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Cheap flights from the United Kingdom to San Diego from $322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to San Diego departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to San Diego

Recent round-trip flight deals from the United Kingdom to San Diego

Lufthansa Logo
7:25 am - 3:25 pmLHR-SAN
16h 00m1 stop
Lufthansa Logo
10:38 am - 7:25 amSAN-LHR
12h 47m1 stop
$575Lufthansa
Find Deal
Tue, Oct 7 - Tue, Oct 14
Lufthansa Logo
6:55 am - 3:25 pmLHR-SAN
16h 30m1 stop
Lufthansa Logo
12:52 pm - 9:40 amSAN-LHR
12h 48m1 stop
$582Lufthansa
Find Deal
Wed, Sep 17 - Mon, Sep 22
United Airlines Logo
7:25 am - 3:25 pmLHR-SAN
16h 00m1 stop
United Airlines Logo
11:08 am - 12:20 pmSAN-LHR
17h 12m2 stops
$616United Airlines
Find Deal
Tue, Sep 16 - Tue, Oct 14
United Airlines Logo
7:25 am - 3:25 pmLHR-SAN
16h 00m1 stop
United Airlines Logo
2:21 pm - 12:20 pmSAN-LHR
13h 59m2 stops
$620United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 24
British Airways Logo
3:10 pm - 10:24 pmLHR-SAN
15h 14m1 stop
British Airways Logo
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
$675British Airways
Find Deal
Tue, Oct 7 - Mon, Oct 20
British Airways Logo
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
British Airways Logo
4:40 pm - 11:25 amSAN-LHR
10h 45mnonstop
$677British Airways
Find Deal
Wed, Sep 24 - Wed, Oct 22
Delta Logo
6:00 am - 12:00 pmGLA-SAN
14h 00m1 stop
Delta Logo
9:59 am - 4:10 pmSAN-GLA
22h 11m2 stops
$729Delta
Find Deal
Tue, Sep 2 - Wed, Sep 17
Delta Logo
6:00 am - 12:00 pmGLA-SAN
14h 00m1 stop
Delta Logo
9:59 am - 4:10 pmSAN-GLA
22h 11m2 stops
$734Delta
Find Deal
Tue, Sep 2 - Wed, Sep 17
American Airlines Logo
9:40 am - 4:10 pmMAN-SAN
14h 30m1 stop
American Airlines Logo
4:25 pm - 7:15 pmSAN-MAN
18h 50m2 stops
$868American Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 30
American Airlines Logo
9:40 am - 4:10 pmMAN-SAN
14h 30m1 stop
American Airlines Logo
4:25 pm - 7:15 pmSAN-MAN
18h 50m2 stops
$873American Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 30

Lufthansa flights from United Kingdom to San Diego

Our best Lufthansa deals on United Kingdom to San Diego flight tickets
Lufthansa
Oct 7
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
Oct 14
SAN10:38 amSan Diego
12h 47m
1 stop
LHR7:25 amLondon Heathrow
$575
Find similar
Lufthansa
Sep 17
LHR6:55 amLondon Heathrow
16h 30m
1 stop
SAN3:25 pmSan Diego
Sep 22
SAN12:52 pmSan Diego
12h 48m
1 stop
LHR9:40 amLondon Heathrow
$582
Find similar
Lufthansa
Oct 7
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
Oct 20
SAN10:38 amSan Diego
12h 47m
1 stop
LHR7:25 amLondon Heathrow
$585
Find similar

SWISS flights from United Kingdom to San Diego

Our best SWISS deals on United Kingdom to San Diego flight tickets
SWISS
Sep 16
LHR6:00 amLondon Heathrow
24h 02m
2 stops
SAN10:02 pmSan Diego
Sep 23
SAN1:58 pmSan Diego
33h 57m
2 stops
LHR7:55 amLondon Heathrow
$621
Find similar
SWISS
Sep 16
LCY9:25 amLondon City
19h 23m
2 stops
SAN8:48 pmSan Diego
Oct 14
SAN1:59 pmSan Diego
19h 31m
2 stops
LCY5:30 pmLondon City
$645
Find similar
SWISS
Nov 23
LGW6:40 pmLondon Gatwick
35h 40m
2 stops
SAN10:20 pmSan Diego
Dec 2
SAN1:05 pmSan Diego
20h 45m
2 stops
LGW5:50 pmLondon Gatwick
$647
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 2, 2025.
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

