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$247+ Cheap flights from San Juan 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUE
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Buenos Aires are usually found in August or September, booked 2 days in advance, depart on a Sunday or Monday and return on a Saturday

Cheap flight deals from San Juan to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 September 17, 2025.

Round-trip from

$550
(Priceline)

One-way from

$247
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$588
From San Juan to Buenos Aires (BUE)
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One-way flight from San Juan to Buenos Aires (BUE)
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Highest demand for flights based on searches. 12% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 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 Juan to Buenos Aires

Cheapest flights from San Juan to Buenos Aires
Explore the most affordable flight options available from San Juan to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/102:00 pmSJU - EZE
2 stops14h 10mAvianca
Mon 11/177:35 amEZE - SJU
1 stop10h 30mAvianca
Deal found 9/17$550
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:55 amSJU - EZE
1 stop16h 50mMultiple Airlines
Tue 9/301:40 amEZE - SJU
1 stop16h 10mMultiple Airlines
Deal found 9/16$554
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:00 pmSJU - EZE
1 stop10h 35mAvianca
Tue 12/22:40 amEZE - SJU
1 stop13h 40mAvianca
Deal found 9/16$563
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/202:00 pmSJU - EZE
2 stops13h 50mAvianca
Tue 12/27:35 amEZE - SJU
1 stop10h 30mAvianca
Deal found 9/16$571
This Avianca deal was found by Cheapflights users on 9/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:15 pmSJU - EZE
1 stop10h 30mAvianca
Thu 10/307:35 amEZE - SJU
1 stop10h 30mAvianca
Deal found 9/16$588
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Thu 11/201:00 pmSJU - AEP
1 stop15h 40mAvianca
Thu 11/277:00 amAEP - SJU
1 stop11h 05mAvianca
Deal found 9/16$588
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:31 amSJU - EZE
1 stop18h 24mCopa Airlines
Mon 10/133:47 amEZE - SJU
1 stop19h 34mCopa Airlines
Deal found 9/15$590
This Avianca 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:00 pmSJU - AEP
1 stop15h 40mAvianca
Wed 11/127:00 amAEP - SJU
1 stop11h 05mAvianca
Deal found 9/15$594
This Avianca deal was found by Cheapflights users on 9/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:10 pmSJU - EZE
2 stops14h 25mAvianca
Sat 11/17:35 amEZE - SJU
1 stop10h 30mAvianca
Deal found 9/16$596
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:56 amSJU - EZE
1 stop18h 54mAmerican Airlines
Mon 11/311:20 pmEZE - SJU
1 stop15h 23mAmerican Airlines
Deal found 9/16$602
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:00 pmSJU - EZE
1 stop10h 35mMultiple Airlines
Mon 12/89:15 pmEZE - SJU
1 stop12h 10mMultiple Airlines
Deal found 9/16$604
This Avianca deal was found by Cheapflights users on 9/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:15 pmSJU - AEP
1 stop10h 25mAvianca
Tue 10/287:00 amAEP - SJU
1 stop11h 05mAvianca
Deal found 9/16$606

Cheapflights Fare Finder

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

Fly from

San Juan

Fly to

Buenos Aires

Route

Depart

Return

Price

San JuanBuenos Aires

SJU - AEP

SJUAEP

San Juan Luis Munoz Marin Intl

Tue 3/10

1:00 pm-5:40 am

1 stop15h 40m

Buenos Aires Jorge Newbery

Tue 3/31

7:00 am-4:50 pm

1 stop10h 50m

$594

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 10/30

3:11 pm-4:19 am

1 stop12h 08m

Buenos Aires Ministro Pistarini

Mon 11/3

10:01 am-10:29 pm

1 stop13h 28m

$610

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 10/30

3:11 pm-4:19 am

1 stop12h 08m

Buenos Aires Ministro Pistarini

Thu 11/6

5:16 am-10:29 pm

1 stop18h 13m

$610

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 9/30

5:31 am-4:13 am

1 stop21h 42m

Buenos Aires Ministro Pistarini

Wed 10/1

3:47 am-10:21 pm

1 stop19h 34m

$638

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 11/18

5:27 am-1:00 am

1 stop18h 33m

Buenos Aires Ministro Pistarini

Tue 12/2

5:16 am-10:25 pm

1 stop18h 09m

$666

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 11/19

5:27 am-10:31 pm

1 stop16h 04m

Buenos Aires Ministro Pistarini

Sun 11/30

3:41 am-4:11 pm

1 stop13h 30m

$676

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 11/26

5:50 pm-7:20 am

2 stops36h 30m

Buenos Aires Ministro Pistarini

Mon 12/8

10:05 pm-9:00 pm

2 stops23h 55m

$683

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 10/29

4:50 pm-6:20 am

2 stops36h 30m

Buenos Aires Ministro Pistarini

Sun 11/9

11:55 pm-4:36 pm

1 stop17h 41m

$683

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 11/26

5:50 pm-7:20 am

2 stops36h 30m

Buenos Aires Ministro Pistarini

Sat 12/6

10:05 pm-4:36 pm

1 stop19h 31m

$683

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 10/29

1:05 am-6:20 am

2 stops28h 15m

Buenos Aires Ministro Pistarini

Mon 11/3

10:05 pm-9:00 pm

2 stops23h 55m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 33 results
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Best time to book a flight from San Juan to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from San Juan 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 Juan to Buenos Aires

How far ahead should I book a flight from San Juan to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Buenos Aires. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from San Juan to Buenos Aires, you should look to book at least 2 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from San Juan to Buenos Aires (average of $795). Flying from San Juan 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 SJU to BUE?

Find hourly flight availability from San Juan 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 September 17, 2025.

It’s optimal to fly from San Juan to Buenos Aires at noon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from San Juan to Buenos Aires?

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 September 17, 2025.
Peruse reviews from past customers who have flown with Copa Airlines and Avianca from San Juan 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.
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.4

Crew

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Copa Airlines
7.6
Good
1,533 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.4

Crew

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Avianca
6.7
Okay
2,436 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Overall

7.6

Comfort

7.4

Crew

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

Related info for your journey

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

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

    Departing from San Juan to Buenos Aires will take you 12h 08m. Airlines will cover a distance of 3710 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Juan to Buenos Aires round-trip?

    Avianca, at $563, was found to be the cheapest airline from San Juan to Buenos Aires.Alternate airlines to your destination round-trip include Copa Airlines and American Airlines. These flights start at 21% lower than the current average price 3 months from now.

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

    $259 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on Arajet and Delta, with prices starting from $276 and $299, respectively.

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

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

  • How can I find direct flights from San Juan 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 Juan to Buenos Aires.

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

    Yes. Cheapflights offers flight deals from San Juan 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 Juan to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from San Juan to Buenos Aires (average of $795). Flying from San Juan 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Juan to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Ministro Pistarini flights

Top 3 airlines flying from San Juan to Buenos Aires

Discover the top 3 airlines that operate flights from San Juan 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$563Average$734FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$566Average$902FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$578Average$904FlexibilityNo cancel feeOn-time71%

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