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Cheap flights from San Diego to London from $426

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 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Multiple Airlines Logo
SAN-SOU
5462 mimulti-stop
Multiple Airlines Logo
SOU-SAN
5462 mimulti-stop
Multiple Airlines
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Delta flights from San Diego to Southampton

Our best Delta deals on San Diego to Southampton flight tickets
Delta
Aug 7
SAN1:55 pmSan Diego
34h 50m
1 stop
SOU8:45 amSouthampton Eastleigh
Aug 15
SOU9:20 amSouthampton Eastleigh
21h 31m
2 stops
SAN10:51 pmSan Diego
$1,479
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Delta
Aug 7
SAN6:15 amSan Diego
18h 30m
2 stops
SOU8:45 amSouthampton Eastleigh
Aug 15
SOU9:20 amSouthampton Eastleigh
19h 23m
2 stops
SAN8:43 pmSan Diego
$1,483
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momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 1, 2025.
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

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 9/21

9:25 pm-8:30 am

3 stops51h 05m

$426

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 9/21

7:50 pm-11:45 am

2 stops31h 55m

$504

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sun 9/21

1:55 pm-8:45 am

1 stop34h 50m

$515

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Fri 12/5

10:10 pm-5:25 pm

2 stops35h 15m

$4,626

Flights are sorted by cheapest round-trip 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 day to depart on your flight to Southampton?

On average, the least expensive day to fly to Southampton from San Diego is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,075. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Southampton for around $1,328.

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

Flying to Southampton from San Diego in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,047 when looking at flights departing in the afternoon. Flights to Southampton are more costly in the morning, with an average ticket price of $1,328. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 round-trip 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

31h 55m

Direct flights

None

Airports in Southampton

1 airport
The fastest flight from San Diego to Southampton takes 31h 55m
There are no direct flights from San Diego to Southampton. Popular non-direct route for this connection is San Diego Airport - Southampton Eastleigh Airport.
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
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  • How far is San Diego to Southampton Eastleigh by plane?

    A flight from San Diego to Southampton Eastleigh will travel around 5462.0 mi.

  • 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 refresh daily.

  • 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 travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

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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?

All flight searches from San Diego to Southampton on momondo can be filtered to show those which offer flexible booking policies.

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

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 Southampton.

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

Of course. momondo tracks the price of San Diego to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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