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$439+ Cheap flights from San Antonio (SAT) to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BUE
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from San Antonio to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 15, 2025.

Round-trip from

$910
(Mytrip)

One-way from

$439
(Avianca Connect)

Popular in

December

Cheapest in

July

Average price

$1,282
From San Antonio to Buenos Aires (BUE)
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One-way flight from San Antonio to Buenos Aires (BUE)
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Highest demand for flights based on searches. 8% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Antonio to Buenos Aires

Cheapest flights from San Antonio to Buenos Aires
Explore the most affordable flight options available from San Antonio to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:35 pmSAT - AEP
3 stops42h 25mMultiple Airlines
jue. 11/62:30 pmAEP - SAT
3 stops34h 57mMultiple Airlines
Deal found 9/15$910
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:00 amSAT - AEP
3 stops31h 00mMultiple Airlines
sáb. 11/153:15 amAEP - SAT
3 stops46h 12mMultiple Airlines
Deal found 9/14$936
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:00 amSAT - EZE
3 stops21h 20mMultiple Airlines
sáb. 11/152:30 amEZE - SAT
3 stops46h 57mMultiple Airlines
Deal found 9/14$959
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:35 pmSAT - EZE
3 stops32h 20mMultiple Airlines
jue. 11/67:35 amEZE - SAT
3 stops33h 32mMultiple Airlines
Deal found 9/15$961
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1012:10 pmSAT - EZE
1 stop19h 05mDelta
dom. 11/164:05 amEZE - SAT
2 stops23h 28mDelta
Deal found 9/14$975
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/134:30 pmSAT - EZE
2 stops35h 50mUnited Airlines
jue. 11/2011:55 pmEZE - SAT
1 stop22h 42mUnited Airlines
Deal found 9/15$1,020
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3011:40 amSAT - EZE
1 stop18h 40mUnited Airlines
jue. 11/610:05 pmEZE - SAT
1 stop22h 42mUnited Airlines
Deal found 9/15$1,050
This Travelocity deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:00 amSAT - AEP
2 stops20h 55mLATAM Airlines
dom. 11/168:25 pmAEP - SAT
2 stops29h 51mLATAM Airlines
Deal found 9/14$1,085
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/104:24 pmSAT - EZE
1 stop11h 56mUnited Airlines
dom. 11/1610:05 pmEZE - SAT
1 stop15h 38mUnited Airlines
Deal found 9/14$1,095
This LATAM Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/163:00 pmSAT - AEP
2 stops24h 40mLATAM Airlines
mié. 12/245:15 pmAEP - SAT
2 stops22h 15mLATAM Airlines
Deal found 9/14$1,125
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/36:11 pmSAT - AEP
2 stops19h 54mLATAM Airlines
lun. 10/132:55 pmAEP - SAT
2 stops22h 33mLATAM Airlines
Deal found 9/15$1,440
This KAYAK deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/227:03 amSAT - AEP
2 stops33h 37mLATAM Airlines
jue. 1/13:40 pmAEP - SAT
2 stops21h 31mLATAM Airlines
Deal found 9/15$1,581

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 15, 2025.
Use the filters below to find and compare flights from San Antonio to Buenos Aires that are best for you.

Fly from

San Antonio

Fly to

Buenos Aires

Route

Depart

Return

Price

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

jue. 10/30

7:35 pm-4:00 pm

3 stops42h 25m

Buenos Aires Jorge Newbery

jue. 11/6

2:30 pm-10:27 pm

3 stops34h 57m

$910

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

lun. 11/10

6:00 am-4:00 pm

3 stops31h 00m

Buenos Aires Jorge Newbery

sáb. 11/15

3:15 am-10:27 pm

3 stops46h 12m

$936

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

mié. 3/4

1:15 pm-6:40 pm

2 stops26h 25m

Buenos Aires Jorge Newbery

jue. 3/19

5:15 pm-1:26 pm

2 stops22h 11m

$975

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

jue. 11/13

6:30 am-9:00 am

1 stop23h 30m

Buenos Aires Ministro Pistarini

jue. 11/20

8:55 pm-12:10 pm

1 stop18h 15m

$975

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

jue. 11/13

4:30 pm-7:20 am

2 stops35h 50m

Buenos Aires Ministro Pistarini

jue. 11/20

11:55 pm-7:37 pm

1 stop22h 42m

$1,020

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

jue. 12/4

2:46 pm-9:35 am

2 stops15h 49m

Buenos Aires Ministro Pistarini

sáb. 12/20

11:00 am-12:37 am

2 stops16h 37m

$1,020

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

mar. 12/16

5:15 am-9:35 am

2 stops25h 20m

Buenos Aires Ministro Pistarini

mar. 12/23

4:05 am-11:06 pm

2 stops22h 01m

$1,101

San AntonioBuenos Aires

SAT - AEP

SATAEP

San Antonio

mar. 12/16

3:00 pm-6:40 pm

2 stops24h 40m

Buenos Aires Jorge Newbery

mié. 12/24

5:15 pm-12:30 pm

2 stops22h 15m

$1,125

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

vie. 11/21

6:04 pm-7:20 am

1 stop34h 16m

Buenos Aires Ministro Pistarini

dom. 11/30

11:55 pm-7:37 pm

1 stop22h 42m

$1,137

San AntonioBuenos Aires

SAT - EZE

SATEZE

San Antonio

mar. 12/16

8:00 am-9:35 am

2 stops22h 35m

Buenos Aires Ministro Pistarini

sáb. 12/27

8:00 am-12:37 am

2 stops19h 37m

$1,141

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 29 results
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Best time to book a flight from San Antonio to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from San Antonio with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Buenos Aires

What is the cheapest month to book a flight from San Antonio to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from San Antonio to Buenos Aires (average of $795). Flying from San Antonio to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from San Antonio to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 15, 2025.

It’s optimal to fly from San Antonio to Buenos Aires at noon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated septiembre 15, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from San Antonio to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Antonio to Buenos Aires?

    If you book a flight to Buenos Aires from San Antonio, you will be flying from San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 0 flights from San Antonio to Buenos Aires per day from 1 airline.

  • How long is the flight from San Antonio to Buenos Aires?

    Departing from San Antonio to Buenos Aires will take you 16h 55m. Airlines will cover a distance of 5148 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from San Antonio to Buenos Aires round-trip?

    According to our current data, United Airlines ($975), offers the cheapest pricing from San Antonio to Buenos Aires. This flight start at 24% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Antonio to Buenos Aires one-way?

    To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at $718. United Airlines flights start at $718 while deals on Delta start at $718 one-way.

  • Can I find deals for flights from San Antonio to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on San Antonio to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Buenos Aires?

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

  • Can I find deals for business class flights from San Antonio to Buenos Aires?

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

  • What is the cheapest month to book a flight from San Antonio to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from San Antonio to Buenos Aires (average of $795). Flying from San Antonio to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for San Antonio to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Antonio to Buenos Aires

Discover the top airline that operate flights from San Antonio to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$975Average$1,305FlexibilityNo cancel feeOn-time69%

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