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Cheap flights from San Antonio to London from $698

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to London departing on 9/22. 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
1 adult, Economy, 0 bags

Find the cheapest flights from San Antonio to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
8:50 am - 8:05 amSAT  San Antonio-SOU Southampton Eastleigh
17h 15m2 stops Toronto Pearson Intl Dublin
Aer Lingus Logo
8:00 pm - 9:13 pmSOU  Southampton Eastleigh-SAT San Antonio
31h 13m2 stops Dublin Toronto Pearson Intl
$698Aer Lingus
Tue, Sep 22 - Tue, Sep 29
KLM Logo
11:36 am - 8:35 amSAT  San Antonio-SOU Southampton Eastleigh
14h 59m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
KLM Logo
9:05 am - 9:14 pmSOU  Southampton Eastleigh-SAT San Antonio
18h 09m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$1,127KLM
Thu, Sep 24 - Thu, Oct 1
KLM Logo
6:10 pm - 4:50 pmSAT  San Antonio-SOU Southampton Eastleigh
16h 40m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
KLM Logo
5:20 pm - 3:53 pmSOU  Southampton Eastleigh-SAT San Antonio
28h 33m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$1,127KLM
Sun, Sep 20 - Sun, Sep 27
Aer Lingus Logo
7:28 am - 4:50 pmSAT  San Antonio-SOU Southampton Eastleigh
27h 22m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
9:15 am - 12:48 amSOU  Southampton Eastleigh-SAT San Antonio
21h 33m2 stops Dublin Chicago O'Hare Intl
$1,249Aer Lingus
Sun, Aug 23 - Tue, Sep 8
Aer Lingus Logo
7:28 am - 8:40 amSAT  San Antonio-SOU Southampton Eastleigh
19h 12m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
9:15 am - 12:48 amSOU  Southampton Eastleigh-SAT San Antonio
21h 33m2 stops Dublin Chicago O'Hare Intl
$1,256Aer Lingus
Sun, Aug 23 - Tue, Sep 8
Aer Lingus Logo
1:33 pm - 4:50 pmSAT  San Antonio-SOU Southampton Eastleigh
21h 17m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
8:00 pm - 6:09 pmSOU  Southampton Eastleigh-SAT San Antonio
28h 09m2 stops Dublin Chicago O'Hare Intl
$1,276Aer Lingus
Sun, Aug 23 - Tue, Sep 8
Aer Lingus Logo
7:28 am - 8:40 amSAT  San Antonio-SOU Southampton Eastleigh
19h 12m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
8:00 pm - 11:55 pmSOU  Southampton Eastleigh-SAT San Antonio
33h 55m2 stops Dublin Chicago O'Hare Intl
$1,278Aer Lingus
Sun, Aug 23 - Tue, Sep 8
Aer Lingus Logo
7:28 am - 8:40 amSAT  San Antonio-SOU Southampton Eastleigh
19h 12m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
8:00 pm - 11:55 pmSOU  Southampton Eastleigh-SAT San Antonio
33h 55m2 stops Dublin Chicago O'Hare Intl
$1,301Aer Lingus
Sun, Aug 23 - Tue, Sep 8
Multiple Airlines Logo
8:50 am - 7:30 pmSAT  San Antonio-SOU Southampton Eastleigh
28h 40m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
8:00 pm - 9:13 pmSOU  Southampton Eastleigh-SAT San Antonio
31h 13m3 stops Dublin Amsterdam Schiphol Toronto Pearson Intl
$2,683Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
8:50 am - 7:30 pmSAT  San Antonio-SOU Southampton Eastleigh
28h 40m3 stops Toronto Pearson Intl Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
8:00 pm - 9:13 pmSOU  Southampton Eastleigh-SAT San Antonio
31h 13m3 stops Dublin Amsterdam Schiphol Toronto Pearson Intl
$2,824Multiple Airlines
Thu, Sep 24 - Thu, Oct 1

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Aer Lingus flights from San Antonio to Southampton

