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Cheap flights from San Diego to the United Kingdom from £178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to the United Kingdom departing on 11/8. 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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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
10:05 - 12:45
SAN
-
INV
18h 40m
2 stops
KLM Logo
13:15 - 11:50
INV
-
SAN
30h 35m
1 stop
£481KLM
Mon, 20 Apr - Mon, 27 Apr
British Airways Logo
19:40 - 21:35
SAN
-
INV
17h 55m
1 stop
British Airways Logo
07:50 - 14:55
INV
-
SAN
15h 05m
1 stop
£504British Airways
Mon, 4 May - Fri, 8 May
Air Canada Logo
12:45 - 13:20
SAN
-
LHR
16h 35m
1 stop
Air Canada Logo
15:05 - 20:50
LHR
-
SAN
13h 45m
1 stop
£505Air Canada
Sun, 26 Apr - Tue, 12 May
Virgin Atlantic Logo
13:05 - 06:45
SAN
-
LHR
33h 40m
1 stop
Virgin Atlantic Logo
17:10 - 11:50
LHR
-
SAN
26h 40m
1 stop
£506Virgin Atlantic
Sat, 15 Aug - Mon, 24 Aug
Air Canada Logo
18:10 - 13:20
SAN
-
LHR
35h 10m
1 stop
Air Canada Logo
09:30 - 20:50
LHR
-
SAN
19h 20m
2 stops
£508Air Canada
Sun, 26 Apr - Tue, 12 May
Lufthansa Logo
17:15 - 22:40
SAN
-
LHR
21h 25m
1 stop
Lufthansa Logo
06:30 - 20:12
LHR
-
SAN
21h 42m
2 stops
£511Lufthansa
Tue, 7 Apr - Thu, 23 Apr
British Airways Logo
16:45 - 14:40
SAN
-
GLA
13h 55m
1 stop
British Airways Logo
08:35 - 14:55
GLA
-
SAN
14h 20m
1 stop
£512British Airways
Tue, 18 Aug - Tue, 25 Aug
American Airlines Logo
16:33 - 18:40
SAN
-
GLA
18h 07m
2 stops
American Airlines Logo
05:55 - 14:55
GLA
-
SAN
17h 00m
1 stop
£520American Airlines
Tue, 18 Aug - Tue, 25 Aug
American Airlines Logo
09:20 - 10:30
SAN
-
GLA
17h 10m
2 stops
American Airlines Logo
13:05 - 23:52
GLA
-
SAN
18h 47m
2 stops
£527American Airlines
Tue, 18 Aug - Tue, 25 Aug
Virgin Atlantic Logo
13:40 - 19:45
SAN
-
LCY
22h 05m
1 stop
Virgin Atlantic Logo
17:10 - 11:50
LCY
-
SAN
26h 40m
1 stop
£544Virgin Atlantic
Tue, 21 Apr - Mon, 27 Apr

United Airlines flights from San Diego to United Kingdom

Our best United Airlines deals on San Diego to United Kingdom flight tickets
United Airlines
1 Aug
SAN22:40San Diego
14h 00m
1 stop
LHR20:40London Heathrow
25 Aug
LHR07:25London Heathrow
16h 00m
1 stop
SAN15:25San Diego
£515
United Airlines
26 Apr
SAN09:46San Diego
13h 39m
1 stop
LHR07:25London Heathrow
12 May
LHR07:25London Heathrow
16h 00m
1 stop
SAN15:25San Diego
£531
United Airlines
31 Mar
SAN13:20San Diego
34h 05m
1 stop
LHR07:25London Heathrow
10 Apr
LHR15:05London Heathrow
28h 55m
1 stop
SAN12:00San Diego
£533

Delta flights from San Diego to United Kingdom

Our best Delta deals on San Diego to United Kingdom flight tickets
Delta
18 Aug
SAN13:40San Diego
13h 05m
1 stop
LHR10:45London Heathrow
27 Aug
LHR06:30London Heathrow
13h 20m
1 stop
SAN11:50San Diego
£523
Delta
31 Mar
SAN13:40San Diego
13h 05m
1 stop
LHR10:45London Heathrow
14 Apr
LHR06:30London Heathrow
13h 20m
1 stop
SAN11:50San Diego
£524
Delta
31 Mar
SAN13:45San Diego
16h 05m
2 stops
LHR13:50London Heathrow
14 Apr
LHR06:30London Heathrow
13h 20m
1 stop
SAN11:50San Diego
£528

momondo Fare Finder

 
Customise your flight search to find flights from San Diego to United Kingdom 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 279,928 searches. Data last updated 7 March 2026.
Use the filters below to find and compare flights from San Diego to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoInverness

