HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$161+ Cheap flights from Puerto Rico 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUE
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Puerto Rico to Buenos Aires with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Puerto Rico to Buenos Aires

Cheapest flights from Puerto Rico to Buenos Aires
Explore the most affordable flight options available from Puerto Rico to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 30, 2026.

This Booking.com deal was found by Cheapflights users on 5/25. 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 8/114:30 pm
SJU
-
EZE
1 stop10h 15m
Arajet
Sat 8/229:15 pm
EZE
-
SJU
1 stop18h 15m
Arajet
Deal found 5/25$570
This Copa Airlines deal was found by Cheapflights users on 5/27. 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.
Thu 6/45:34 am
SJU
-
EZE
1 stop21h 56m
Copa Airlines
Mon 6/152:17 am
EZE
-
SJU
1 stop11h 30m
Copa Airlines
Deal found 5/27$599
This Copa Airlines deal was found by Cheapflights users on 5/28. 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 8/116:17 pm
SJU
-
EZE
1 stop29h 34m
Copa Airlines
Tue 8/185:25 am
EZE
-
SJU
1 stop11h 49m
Copa Airlines
Deal found 5/28$600
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Tue 8/114:30 pm
SJU
-
EZE
1 stop10h 15m
Multiple Airlines
Sat 8/225:00 am
EZE
-
SJU
2 stops37h 10m
Multiple Airlines
Deal found 5/25$601
This Booking.com deal was found by Cheapflights users on 5/27. 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.
Wed 12/24:28 pm
SJU
-
EZE
1 stop12h 42m
Arajet
Tue 12/84:45 am
EZE
-
SJU
1 stop11h 13m
Arajet
Deal found 5/27$614
This Copa Airlines deal was found by Cheapflights users on 5/27. 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.
Fri 8/145:34 am
SJU
-
EZE
1 stop18h 17m
Copa Airlines
Sun 8/232:49 pm
EZE
-
SJU
1 stop26h 25m
Copa Airlines
Deal found 5/27$619
This Booking.com deal was found by Cheapflights users on 5/26. 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 8/254:30 pm
SJU
-
EZE
1 stop10h 15m
Arajet
Wed 9/234:45 am
EZE
-
SJU
1 stop10h 49m
Arajet
Deal found 5/26$622
This Mytrip deal was found by Cheapflights users on 5/25. 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.
Tue 8/114:30 pm
SJU
-
EZE
1 stop10h 15m
Multiple Airlines
Tue 8/187:05 am
EZE
-
SJU
3 stops32h 29m
Multiple Airlines
Deal found 5/25$623
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 8/145:50 pm
SJU
-
EZE
1 stop12h 40m
Arajet
Mon 9/149:15 pm
EZE
-
SJU
1 stop18h 45m
Arajet
Deal found 5/28$624
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 8/145:50 pm
SJU
-
EZE
1 stop12h 40m
Multiple Airlines
Tue 9/155:00 am
EZE
-
SJU
2 stops33h 50m
Multiple Airlines
Deal found 5/28$626
This Arajet deal was found by Cheapflights users on 5/27. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:30 pm
SJU
-
EZE
1 stop10h 15m
Arajet
Mon 9/282:45 am
EZE
-
SJU
1 stop13h 15m
Arajet
Deal found 5/27$630
This Avianca deal was found by Cheapflights users on 5/26. 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 6/231:05 pm
SJU
-
AEP
1 stop15h 35m
Avianca
Tue 6/307:00 am
AEP
-
SJU
1 stop11h 10m
Avianca
Deal found 5/26$676

Find flight deals from Puerto Rico to Buenos Aires

Keep the following information in mind while searching for Puerto Rico to Buenos Aires flight deals. Data was last updated May 30, 2026.