Our best Aer Lingus deals on San Antonio to Southampton flight tickets
Aer Lingus
Sep 22
SAT8:50 amSan Antonio
17h 15m
2 stops
SOU8:05 amSouthampton Eastleigh
Sep 29
SOU8:00 pmSouthampton Eastleigh
31h 13m
2 stops
SAT9:13 pmSan Antonio
$698
Aer Lingus
Aug 23
SAT7:28 amSan Antonio
19h 12m
2 stops
SOU8:40 amSouthampton Eastleigh
Sep 8
SOU9:15 amSouthampton Eastleigh
21h 33m
2 stops
SAT12:48 amSan Antonio
$1,256
Aer Lingus
Aug 23
SAT1:33 pmSan Antonio
21h 17m
2 stops
SOU4:50 pmSouthampton Eastleigh
Sep 8
SOU8:00 pmSouthampton Eastleigh
28h 09m
2 stops
SAT6:09 pmSan Antonio
$1,276

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio 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 11, 2026.
Use the filters below to find and compare flights from San Antonio to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Tue 9/22

8:50 am-8:05 am

2 stops17h 15m

Southampton Eastleigh

Tue 9/29

8:00 pm-9:13 pm

2 stops31h 13m

$698
Quickest round-trip

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Thu 9/24

11:36 am-8:35 am

2 stops14h 59m

Southampton Eastleigh

Thu 10/1

9:05 am-9:14 pm

2 stops18h 09m

$1,127

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 9/20

6:10 pm-4:50 pm

2 stops16h 40m

Southampton Eastleigh

Sun 9/27

5:20 pm-3:53 pm

2 stops28h 33m

$1,127

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 8/23

7:28 am-4:50 pm

2 stops27h 22m

Southampton Eastleigh

Tue 9/8

9:15 am-12:48 am

2 stops21h 33m

$1,249

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 8/23

7:28 am-8:40 am

2 stops19h 12m

Southampton Eastleigh

Tue 9/8

9:15 am-12:48 am

2 stops21h 33m

$1,256

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 8/23

1:33 pm-4:50 pm

2 stops21h 17m

Southampton Eastleigh

Tue 9/8

8:00 pm-6:09 pm

2 stops28h 09m

$1,276

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 8/23

7:28 am-8:40 am

2 stops19h 12m

Southampton Eastleigh

Tue 9/8

8:00 pm-11:55 pm

2 stops33h 55m

$1,278

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Sun 8/23

7:28 am-8:40 am

2 stops19h 12m

Southampton Eastleigh

Tue 9/8

8:00 pm-11:55 pm

2 stops33h 55m

$1,301

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Thu 9/24

8:50 am-7:30 pm

2 stops28h 40m

Southampton Eastleigh

Thu 10/1

8:00 pm-9:13 pm

3 stops31h 13m

$2,683

San AntonioSouthampton

SAT San Antonio - SOU Southampton Eastleigh

SATSOU

San Antonio

Thu 9/24

8:50 am-7:30 pm

3 stops28h 40m

Southampton Eastleigh

Thu 10/1

8:00 pm-9:13 pm

3 stops31h 13m

$2,824

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 Antonio 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 airlines fly to Southampton?

British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to Southampton from San Antonio according to our data. British Airways is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 9 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from San Antonio to Southampton

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

Cheap San Antonio to Southampton (SAT to SOU) flight deals and tips

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

Fastest flight time

14h 59m

Direct flights

None
The fastest flight from San Antonio to Southampton takes 14h 59m
There are no direct flights from San Antonio to Southampton. There are no popular flight routes from San Antonio to Southampton.
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Frequently asked questions about flying from San Antonio to Southampton

  • How far is San Antonio to Southampton Eastleigh by plane?

    San Antonio and Southampton Eastleigh are 4952.6 mi apart from one another. Typically, this will take 14h 59m by plane in normal conditions.

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

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

  • How old do you have to be to fly from San Antonio Airport to Southampton Eastleigh Airport?

    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 Antonio 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.

Traveling 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 Antonio to Southampton?

Finding the right flight to Southampton from San Antonio is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Southampton quick and easy, saving you time and money.

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

Flights from San Antonio to Southampton with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Antonio 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 Antonio to Southampton.

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

Of course. momondo tracks the price of San Antonio 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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