansa
Deal found 4/29$838
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 9/27:25 am
LHR
-
SAN
2 stops19h 10m
United Airlines
Wed 9/166:20 am
SAN
-
LHR
2 stops15h 35m
United Airlines
Deal found 4/30$839
This TravelUp deal was found by Cheapflights users on 4/28. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:25 am
LHR
-
SAN
1 stop16h 00m
Lufthansa
Tue 10/272:09 pm
SAN
-
LHR
1 stop14h 51m
Lufthansa
Deal found 4/28$840
This Expedia deal was found by Cheapflights users on 4/28. 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 9/1611:35 am
LHR
-
SAN
Nonstop11h 20m
British Airways
Wed 9/234:28 pm
SAN
-
LHR
1 stop13h 57m
British Airways
Deal found 4/28$841

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 May 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$809
(Cheapflightsfares)

One-way from

$441

Popular in

December

Cheapest in

January

Average price

$747

Good round-trip deal

$1,272 or less

Good one-way deal

$664 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. 2% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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

 
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 May 2, 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 round-trip

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 9/8

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Wed 9/16

7:41 pm-9:20 pm

2 stops17h 39m

$833

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Wed 9/9

6:00 am-4:08 pm

2 stops18h 08m

San Diego

Tue 9/15

1:40 pm-8:25 am

1 stop34h 45m

$910

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 6/9

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Tue 6/16

6:35 am-7:15 am

2 stops16h 40m

$941

BirminghamSan Diego

BHX - SAN

BHXSAN

Birmingham

Thu 9/17

6:05 am-5:26 pm

2 stops19h 21m

San Diego

Thu 10/1

2:24 pm-5:15 pm

2 stops18h 51m

$942

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Tue 9/22

6:05 am-8:45 pm

3 stops22h 40m

San Diego

Thu 10/8

2:24 pm-5:20 pm

2 stops18h 56m

$947

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 6/3

7:25 am-6:39 pm

2 stops19h 14m

San Diego

Wed 6/10

9:45 pm-9:20 pm

2 stops15h 35m

$947

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 5/26

7:25 am-5:20 pm

2 stops17h 55m

San Diego

Tue 6/2

9:45 pm-9:25 pm

2 stops15h 40m

$950

EdinburghSan Diego

EDI - SAN

EDISAN

Edinburgh Turnhouse

Sat 9/12

7:10 pm-10:48 pm

2 stops35h 38m

San Diego

Sat 9/19

7:00 am-6:25 pm

2 stops27h 25m

$956

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Tue 6/16

11:35 am-2:10 pm

2 stops34h 35m

San Diego

Tue 6/23

3:30 pm-10:15 am

2 stops34h 45m

$979

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Tue 9/1

12:20 pm-11:34 pm

2 stops19h 14m

San Diego

Thu 9/17

4:45 pm-7:15 pm

1 stop18h 30m

$981

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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

Booking 11 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $460). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $2,794). 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 May 2, 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 May 2, 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 16% of weekly flights between United Kingdom and San Diego have experienced delays in the past year, with the average delay time being 151 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 Thursday 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 May 2, 2026.
Read reviews from past customers who have flown United Airlines,American Airlines, andBritish Airways 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.
United Airlines
7.4
Good
9,684 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,684 reviews
United Airlines
7.4
Good
9,684 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.1
Good
11,673 reviews
United Airlines
7.4
Good
9,684 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
British Airways
6.7
Okay
7,940 reviews
United Airlines
7.4
Good
9,684 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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?

    United Airlines, Lufthansa, and Scandinavian Airlines can get you from United Kingdom to San Diego in just under 16h. Your travel time can differ by up to 19h 38m. The distance between United Kingdom and San Diego is about 5469 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 ($432), JetBlue ($436), and Iberia ($492).

  • 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 Stansted - 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: Aer Lingus (80%), Finnair (80%), Iberia( 80%).

  • 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 $1,767, our data indicates the cheapest price to be $599. The most popular route (London Heathrow - San Diego), is priced around $716.

  • 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, February is the cheapest month in which you can book a flight from United Kingdom to San Diego (average of $460). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $2,794). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 3 airlines flying from United Kingdom to San Diego

Discover the top 3 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 May 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$605Average$939FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$640Average$918FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$697Average$1,019FlexibilityNo cancel feeOn-time71%

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