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Cheap flights from San Diego to the United Kingdom from £188

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 21/4. 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.
Delta Logo
07:00 - 06:20
SAN
-
LHR
16h 20m
1 stop
Delta Logo
09:55 - 11:50
LHR
-
SAN
33h 55m
1 stop
£498Delta
Wed, 25 Mar - Mon, 30 Mar
Air Canada Logo
18:10 - 06:35
SAN
-
LHR
28h 25m
2 stops
Air Canada Logo
17:40 - 12:00
LHR
-
SAN
26h 20m
2 stops
£499Air Canada
Sun, 5 Apr - Tue, 21 Apr
Virgin Atlantic Logo
15:35 - 15:35
SAN
-
LHR
16h 00m
1 stop
Virgin Atlantic Logo
20:55 - 11:50
LHR
-
SAN
22h 55m
1 stop
£502Virgin Atlantic
Wed, 22 Apr - Wed, 29 Apr
JetBlue Logo
10:44 - 09:30
SAN
-
LHR
15h 46m
1 stop
JetBlue Logo
07:25 - 19:52
LHR
-
SAN
19h 27m
1 stop
£502JetBlue
Tue, 17 Mar - Tue, 24 Mar
Virgin Atlantic Logo
13:40 - 16:15
SAN
-
LHR
18h 35m
1 stop
Virgin Atlantic Logo
20:55 - 11:50
LHR
-
SAN
22h 55m
1 stop
£505Virgin Atlantic
Tue, 14 Apr - Wed, 22 Apr
British Airways Logo
09:05 - 10:05
SAN
-
GLA
17h 00m
2 stops
British Airways Logo
06:25 - 14:55
GLA
-
SAN
16h 30m
1 stop
£512British Airways
Mon, 11 May - Wed, 20 May
American Airlines Logo
14:04 - 16:45
SAN
-
GLA
18h 41m
2 stops
American Airlines Logo
07:00 - 18:05
GLA
-
SAN
19h 05m
2 stops
£518American Airlines
Tue, 14 Apr - Tue, 28 Apr
American Airlines Logo
12:45 - 14:15
SAN
-
GLA
18h 30m
2 stops
American Airlines Logo
10:50 - 22:23
GLA
-
SAN
19h 33m
2 stops
£535American Airlines
Wed, 25 Mar - Wed, 1 Apr
British Airways Logo
19:40 - 21:30
SAN
-
GLA
17h 50m
1 stop
British Airways Logo
17:40 - 14:55
GLA
-
SAN
29h 15m
1 stop
£545British Airways
Thu, 30 Jul - Mon, 17 Aug
JetBlue Logo
21:15 - 09:20
SAN
-
EDI
28h 05m
1 stop
JetBlue Logo
11:30 - 19:17
EDI
-
SAN
15h 47m
1 stop
£579JetBlue
Fri, 1 May - Wed, 6 May

Air Canada flights from San Diego to United Kingdom

Our best Air Canada deals on San Diego to United Kingdom flight tickets
Air Canada
5 Apr
SAN18:10San Diego
28h 25m
2 stops
LHR06:35London Heathrow
21 Apr
LHR17:40London Heathrow
26h 20m
2 stops
SAN12:00San Diego
£499
Air Canada
28 Apr
SAN18:10San Diego
35h 10m
1 stop
LHR13:20London Heathrow
6 May
LHR17:15London Heathrow
35h 28m
2 stops
SAN20:43San Diego
£500
Air Canada
5 Apr
SAN18:10San Diego
35h 10m
1 stop
LHR13:20London Heathrow
21 Apr
LHR17:40London Heathrow
26h 13m
1 stop
SAN11:53San Diego
£504

Delta flights from San Diego to United Kingdom

Our best Delta deals on San Diego to United Kingdom flight tickets
Delta
25 Mar
SAN07:00San Diego
16h 20m
1 stop
LHR06:20London Heathrow
30 Mar
LHR09:55London Heathrow
33h 55m
1 stop
SAN11:50San Diego
£498
Delta
22 Apr
SAN07:15San Diego
15h 30m
1 stop
LHR06:45London Heathrow
28 Apr
LHR06:30London Heathrow
13h 20m
1 stop
SAN11:50San Diego
£502
Delta
11 Mar
SAN06:15San Diego
19h 30m
1 stop
LHR08:45London Heathrow
18 Mar
LHR06:30London Heathrow
19h 20m
2 stops
SAN18:50San Diego
£505

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 28 February 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

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 25/3

07:00-06:20

1 stop16h 20m

London Heathrow

Mon 30/3

09:55-11:50

1 stop33h 55m

£498

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 5/4

18:10-06:35

2 stops28h 25m

London Heathrow

Tue 21/4

17:40-12:00

2 stops26h 20m

£499

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 22/4

15:35-15:35

1 stop16h 00m

London Heathrow

Wed 29/4

20:55-11:50

1 stop22h 55m

£502

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 17/3

10:44-09:30

1 stop15h 46m

London Heathrow

Tue 24/3

07:25-19:52

1 stop19h 27m

£502

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 14/4

13:40-16:15

1 stop18h 35m

London Heathrow

Wed 22/4

20:55-11:50

1 stop22h 55m

£505

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Mon 11/5

09:05-10:05

2 stops17h 00m

Glasgow Intl

Wed 20/5

06:25-14:55

1 stop16h 30m

£512

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Tue 14/4

14:04-16:45

2 stops18h 41m

Glasgow Intl

Tue 28/4

07:00-18:05

2 stops19h 05m

£518

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Wed 25/3

12:45-14:15

2 stops18h 30m

Glasgow Intl

Wed 1/4

10:50-22:23

2 stops19h 33m

£535

San DiegoGlasgow

SAN - GLA

SANGLA

San Diego

Thu 30/7

19:40-21:30

1 stop17h 50m

Glasgow Intl

Mon 17/8

17:40-14:55

1 stop29h 15m

£545

San DiegoEdinburgh

SAN - EDI

SANEDI

San Diego

Fri 1/5

21:15-09:20

1 stop28h 05m

Edinburgh Turnhouse

Wed 6/5

11:30-19:17

1 stop15h 47m

£579

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 £508, 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 £529.

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 £509. 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 £1,228.

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 £689. Try not to purchase tickets in the evening because they tend to be around £690. 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 £667 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 £542 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

£423

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 £423. The best return flight deal from San Diego to United Kingdom found on momondo in the last 72 hours is £407.
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 £483Free CancellationRating
6.7
7,772 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 £30
Flights to Manchesterfrom £32
Flights to Birminghamfrom £33
Flights to Edinburghfrom £30
Flights to Belfastfrom £30
Flights to Glasgowfrom £32
Flights to Bristolfrom £33
Flights to Newcastle upon Tynefrom £30
Flights to Liverpoolfrom £30
Flights to Aberdeenfrom £39
Flights to Leedsfrom £50
Flights to Invernessfrom £36