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 10/7

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Tue 10/14

10:38 am-7:25 am

1 stop12h 47m

$575

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 9/17

6:55 am-3:25 pm

1 stop16h 30m

San Diego

Mon 9/22

12:52 pm-9:40 am

1 stop12h 48m

$582

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 9/16

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Tue 10/14

11:08 am-12:20 pm

2 stops17h 12m

$616

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 9/10

7:25 am-3:25 pm

1 stop16h 00m

San Diego

Wed 9/24

2:21 pm-12:20 pm

2 stops13h 59m

$620

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 10/7

3:10 pm-10:24 pm

1 stop15h 14m

San Diego

Mon 10/20

7:50 pm-2:20 pm

Nonstop10h 30m

$675

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 9/24

2:55 pm-6:00 pm

Nonstop11h 05m

San Diego

Wed 10/22

4:40 pm-11:25 am

Nonstop10h 45m

$677

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Tue 9/2

6:00 am-12:00 pm

1 stop14h 00m

San Diego

Wed 9/17

9:59 am-4:10 pm

2 stops22h 11m

$729

GlasgowSan Diego

GLA - SAN

GLASAN

Glasgow Intl

Tue 9/2

6:00 am-12:00 pm

1 stop14h 00m

San Diego

Wed 9/17

9:59 am-4:10 pm

2 stops22h 11m

$734

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Mon 11/17

9:40 am-4:10 pm

1 stop14h 30m

San Diego

Sun 11/30

4:25 pm-7:15 pm

2 stops18h 50m

$868

ManchesterSan Diego

MAN - SAN

MANSAN

Manchester

Mon 11/17

9:40 am-4:10 pm

1 stop14h 30m

San Diego

Sun 11/30

4:25 pm-7:15 pm

2 stops18h 50m

$873

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from United Kingdom to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of February, then departing from United Kingdom during the month March is also very affordable. Most momondo users find prices during this month for around $653.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from United Kingdom to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $727. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $842. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $727. Flights at noon are often more expensive with an average ticket price of $808.

What is the cheapest United Kingdom to San Diego flight route?

Fly from London Heathrow to San Diego for the best United Kingdom - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $762 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from United Kingdom for as low as $671 on momondo.

What cabin class options are available on United Kingdom to San Diego flights?

There are 3 cabin classes available to choose from on United Kingdom to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to San Diego flights?

You could potentially save up to 6% on your flight if you consider stops on a United Kingdom to San Diego flight.

Cheap United Kingdom to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to San Diego

Best Price Found

$322

Fastest flight time

11h 05m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from United Kingdom in the past 72 hours is $322. The best round-trip flight deal from United Kingdom to San Diego found on momondo in the last 72 hours is $575.
The fastest flight from United Kingdom to San Diego takes 11h 05m
Direct flights go from United Kingdom to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to San Diego Airport?

    Prices for flights from United Kingdom to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from United Kingdom to San Diego Airport?

  • How old do you have to be to fly from United Kingdom to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from United Kingdom to San Diego?

Best airlines flying from United Kingdom to San Diego

Compare and see reviews for airlines that fly from United Kingdom to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $533Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights
British AirwaysPriceFrom $572Free CancellationRating
6.6
7,230 reviews
Search British Airways flights
American AirlinesPriceFrom $579Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $599Free CancellationRating
7.0
2,864 reviews
Search Iberia flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
San Ysidro
Poway
Borrego Springs
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to San Diego?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from United Kingdom.

Can I find flights from United Kingdom to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to San Diego?

Once you have performed a search for United Kingdom to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United Kingdom to San Diego right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Diego from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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