How long is the flight from Southampton to San Diego?

There are many flights that can get you from Southampton to San Diego in 19h 08m. Fly via KLM, Delta, or British Airways to get the fastest option. Southampton and San Diego are separated by a distance of 5462 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What is the cheapest time of day to fly from SOU to SAN?

When flying from Southampton to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Southampton to San Diego that include hotel bookings?

Yes. In addition to deals on Southampton to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to San Diego?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to San Diego.

Can I find deals for business class flights from Southampton to San Diego?

Yes. Cheapflights offers flight deals from Southampton to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£755+ Cheap Flights from Southampton to San Diego

Cheap flight deals from Southampton to San Diego

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Southampton to San Diego
Explore the most affordable flight options available from Southampton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2026.

Mon 30/1117:45 -

1 stop26h 25m

Thu 10/1211:07 -

2 stops37h 48m

Deal found 23/10£755

Mon 30/1117:45 -

1 stop26h 25m

Thu 10/1214:05 -

1 stop19h 00m

Deal found 23/10£809

Mon 30/1119:45 -

2 stops28h 25m

Thu 10/1206:30 -

3 stops29h 00m

Deal found 23/10£1,270

Tue 3/1119:45 -

2 stops28h 25m

Fri 6/1118:00 -

2 stops42h 20m

Deal found 24/10£3,182

Find flight deals from Southampton to San Diego

Round-trip from	£755
Popular in	July
Cheapest in	January
Average price	£713

KLM
30/11-10/12
3 total stops
64h 13m total
Southampton to San Diego

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£95 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Mon 30/11

17:45-12:10

1 stop26h 25m

San Diego

Thu 10/12

11:07-08:55

2 stops37h 48m

£755

Fastest return journey

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Wed 24/3

08:40-20:48

2 stops19h 08m

San Diego

Sun 11/4

22:10-08:45

2 stops26h 35m

£1,056

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Tue 23/3

19:45-17:10

2 stops28h 25m

San Diego

Thu 8/4

16:45-19:35

2 stops18h 50m

£1,126

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Mon 29/3

19:35-14:55

2 stops51h 20m

San Diego

Thu 8/4

16:45-19:35

2 stops18h 50m

£1,134

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Sat 27/3

10:15-14:55

2 stops59h 40m

San Diego

Mon 12/4

16:45-19:35

2 stops18h 50m

£1,260

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Mon 30/11

19:45-16:10

2 stops28h 25m

San Diego

Thu 10/12

06:30-19:30

3 stops29h 00m

£1,270

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Fri 26/3

09:00-17:10

2 stops39h 10m

San Diego

Mon 12/4

16:45-19:35

2 stops18h 50m

£1,290

SouthamptonSan Diego

SOU Southampton Eastleigh - SAN San Diego

SOUSAN

Southampton Eastleigh

Thu 25/3

16:10-17:10

2 stops56h 00m

San Diego

Sat 10/4

16:45-19:00

2 stops18h 15m

£1,336

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Sorted by cheapest first

Best time to book a flight from Southampton to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Southampton with our price prediction graph.

SOU-SAN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Southampton to San Diego?
There are many flights that can get you from Southampton to San Diego in 19h 08m. Fly via KLM, Delta, or British Airways to get the fastest option. Southampton and San Diego are separated by a distance of 5462 mi. This flight may include one or multiple stops.
Can I find deals for flights from Southampton to San Diego that include hotel bookings?
Yes. In addition to deals on Southampton to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to San Diego.
Can I find deals for business class flights from Southampton to San Diego?
Yes. Cheapflights offers flight deals from Southampton to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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How does Cheapflights help users find flights from Southampton to San Diego?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southampton to San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Southampton to San Diego?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southampton to San Diego for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southampton to San Diego with no change fees?

Certainly. Search results for flights to San Diego from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Southampton to San Diego become cheaper?

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Cheap flights from Southampton to San Diego from £755

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to San Diego

Cheapest flights from Southampton to San DiegoExplore the most affordable flight options available from Southampton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2026.

Explore the most affordable flight options available from Southampton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2026.

Best flights from Southampton to San DiegoDiscover carefully curated flight deals from Southampton to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 October 2026.

Discover carefully curated flight deals from Southampton to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 October 2026.

Last-minute flights from Southampton to San DiegoDiscover last-minute flight deals from Southampton to San Diego. Data last updated 27 October 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to San Diego. Data last updated 27 October 2026 and is based on user searches.

Find flight deals from Southampton to San Diego

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Use the filters below to find and compare flights from Southampton to San Diego that are best for you.

Best time to book a flight from Southampton to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Southampton with our price prediction graph.

Related info for your journey

How long is the flight from Southampton to San Diego?

Can I find deals for flights from Southampton to San Diego that include hotel bookings?

How can I find direct flights from Southampton to San Diego?

Can I find deals for business class flights from Southampton to San Diego?

Travelling to a place near San Diego?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southampton to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Diego by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Southampton to San Diego by cabin class

Find flights from Southampton to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Southampton and San Diego flights

Browse other Southampton and San Diego flight options. Last updated on 27 October 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 27 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Diego

Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 October 2026.

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How does Cheapflights help users find flights from Southampton to San Diego?

Why should you use Cheapflights to find cheap flight tickets from Southampton to San Diego?

Can Cheapflights find flights from Southampton to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to San Diego become cheaper?

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Cheapest flights from Southampton to San Diego
Explore the most affordable flight options available from Southampton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2026.

Best flights from Southampton to San Diego
Discover carefully curated flight deals from Southampton to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 October 2026.

Last-minute flights from Southampton to San Diego
Discover last-minute flight deals from Southampton to San Diego. Data last updated 27 October 2026 and is based on user searches.