Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from San Antonio to London from $535

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 Antonio to London departing on 10/6. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Antonio to London

Cheap round-trip flights

Delta Logo
6:35 am - 8:45 amSAT-SOU
20h 10m2 stops
Delta Logo
5:35 pm - 5:15 pmSOU-SAT
29h 40m2 stops
$938Delta
Find Deal
Mon, Sep 22 - Tue, Sep 30
KLM Logo
3:25 pm - 5:00 pmSAT-SOU
19h 35m2 stops
KLM Logo
9:20 am - 11:07 pmSOU-SAT
19h 47m2 stops
$988KLM
Find Deal
Thu, Oct 2 - Thu, Oct 9
KLM Logo
11:35 am - 8:45 amSAT-SOU
15h 10m2 stops
KLM Logo
9:20 am - 12:31 amSOU-SAT
21h 11m2 stops
$1,299KLM
Find Deal
Thu, Sep 25 - Fri, Oct 10

KLM flights from San Antonio to Southampton

Our best KLM deals on San Antonio to Southampton flight tickets
KLM
Oct 2
SAT3:25 pmSan Antonio
19h 35m
2 stops
SOU5:00 pmSouthampton Eastleigh
Oct 9
SOU9:20 amSouthampton Eastleigh
19h 47m
2 stops
SAT11:07 pmSan Antonio
$988
Find similar
KLM
Sep 25
SAT11:35 amSan Antonio
15h 10m
2 stops
SOU8:45 amSouthampton Eastleigh
Oct 10
SOU9:20 amSouthampton Eastleigh
21h 11m
2 stops
SAT12:31 amSan Antonio
$1,299
Find similar

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 18, 2025.
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

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Mon 9/22

6:35 am-8:45 am

2 stops20h 10m

Southampton Eastleigh

Tue 9/30

5:35 pm-5:15 pm

2 stops29h 40m

$938

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Thu 10/2

3:25 pm-5:00 pm

2 stops19h 35m

Southampton Eastleigh

Thu 10/9

9:20 am-11:07 pm

2 stops19h 47m

$988

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Thu 9/25

11:35 am-8:45 am

2 stops15h 10m

Southampton Eastleigh

Fri 10/10

9:20 am-12:31 am

2 stops21h 11m

$1,299

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Mon 10/6

4:35 pm-5:00 pm

2 stops18h 25m

$535

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Mon 10/6

6:39 pm-8:10 am

3 stops55h 31m

$3,404

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

Flying to Southampton from San Antonio in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $990 when looking at flights departing in the afternoon. Flights to Southampton are more costly in the morning, with an average ticket price of $1,378. 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 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

Best Price Found

$535

Fastest flight time

15h 10m

Direct flights

None

Airports in Southampton

1 airport
The best one-way flight to Southampton from San Antonio in the past 72 hours is $535. The best round-trip flight deal from San Antonio to Southampton found on momondo in the last 72 hours is $938.
The fastest flight from San Antonio to Southampton takes 15h 10m
There are no direct flights from San Antonio to Southampton. Popular non-direct route for this connection is San Antonio Airport - Southampton Eastleigh Airport.
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
Search flight deals

  • 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 15h 10m 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.

An easier way to manage your Southampton trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/23
Sat 8/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom