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Cheap flights from San Antonio to Buenos Aires from $439

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 Buenos Aires departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Antonio to Buenos Aires

Cheap round-trip flights

Multiple Airlines Logo
7:35 pm - 4:00 pmSAT-AEP
42h 25m3 stops
Multiple Airlines Logo
2:30 pm - 10:27 pmAEP-SAT
34h 57m3 stops
$910Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
7:35 pm - 5:55 amSAT-EZE
32h 20m3 stops
Multiple Airlines Logo
7:35 am - 2:07 pmEZE-SAT
33h 32m3 stops
$961Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
6:30 am - 9:00 amSAT-EZE
23h 30m1 stop
Delta Logo
8:55 pm - 12:10 pmEZE-SAT
18h 15m1 stop
$975Delta
Find Deal
Thu, Nov 13 - Thu, Nov 20
Delta Logo
10:45 am - 9:00 amSAT-EZE
19h 15m1 stop
Delta Logo
11:55 pm - 11:30 amEZE-SAT
14h 35m1 stop
$1,015Delta
Find Deal
Fri, Jan 16 - Thu, Feb 5
LATAM Airlines Logo
1:15 pm - 4:00 pmSAT-AEP
23h 45m2 stops
LATAM Airlines Logo
5:15 pm - 10:00 amAEP-SAT
19h 45m2 stops
$1,015LATAM Airlines
Find Deal
Fri, Jan 16 - Thu, Feb 5
United Airlines Logo
4:30 pm - 7:20 amSAT-EZE
35h 50m2 stops
United Airlines Logo
11:55 pm - 7:37 pmEZE-SAT
22h 42m1 stop
$1,020United Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 20
LATAM Airlines Logo
5:30 am - 9:35 amSAT-EZE
25h 05m2 stops
LATAM Airlines Logo
11:00 am - 5:22 pmEZE-SAT
33h 22m2 stops
$1,039LATAM Airlines
Find Deal
Wed, Feb 11 - Sat, Feb 28
United Airlines Logo
11:40 am - 8:20 amSAT-EZE
18h 40m1 stop
United Airlines Logo
10:05 pm - 5:47 pmEZE-SAT
22h 42m1 stop
$1,050United Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
American Airlines Logo
12:29 pm - 8:20 amSAT-EZE
16h 51m1 stop
American Airlines Logo
10:10 am - 11:52 pmEZE-SAT
16h 42m1 stop
$1,132American Airlines
Find Deal
Wed, Feb 11 - Sat, Feb 28
American Airlines Logo
12:55 pm - 8:00 amSAT-EZE
16h 05m1 stop
American Airlines Logo
10:50 pm - 11:26 pmEZE-SAT
27h 36m1 stop
$1,194American Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 20

LATAM Airlines flights from San Antonio to Buenos Aires

Our best LATAM Airlines deals on San Antonio to Buenos Aires flight tickets
LATAM Airlines
Jan 16
SAT1:15 pmSan Antonio
23h 45m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Feb 5
AEP5:15 pmBuenos Aires Jorge Newbery
19h 45m
2 stops
SAT10:00 amSan Antonio
$1,015
Find similar
LATAM Airlines
Feb 11
SAT5:30 amSan Antonio
25h 05m
2 stops
EZE9:35 amBuenos Aires Ministro Pistarini
Feb 28
EZE11:00 amBuenos Aires Ministro Pistarini
33h 22m
2 stops
SAT5:22 pmSan Antonio
$1,039
Find similar
LATAM Airlines
Oct 30
SAT8:00 amSan Antonio
19h 55m
2 stops
EZE5:55 amBuenos Aires Ministro Pistarini
Nov 5
EZE4:05 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
SAT12:20 amSan Antonio
$1,125
Find similar

United Airlines flights from San Antonio to Buenos Aires

Our best United Airlines deals on San Antonio to Buenos Aires flight tickets
United Airlines
Nov 13
SAT4:30 pmSan Antonio
35h 50m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Nov 20
EZE11:55 pmBuenos Aires Ministro Pistarini
22h 42m
1 stop
SAT7:37 pmSan Antonio
$1,020
Find similar
United Airlines
Oct 30
SAT11:40 amSan Antonio
18h 40m
1 stop
EZE8:20 amBuenos Aires Ministro Pistarini
Nov 6
EZE10:05 pmBuenos Aires Ministro Pistarini
22h 42m
1 stop
SAT5:47 pmSan Antonio
$1,050
Find similar
United Airlines
Oct 30
SAT1:23 pmSan Antonio
16h 57m
2 stops
EZE8:20 amBuenos Aires Ministro Pistarini
Nov 6
EZE10:05 pmBuenos Aires Ministro Pistarini
21h 53m
2 stops
SAT4:58 pmSan Antonio
$1,055
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Buenos Aires 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 September 17, 2025.
Use the filters below to find and compare flights from San Antonio to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

