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$259+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUE
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$593
(Priceline)

One-way from

$259
(Avianca)

Popular in

February

Cheapest in

August

Average price

$826
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. 11% potential increase in price ($91 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 July 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 July 31, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. 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.
Fri 11/218:20 amSJU - EZE
1 stop10h 55mMultiple Airlines
Fri 11/287:35 amEZE - SJU
1 stop10h 30mMultiple Airlines
Deal found 7/29$591
This Priceline deal was found by Cheapflights users on 7/30. 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.
Thu 8/211:15 pmSJU - EZE
1 stop9h 55mAvianca
Sun 8/241:40 amEZE - SJU
1 stop16h 10mAvianca
Deal found 7/30$593
This Avianca deal was found by Cheapflights users on 7/30. 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.
Thu 10/231:15 pmSJU - AEP
1 stop15h 25mAvianca
Mon 10/277:00 amAEP - SJU
1 stop11h 05mAvianca
Deal found 7/30$594
This Copa Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 8/205:32 amSJU - EZE
1 stop18h 12mCopa Airlines
Sat 8/233:48 amEZE - SJU
1 stop19h 31mCopa Airlines
Deal found 7/31$596
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 8/217:00 amSJU - EZE
1 stop24h 00mUnited Airlines
Mon 8/259:00 pmEZE - SJU
2 stops27h 57mUnited Airlines
Deal found 7/31$599
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 9/57:05 pmSJU - EZE
1 stop12h 50mAmerican Airlines
Tue 9/168:40 pmEZE - SJU
1 stop22h 34mAmerican Airlines
Deal found 7/30$608
This Mytrip deal was found by Cheapflights users on 7/31. 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.
Sat 10/186:15 pmSJU - AEP
1 stop10h 25mMultiple Airlines
Sun 10/269:50 amAEP - SJU
2 stops32h 15mMultiple Airlines
Deal found 7/31$731

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 July 31, 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 - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 11/21

8:20 am-8:15 pm

1 stop10h 55m

Buenos Aires Ministro Pistarini

Fri 11/28

7:35 am-5:05 pm

1 stop10h 30m

$591

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 8/21

1:15 pm-12:10 am

1 stop9h 55m

Buenos Aires Ministro Pistarini

Sun 8/24

1:40 am-4:50 pm

1 stop16h 10m

$593

San JuanBuenos Aires

SJU - AEP

SJUAEP

San Juan Luis Munoz Marin Intl

Thu 10/23

1:15 pm-5:40 am

1 stop15h 25m

Buenos Aires Jorge Newbery

Mon 10/27

7:00 am-5:05 pm

1 stop11h 05m

$594

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 8/20

5:32 am-12:44 am

1 stop18h 12m

Buenos Aires Ministro Pistarini

Sat 8/23

3:48 am-10:19 pm

1 stop19h 31m

$596

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 8/21

7:00 am-8:00 am

1 stop24h 00m

Buenos Aires Ministro Pistarini

Mon 8/25

9:00 pm-11:57 pm

2 stops27h 57m

$599

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 9/5

7:05 pm-8:55 am

1 stop12h 50m

Buenos Aires Ministro Pistarini

Tue 9/16

8:40 pm-6:14 pm

1 stop22h 34m

$608

San JuanBuenos Aires

SJU - AEP

SJUAEP

San Juan Luis Munoz Marin Intl

Sat 10/18

6:15 pm-5:40 am

1 stop10h 25m

Buenos Aires Jorge Newbery

Sun 10/26

9:50 am-5:05 pm

2 stops32h 15m

$731

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 8/26

1:15 pm-12:10 am

1 stop9h 55m

$259

San JuanBuenos Aires

SJU - AEP

SJUAEP

San Juan Luis Munoz Marin Intl

Tue 9/9

6:15 pm-5:40 am

1 stop10h 25m

$259

San JuanBuenos Aires

SJU - AEP

SJUAEP

San Juan Luis Munoz Marin Intl

Tue 8/26

9:55 am-6:40 am

2 stops43h 45m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 17 results
1
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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 July 25, 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 July 31, 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.

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 July 31, 2025.
Peruse reviews from past customers who have flown with Delta, Copa Airlines, and United Airlines 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.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure
Air Canada
7.1
Good
9,851 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Jake,Jan 2024

CVG - ATL

Would have been great but the flight got significantly delayed after we boarded due to a mechanical failure

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.

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

    Avianca, at $593, was found to be the cheapest airline from San Juan to Buenos Aires.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 17% 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 United Airlines and Arajet, with prices starting from $303 and $319, 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$558Average$748FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$566Average$920FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$588Average$1,061FlexibilityNo cancel feeOn-time71%

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