SAN - INV

SANINV

San Diego

Mon 20/4

10:05-12:45

2 stops18h 40m

Inverness

Mon 27/4

13:15-11:50

1 stop30h 35m

£481

San DiegoInverness

SAN - INV

SANINV

San Diego

Mon 4/5

19:40-21:35

1 stop17h 55m

Inverness

Fri 8/5

07:50-14:55

1 stop15h 05m

£504

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 26/4

12:45-13:20

1 stop16h 35m

London Heathrow

Tue 12/5

15:05-20:50

1 stop13h 45m

£505

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 15/8

13:05-06:45

1 stop33h 40m

London Heathrow

Mon 24/8

17:10-11:50

1 stop26h 40m

£506

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 26/4

18:10-13:20

1 stop35h 10m

London Heathrow

Tue 12/5

09:30-20:50

2 stops19h 20m

£508

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 7/4

17:15-22:40

1 stop21h 25m

London Heathrow

Thu 23/4

06:30-20:12

2 stops21h 42m

£511
Fastest return journey

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Tue 18/8

16:45-14:40

1 stop13h 55m

Glasgow Intl

Tue 25/8

08:35-14:55

1 stop14h 20m

£512

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Tue 18/8

16:33-18:40

2 stops18h 07m

Glasgow Intl

Tue 25/8

05:55-14:55

1 stop17h 00m

£520

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Tue 18/8

09:20-10:30

2 stops17h 10m

Glasgow Intl

Tue 25/8

13:05-23:52

2 stops18h 47m

£527

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 21/4

13:40-19:45

1 stop22h 05m

London City

Mon 27/4

17:10-11:50

1 stop26h 40m

£544

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

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

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 United Kingdom?

The cheapest month to fly to United Kingdom from San Diego is in October. Flight prices, which tend to average around £514, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from San Diego during the month February is also very affordable. Most momondo users find prices during this month for around £533.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from San Diego to United Kingdom is on a Monday. Travellers who choose to depart for United Kingdom on a Monday will often find tickets for as low as £514. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to United Kingdom for around £1,238.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £695. Try not to purchase tickets in the evening because they tend to be around £696. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £674 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Diego for as low as £547 on momondo.

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

There are 3 cabin classes available to choose from on San Diego to United Kingdom 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 San Diego to United Kingdom flights?

You could potentially save up to 61% on your flight if you consider stops on a San Diego to United Kingdom flight.

Cheap San Diego to United Kingdom flight deals and tips

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

Best price found

£427

Fastest flight time

10h 35m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from San Diego in the past 72 hours is £427. The best return flight deal from San Diego to United Kingdom found on momondo in the last 72 hours is £410.
The fastest flight from San Diego to United Kingdom takes 10h 35m
Direct flights go from San Diego to United Kingdom every day.
There are 1,286 airports in United Kingdom. From San Diego there are direct flights to London Heathrow (LHR).
Search flight deals

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

    Prices for flights from San Diego Airport to United Kingdom refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San Diego to United Kingdom

Compare and see reviews for airlines that fly from San Diego to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £486Free CancellationRating
6.7
7,778 reviews
Search British Airways flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to United Kingdom. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for San Diego to United Kingdom flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Diego to United Kingdom.

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

Yes. momondo can track prices for San Diego to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £21
Flights to Manchesterfrom £32
Flights to Birminghamfrom £34
Flights to Edinburghfrom £31
Flights to Belfastfrom £29
Flights to Glasgowfrom £31
Flights to Bristolfrom £31
Flights to Newcastle upon Tynefrom £31
Flights to Liverpoolfrom £34
Flights to Aberdeenfrom £43
Flights to Leedsfrom £59
Flights to Invernessfrom £40