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$296+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUE
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Buenos Aires are usually found in September or August, booked 77 days in advance, depart on a Sunday or Monday and return on a Saturday

Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:22 pmSJU - EZE
2 stops14h 18mMultiple Airlines
Tue 1/135:35 amEZE - SJU
1 stop33h 15mMultiple Airlines
Deal found 12/17$764
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/173:46 pmSJU - EZE
1 stop16h 34mUnited Airlines
Wed 12/2411:55 pmEZE - SJU
1 stop17h 41mUnited Airlines
Deal found 12/16$787
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:30 pmSJU - EZE
2 stops18h 25mMultiple Airlines
Sat 1/315:35 amEZE - SJU
1 stop12h 04mMultiple Airlines
Deal found 12/17$818
This Avianca deal was found by Cheapflights users on 12/16. 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.
Tue 12/301:00 pmSJU - EZE
1 stop15h 50mAvianca
Sat 1/317:30 amEZE - SJU
1 stop10h 35mAvianca
Deal found 12/16$829
This LATAM Airlines deal was found by Cheapflights users on 12/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:30 pmSJU - EZE
1 stop16h 30mDelta
Fri 12/2611:55 pmEZE - SJU
1 stop18h 34mDelta
Deal found 12/16$837
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:46 pmSJU - EZE
1 stop38h 34mUnited Airlines
Thu 1/2210:05 pmEZE - SJU
2 stops25h 17mUnited Airlines
Deal found 12/16$838
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:21 pmSJU - EZE
1 stop26h 54mMultiple Airlines
Tue 1/135:35 amEZE - SJU
1 stop33h 15mMultiple Airlines
Deal found 12/17$843
This Copa Airlines deal was found by Cheapflights users on 12/17. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:27 amSJU - EZE
1 stop21h 49mCopa Airlines
Thu 1/229:16 amEZE - SJU
1 stop14h 12mCopa Airlines
Deal found 12/17$847
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:53 pmSJU - EZE
1 stop19h 42mMultiple Airlines
Tue 1/135:35 amEZE - SJU
1 stop33h 15mMultiple Airlines
Deal found 12/17$854
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:46 pmSJU - EZE
1 stop16h 34mUnited Airlines
Wed 1/710:05 pmEZE - SJU
1 stop24h 21mUnited Airlines
Deal found 12/16$872
This Avianca deal was found by Cheapflights users on 12/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:45 pmSJU - AEP
2 stops35h 55mAvianca
Thu 1/157:00 amAEP - SJU
1 stop11h 05mAvianca
Deal found 12/17$1,302
This Avianca deal was found by Cheapflights users on 12/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:00 pmSJU - AEP
1 stop15h 40mAvianca
Wed 1/147:00 amAEP - SJU
1 stop29h 35mAvianca
Deal found 12/17$1,317

Find 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 December 18, 2025.

Round-trip from

$583
(Orbitz)

One-way from

$296
(Avianca)

Popular in

February

Cheapest in

September

Average price

$780
From San Juan to Buenos Aires (BUE)
Search Deals
One-way flight from San Juan to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 18, 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

Tue 3/10

1:00 pm-12:35 am

1 stop10h 35m

Buenos Aires Ministro Pistarini

Tue 3/24

7:30 am-5:05 pm

1 stop10h 35m

$674

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Mon 6/15

5:34 am-2:30 am

1 stop19h 56m

Buenos Aires Ministro Pistarini

Mon 6/29

3:48 am-4:14 pm

1 stop13h 26m

$676

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Mon 5/18

5:27 am-10:25 pm

1 stop15h 58m

Buenos Aires Ministro Pistarini

Wed 5/27

5:25 am-4:09 pm

1 stop11h 44m

$676

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-7:20 am

2 stops28h 15m

Buenos Aires Ministro Pistarini

Tue 2/10

10:05 pm-9:00 pm

2 stops23h 55m

$677

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 4/24

1:50 pm-9:45 am

2 stops18h 55m

Buenos Aires Ministro Pistarini

Mon 5/11

8:10 pm-4:23 pm

2 stops21h 13m

$693

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 1/22

8:10 am-9:20 am

2 stops24h 10m

Buenos Aires Ministro Pistarini

Thu 1/29

11:55 pm-12:36 am

2 stops25h 41m

$693

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Mon 5/4

5:27 am-12:50 am

1 stop18h 23m

Buenos Aires Ministro Pistarini

Fri 5/8

3:48 am-10:24 pm

1 stop19h 36m

$696

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 3/24

7:00 am-5:05 pm

1 stop11h 05m

$704

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

$704

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 5/22

5:27 am-4:20 am

1 stop21h 53m

Buenos Aires Ministro Pistarini

Fri 5/29

3:48 am-4:09 pm

1 stop13h 21m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 38 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 December 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 77 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, June is the cheapest month in which you can book a flight from San Juan to Buenos Aires (average of $253). Flying from San Juan to Buenos Aires in February is currently the most expensive (average of $686). 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 December 18, 2025.

It’s optimal to fly from San Juan to Buenos Aires at noon. By choosing this option you can save up to 47% 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 December 18, 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
1,556 reviews

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,556 reviews
Copa Airlines
7.6
Good
1,556 reviews

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Avianca
6.6
Okay
2,490 reviews
Copa Airlines
7.6
Good
1,556 reviews

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

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 10h 35m. 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 $543, 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 23% 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?

    $241 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on Copa Airlines and Arajet, with prices starting from $289 and $304, 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, June is the cheapest month in which you can book a flight from San Juan to Buenos Aires (average of $253). Flying from San Juan to Buenos Aires in February is currently the most expensive (average of $686). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$547Average$709FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$602Average$874FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$636Average$926FlexibilityNo cancel feeOn-time70%

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