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Cheap flights from San Diego to London from £393

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 London departing on 15/4. 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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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Air Europa Logo
06:15 - 08:35
SAN
-
SOU
18h 20m
2 stops
Air Europa Logo
17:20 - 11:50
SOU
-
SAN
26h 30m
1 stop
£3,073Air Europa
Sun, 5 Apr - Fri, 10 Apr
Scandinavian Airlines Logo
06:15 - 08:35
SAN
-
SOU
18h 20m
2 stops
Scandinavian Airlines Logo
09:05 - 20:45
SOU
-
SAN
19h 40m
2 stops
£3,081Scandinavian Airlines
Sun, 5 Apr - Fri, 10 Apr
British Airways Logo
16:45 - 20:45
SAN
-
SOU
20h 00m
2 stops
British Airways Logo
19:55 - 14:55
SOU
-
SAN
27h 00m
2 stops
£4,369British Airways
Thu, 23 Apr - Mon, 27 Apr
British Airways Logo
19:40 - 08:25
SAN
-
SOU
28h 45m
2 stops
British Airways Logo
06:50 - 14:55
SOU
-
SAN
40h 05m
2 stops
£4,378British Airways
Sun, 23 Aug - Thu, 27 Aug
British Airways Logo
16:45 - 20:45
SAN
-
SOU
20h 00m
2 stops
British Airways Logo
19:55 - 17:50
SOU
-
SAN
29h 55m
2 stops
£4,379British Airways
Sun, 31 May - Wed, 17 Jun
Multiple Airlines Logo
19:40 - 08:40
SAN
-
SOU
29h 00m
2 stops
Multiple Airlines Logo
12:35 - 12:52
SOU
-
SAN
32h 17m
3 stops
£8,589Multiple Airlines
Sun, 5 Apr - Fri, 10 Apr

British Airways flights from San Diego to Southampton

Our best British Airways deals on San Diego to Southampton flight tickets
British Airways
23 Apr
SAN16:45San Diego
20h 00m
2 stops
SOU20:45Southampton Eastleigh
27 Apr
SOU19:55Southampton Eastleigh
27h 00m
2 stops
SAN14:55San Diego
£4,369
British Airways
23 Aug
SAN19:40San Diego
28h 45m
2 stops
SOU08:25Southampton Eastleigh
27 Aug
SOU06:50Southampton Eastleigh
40h 05m
2 stops
SAN14:55San Diego
£4,378
British Airways
31 May
SAN16:45San Diego
20h 00m
2 stops
SOU20:45Southampton Eastleigh
17 Jun
SOU19:55Southampton Eastleigh
29h 55m
2 stops
SAN17:50San Diego
£4,379

momondo Fare Finder

 
Customise your flight search to find flights from San Diego to Southampton 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 23 March 2026.
Use the filters below to find and compare flights from San Diego to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 5/4

06:15-08:35

2 stops18h 20m

Southampton Eastleigh

Fri 10/4

17:20-11:50

1 stop26h 30m

£3,073
Fastest return journey

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 5/4

06:15-08:35

2 stops18h 20m

Southampton Eastleigh

Fri 10/4

09:05-20:45

2 stops19h 40m

£3,081

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Thu 23/4

16:45-20:45

2 stops20h 00m

Southampton Eastleigh

Mon 27/4

19:55-14:55

2 stops27h 00m

£4,369

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 23/8

19:40-08:25

2 stops28h 45m

Southampton Eastleigh

Thu 27/8

06:50-14:55

2 stops40h 05m

£4,378

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 31/5

16:45-20:45

2 stops20h 00m

Southampton Eastleigh

Wed 17/6

19:55-17:50

2 stops29h 55m

£4,379

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 5/4

19:40-08:40

2 stops29h 00m

Southampton Eastleigh

Fri 10/4

12:35-12:52

3 stops32h 17m

£8,589
Cheapest one-way
Fastest single journey

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Wed 15/4

06:15-19:30

2 stops29h 15m

£393

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Wed 15/4

07:40-07:25

3 stops39h 45m

£433

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from San Diego to Southampton

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 airline that flies from San Diego to Southampton Eastleigh?

Aer Lingus is the most popular carrier operating from San Diego to Southampton Eastleigh

When to book flights from San Diego to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Diego to Southampton (SAN to SOU) flight deals and tips

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

Fastest flight time

18h 05m

Direct flights

None
The fastest flight from San Diego to Southampton takes 18h 05m
There are no direct flights from San Diego to Southampton. There are no popular flight routes from San Diego to Southampton.
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  • How far is San Diego to Southampton Eastleigh by plane?

    Southampton Eastleigh is 5462.0 mi away from San Diego. 18h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Diego Airport to Southampton Eastleigh Airport?

    Prices for flights from San Diego Airport to Southampton Eastleigh Airport were last updated today.

  • How old do you have to be to fly from San Diego Airport to Southampton Eastleigh 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 San Diego Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The required travel and health documents for your Southampton Eastleigh 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 Southampton Eastleigh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to Southampton for you.

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

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

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

Once all potential San Diego to Southampton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from San Diego to Southampton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southampton and let you know when they change.

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