Thu 10/30

7:35 pm-4:00 pm

3 stops42h 25m

Buenos Aires Jorge Newbery

Thu 11/6

2:30 pm-10:27 pm

3 stops34h 57m

$910

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Thu 10/30

7:35 pm-5:55 am

3 stops32h 20m

Buenos Aires Ministro Pistarini

Thu 11/6

7:35 am-2:07 pm

3 stops33h 32m

$961

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Thu 11/13

6:30 am-9:00 am

1 stop23h 30m

Buenos Aires Ministro Pistarini

Thu 11/20

8:55 pm-12:10 pm

1 stop18h 15m

$975

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Fri 1/16

10:45 am-9:00 am

1 stop19h 15m

Buenos Aires Ministro Pistarini

Thu 2/5

11:55 pm-11:30 am

1 stop14h 35m

$1,015

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

Fri 1/16

1:15 pm-4:00 pm

2 stops23h 45m

Buenos Aires Jorge Newbery

Thu 2/5

5:15 pm-10:00 am

2 stops19h 45m

$1,015

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Thu 11/13

4:30 pm-7:20 am

2 stops35h 50m

Buenos Aires Ministro Pistarini

Thu 11/20

11:55 pm-7:37 pm

1 stop22h 42m

$1,020

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Wed 2/11

5:30 am-9:35 am

2 stops25h 05m

Buenos Aires Ministro Pistarini

Sat 2/28

11:00 am-5:22 pm

2 stops33h 22m

$1,039

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Thu 10/30

11:40 am-8:20 am

1 stop18h 40m

Buenos Aires Ministro Pistarini

Thu 11/6

10:05 pm-5:47 pm

1 stop22h 42m

$1,050

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Wed 2/11

12:29 pm-8:20 am

1 stop16h 51m

Buenos Aires Ministro Pistarini

Sat 2/28

10:10 am-11:52 pm

1 stop16h 42m

$1,132

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

Thu 12/4

12:55 pm-8:00 am

1 stop16h 05m

Buenos Aires Ministro Pistarini

Sat 12/20

10:50 pm-11:26 pm

1 stop27h 36m

$1,194

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from San Antonio to Buenos Aires

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 month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from San Antonio is in July. Flight prices, which tend to average around $1,018, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of July, then book flights to Buenos Aires from San Antonio during November instead. Flights to Buenos Aires in November, while not as cheap as those in July, still average around $1,088.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from San Antonio is on a Monday. momondo users have found tickets for Monday departures for as low as $1,128. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Friday is $1,373.

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

Our most recent data shows that the best time of day to fly to Buenos Aires is at noon. Flights from San Antonio to Buenos Aires during this time can be as low as $1,163. Try not to purchase tickets in the afternoon because they tend to be around $1,203. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from San Antonio to Buenos Aires

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

Cheap San Antonio to Buenos Aires (SAT to BUE) flight deals and tips

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

Direct flights

None
There are no direct flights from San Antonio to Buenos Aires. There are no popular flight routes from San Antonio to Buenos Aires.
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  • How far is San Antonio to Buenos Aires by plane?

    A flight from San Antonio to Buenos Aires will travel around 5136.1 mi. 13h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Antonio Airport to Buenos Aires?

    Prices for flights from San Antonio Airport to Buenos Aires refresh daily.

  • How many operators does momondo search for flights from San Antonio Airport to Buenos Aires?

  • How old do you have to be to fly from San Antonio Airport to Buenos Aires?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The travel and health documents you'll need for your trip to Buenos Aires 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 Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Antonio to Buenos Aires?

Best airlines flying from San Antonio to Buenos Aires

Compare and see reviews for airlines that fly from San Antonio to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $975Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Buenos Aires?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Antonio to Buenos Aires. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Buenos Aires from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Antonio to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of San Antonio to Buenos Aires 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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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport