San Diego

$340+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Mar 6 — Mar 131
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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 February 4, 2026.

This The Travel House deal was found by Cheapflights users on 2/2. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/239:20 am
LHR
-
SAN
1 stop33h 12m
JetBlue
Wed 3/43:35 pm
SAN
-
LHR
1 stop31h 20m
JetBlue
Deal found 2/2$591
This lastminute.com deal was found by Cheapflights users on 2/1. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/239:20 am
LHR
-
SAN
1 stop18h 04m
JetBlue
Mon 3/912:49 pm
SAN
-
LHR
1 stop13h 41m
JetBlue
Deal found 2/1$592
This TravelUp deal was found by Cheapflights users on 2/4. 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 2/288:05 am
LHR
-
SAN
1 stop19h 55m
JetBlue
Sun 3/89:10 pm
SAN
-
LHR
1 stop16h 35m
JetBlue
Deal found 2/4$593
This deal was found by Cheapflights users on 2/3. 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 3/612:50 pm
LHR
-
SAN
Nonstop11h 20m
British Airways
Tue 3/177:00 pm
SAN
-
LHR
Nonstop10h 35m
British Airways
Deal found 2/3$594
This deal was found by Cheapflights users on 2/3. 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.
Mon 3/212:00 pm
LHR
-
SAN
1 stop17h 25m
United Airlines
Thu 3/191:53 pm
SAN
-
LHR
1 stop13h 22m
United Airlines
Deal found 2/3$601
This deal was found by Cheapflights users on 2/3. 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 3/611:35 am
LHR
-
SAN
1 stop13h 51m
United Airlines
Thu 3/199:54 am
SAN
-
LHR
1 stop14h 31m
United Airlines
Deal found 2/3$602
This deal was found by Cheapflights users on 2/3. 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.
Thu 3/51:35 pm
LHR
-
SAN
1 stop17h 05m
United Airlines
Sat 3/147:05 am
SAN
-
LHR
1 stop16h 15m
United Airlines
Deal found 2/3$603
This JetBlue deal was found by Cheapflights users on 2/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:20 am
LHR
-
SAN
1 stop18h 04m
JetBlue
Mon 2/239:10 pm
SAN
-
LHR
1 stop16h 30m
JetBlue
Deal found 2/4$609
This Expedia deal was found by Cheapflights users on 2/3. 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.
Tue 3/37:25 am
LHR
-
SAN
1 stop20h 03m
JetBlue
Fri 3/69:10 pm
SAN
-
LHR
1 stop16h 50m
JetBlue
Deal found 2/3$618
This deal was found by Cheapflights users on 2/3. 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.
Wed 3/412:50 pm
LHR
-
SAN
Nonstop11h 20m
British Airways
Sat 3/147:00 pm
SAN
-
LHR
Nonstop10h 35m
British Airways
Deal found 2/3$622
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/157:55 am
LGW
-
SAN
2 stops34h 52m
Multiple Airlines
Tue 3/2410:02 pm
SAN
-
LGW
1 stop28h 58m
Multiple Airlines
Deal found 2/3$695
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:00 pm
LGW
-
SAN
1 stop34h 38m
Multiple Airlines
Tue 3/2410:02 pm
SAN
-
LGW
1 stop28h 58m
Multiple Airlines
Deal found 2/3$721

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$591
(The Travel House)

One-way from

$340
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$653

Good round-trip deal

$650 or less

Good one-way deal

$586 or less
Provider with most accurate pricing for London (LON)-San Diego flight deals.
Provider most trusted by Cheapflights users for London (LON)-San Diego flights.
From United Kingdom to San Diego
One-way flight from United Kingdom to San Diego
Highest demand for flights based on searches. 4% potential increase in price ($40 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in February 2026
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.

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 February 4, 2026.
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

Thu 2/19

9:20 am-7:24 pm

1 stop18h 04m

San Diego

Fri 2/27

9:10 pm-10:00 pm

1 stop16h 50m

$609

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 2/17

7:25 am-8:00 pm

1 stop20h 35m

San Diego

Tue 3/10

12:49 pm-9:30 am

1 stop13h 41m

$633

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 2/17

7:25 am-8:00 pm

1 stop20h 35m

San Diego

Sun 3/8

9:10 pm-8:45 pm

1 stop16h 35m

$633

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 3/13

8:05 am-7:52 pm

1 stop18h 47m

San Diego

Wed 3/18

9:05 pm-9:40 pm

1 stop17h 35m

$634

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 3/4

6:35 am-3:45 pm

1 stop17h 10m

San Diego

Wed 3/11

6:15 am-7:55 am

2 stops18h 40m

$704

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 3/2

9:30 am-8:49 pm

2 stops19h 19m

San Diego

Mon 3/9

11:03 am-9:40 am

2 stops15h 37m

$711

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 3/19

6:35 am-4:45 pm

1 stop17h 10m

San Diego

Thu 3/26

6:15 am-7:25 am

2 stops18h 10m

$745

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 3/13

6:35 am-4:45 pm

1 stop17h 10m

San Diego

Tue 3/24

12:16 pm-10:15 am

1 stop14h 59m

$745

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 3/2

2:00 pm-10:30 am

1 stop28h 30m

San Diego

Mon 3/9

7:35 am-6:00 am

1 stop15h 25m

$751

Newcastle upon TyneSan Diego

NCL - SAN

NCLSAN

Newcastle upon Tyne

Mon 3/2

5:35 pm-12:05 pm

1 stop26h 30m

San Diego

Mon 3/9

9:50 am-10:20 am

2 stops17h 30m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

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 $444). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $554). 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 February 4, 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.

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 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 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 February 4, 2026.
Read reviews from past customers who have flown United Airlines, American Airlines, and Iberia 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.

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

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

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

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

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

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

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

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

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

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?

    JetBlue, United Airlines, and Lufthansa can get you from United Kingdom to San Diego in just under 17h 10m. Your travel time can differ by up to 2h 49m. 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), Finnair ($506), and Lufthansa ($518).

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

  • 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 (71%), Alaska Airlines (71%), Aer Lingus( 71%).

  • 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 $717, our data indicates the cheapest price to be $506. The most popular route (London Heathrow - San Diego), is priced around $445.

  • 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 $444). Flying from United Kingdom to San Diego in July is currently the most expensive (average of $554). 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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Alternative routes for United Kingdom to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$533Average$715FlexibilityNo cancel feeOn-time69%
IberiaCheapest$599Average$817FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$640Average$830FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$664Average$851FlexibilityNo cancel feeOn-time71%

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