Round-trip from

$570
(Booking.com)

One-way from

$161
(Kiwi.com)

Popular in

February

Cheapest in

May

Average price

$588
From Puerto Rico to Buenos Aires (BUE)
Search Deals
One-way flight from Puerto Rico to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Puerto Rico 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 May 30, 2026.
Use the filters below to find and compare flights from Puerto Rico to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 9/1

4:30 pm-3:45 am

1 stop10h 15m

Buenos Aires Ministro Pistarini

Wed 9/16

4:00 am-2:34 pm

1 stop11h 34m

$630

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Wed 11/4

4:28 pm-10:00 am

1 stop16h 32m

Buenos Aires Ministro Pistarini

Tue 11/17

4:45 am-2:58 pm

1 stop11h 13m

$650

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 9/22

4:30 pm-3:45 am

1 stop10h 15m

Buenos Aires Ministro Pistarini

Mon 9/28

2:45 am-3:00 pm

1 stop13h 15m

$655

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 10/13

4:30 pm-3:45 am

1 stop10h 15m

Buenos Aires Ministro Pistarini

Thu 10/22

11:00 am-4:20 pm

1 stop30h 20m

$669

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Sat 7/4

2:41 pm-9:45 am

1 stop18h 04m

Buenos Aires Ministro Pistarini

Sat 7/11

8:10 pm-4:39 pm

1 stop21h 29m

$673

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Sat 10/3

9:00 pm-3:45 am

1 stop29h 45m

Buenos Aires Ministro Pistarini

Sat 10/10

6:35 am-4:39 pm

1 stop11h 04m

$685

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Tue 9/1

4:30 pm-3:45 am

1 stop10h 15m

Buenos Aires Ministro Pistarini

Sat 9/5

9:15 pm-2:30 pm

1 stop18h 15m

$693

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 6/26

1:10 pm-9:45 am

2 stops19h 35m

Buenos Aires Ministro Pistarini

Sun 7/5

8:10 pm-11:44 am

1 stop16h 34m

$731

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Fri 6/26

1:10 pm-9:45 am

2 stops19h 35m

Buenos Aires Ministro Pistarini

Sat 7/4

10:40 pm-8:43 pm

2 stops23h 03m

$731

San JuanBuenos Aires

SJU - EZE

SJUEZE

San Juan Luis Munoz Marin Intl

Thu 8/27

12:56 pm-9:40 am

2 stops19h 44m

Buenos Aires Ministro Pistarini

Wed 9/2

8:10 pm-4:33 pm

2 stops21h 23m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/30

Showing 1-10 of 35 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Puerto Rico to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Puerto Rico 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 Puerto Rico to Buenos Aires

What is the cheapest month to book a flight from Puerto Rico to Buenos Aires?

Currently, November is the cheapest month in which you can book a flight from Puerto Rico to Buenos Aires (average of $206). Flying from Puerto Rico to Buenos Aires in May is currently the most expensive (average of $457). 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.

How far ahead should I book a flight from Puerto Rico to Buenos Aires?

The best time to book flights from Puerto Rico to Buenos Aires is 4 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 May 30, 2026.
Peruse reviews from past customers who have flown with Copa Airlines and Avianca from Puerto Rico 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
7.5
Good
1,574 reviews

Overall

7.5

Comfort

7.4

Crew

8.1

Food

6.9

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
Copa Airlines
7.5
Good
1,574 reviews
Copa Airlines
7.5
Good
1,574 reviews

Overall

7.5

Comfort

7.4

Crew

8.1

Food

6.9

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
Avianca
6.5
Okay
2,527 reviews
Copa Airlines
7.5
Good
1,574 reviews

Overall

7.5

Comfort

7.4

Crew

8.1

Food

6.9

Boarding

7.8

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico 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 Puerto Rico to Buenos Aires?

    For as low as $630, Arajet can have you in Buenos Aires from Puerto Rico in 10h 15m. The distance between Puerto Rico and Buenos Aires is about 3710 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Puerto Rico to Buenos Aires one-way?

    The cheapest airlines for a one-way flight from Puerto Rico to Buenos Aires are Avianca ($262), Arajet ($289), and Copa Airlines ($299).

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

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

  • How can I find direct flights from Puerto Rico to Buenos Aires?

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

  • Can I find deals for business class flights from Puerto Rico to Buenos Aires?

    Yes. Cheapflights offers flight deals from Puerto Rico 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 Puerto Rico to Buenos Aires?

    Currently, November is the cheapest month in which you can book a flight from Puerto Rico to Buenos Aires (average of $206). Flying from Puerto Rico to Buenos Aires in May is currently the most expensive (average of $457). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Puerto Rico 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
Punta Cana to Ministro Pistarini flights

Top 4 airlines flying from Puerto Rico to Buenos Aires

Discover the top 4 airlines that operate flights from Puerto Rico 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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapest$293Average$649FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$543Average$803FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$599Average$806FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$602Average$953FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.