How long is the flight from Southampton to San Antonio?

There are many flights that can get you from Southampton to San Antonio in 20h 38m. Fly via Aer Lingus to get the fastest option. Southampton and San Antonio are separated by a distance of 4947 mi.

In terms of precipitation, rainfall in San Antonio ranges from 41.0 - 95.0 inches per month. May is typically the wettest month, when rainfall can reach 95.0 mm. December is typically the driest time to visit San Antonio when rainfall is around 41.0 mm.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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

When flying from Southampton to San Antonio, 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 Antonio that include hotel bookings?

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

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

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

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

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

£1,041+ Cheap Flights from Southampton to San Antonio

Cheap flight deals from Southampton to San Antonio

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Cheapest flights from Southampton to San Antonio
Explore the most affordable flight options available from Southampton to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Sat 24/1009:20 -

2 stops20h 38m

Sat 31/1015:09 -

2 stops36h 41m

Deal found 9/9£1,041

Sat 24/1009:20 -

2 stops20h 38m

Sat 31/1012:46 -

3 stops39h 04m

Deal found 9/9£1,248

Find flight deals from Southampton to San Antonio

Round-trip from	£1,041
Popular in	July
Cheapest in	February
Average price	£698

Aer Lingus
24/10-31/10
4 total stops
57h 19m total
Southampton to San Antonio

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£124 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Cheapflights Fare Finder

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

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SouthamptonSan Antonio

SOU Southampton Eastleigh - SAT San Antonio

SOUSAT

Southampton Eastleigh

Sat 24/10

09:20-23:58

2 stops20h 38m

San Antonio

Sat 31/10

15:09-08:50

2 stops36h 41m

£1,041

SouthamptonSan Antonio

SOU Southampton Eastleigh - SAT San Antonio

SOUSAT

Southampton Eastleigh

Sat 24/10

09:20-23:58

2 stops20h 38m

San Antonio

Sat 31/10

12:46-08:50

3 stops39h 04m

£1,248

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Sorted by cheapest first

Best time to book a flight from Southampton to San Antonio

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

SOU-SAT

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 Antonio?
There are many flights that can get you from Southampton to San Antonio in 20h 38m. Fly via Aer Lingus to get the fastest option. Southampton and San Antonio are separated by a distance of 4947 mi.
Can I find deals for flights from Southampton to San Antonio that include hotel bookings?
Yes. In addition to deals on Southampton to San Antonio flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to San Antonio.
Can I find deals for business class flights from Southampton to San Antonio?
Yes. Cheapflights offers flight deals from Southampton to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights helps you search for flights from Southampton to San Antonio via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Antonio from Southampton.

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

Yes, we can. To see specific flights from Southampton to San Antonio with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Southampton to San Antonio flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Southampton to San Antonio from £1,041

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to San Antonio

Cheapest flights from Southampton to San AntonioExplore the most affordable flight options available from Southampton to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from Southampton to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Southampton to San AntonioDiscover carefully curated flight deals from Southampton to San Antonio that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Southampton to San Antonio that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Southampton to San AntonioDiscover last-minute flight deals from Southampton to San Antonio. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to San Antonio. Data last updated 10 September 2026 and is based on user searches.

Find flight deals from Southampton to San Antonio

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

Best time to book a flight from Southampton to San Antonio

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

Related info for your journey

How long is the flight from Southampton to San Antonio?

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

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

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

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 Antonio

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

Complete your trip

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

Direct flights to Texas

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

Search flights from Southampton to San Antonio by cabin class

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Southampton and San Antonio flights

Browse other Southampton and San Antonio flight options. Last updated on 10 September 2026.

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

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

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

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

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Travel Smart

Cheapest flights from Southampton to San Antonio
Explore the most affordable flight options available from Southampton to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Southampton to San Antonio
Discover carefully curated flight deals from Southampton to San Antonio that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Southampton to San Antonio
Discover last-minute flight deals from Southampton to San Antonio. Data last updated 10 September 2026 and is based on user searches.