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Buenos Aires

$650+ Cheap flights from San Jose (SJC) 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BUE
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from San Jose to Buenos Aires

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

Round-trip from

$1,107
(eDestinos)

One-way from

$650
(SmartFares)

Popular in

June

Cheapest in

November

Average price

$1,277
From San Jose to Buenos Aires (BUE)
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One-way flight from San Jose to Buenos Aires (BUE)
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Highest demand for flights based on searches. 5% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($23 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 Jose to Buenos Aires

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

This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3010:48 amSJC - EZE
3 stops39h 07mMultiple Airlines
jue. 11/135:16 amEZE - SJC
2 stops22h 40mMultiple Airlines
Deal found 9/17$1,107
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/85:55 pmSJC - EZE
3 stops55h 00mMultiple Airlines
vie. 11/212:15 amEZE - SJC
2 stops25h 44mMultiple Airlines
Deal found 9/16$1,122
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.
lun. 12/87:00 amSJC - EZE
2 stops18h 20mLATAM Airlines
vie. 12/127:10 amEZE - SJC
2 stops33h 24mLATAM Airlines
Deal found 9/15$1,355
This LATAM 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/77:00 amSJC - AEP
3 stops23h 40mLATAM Airlines
jue. 12/116:20 pmAEP - SJC
2 stops22h 14mLATAM Airlines
Deal found 9/16$1,355
This LATAM 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/63:22 pmSJC - EZE
2 stops31h 08mLATAM Airlines
lun. 10/136:15 amEZE - SJC
2 stops20h 43mLATAM Airlines
Deal found 9/16$1,375
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/308:45 amSJC - EZE
2 stops19h 35mUnited Airlines
jue. 11/1311:55 pmEZE - SJC
2 stops22h 43mUnited Airlines
Deal found 9/16$1,376
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2912:39 pmSJC - EZE
1 stop15h 21mDelta
mar. 12/98:55 pmEZE - SJC
1 stop19h 39mDelta
Deal found 9/16$1,385
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.
sáb. 11/811:00 amSJC - AEP
2 stops18h 30mLATAM Airlines
sáb. 11/225:15 pmAEP - SJC
2 stops25h 04mLATAM Airlines
Deal found 9/15$1,385
This LATAM 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/317:00 amSJC - AEP
2 stops20h 55mLATAM Airlines
vie. 11/75:15 pmAEP - SJC
2 stops24h 35mLATAM Airlines
Deal found 9/16$1,388
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/23:43 pmSJC - EZE
2 stops30h 07mLATAM Airlines
sáb. 12/2011:00 amEZE - SJC
2 stops29h 16mLATAM Airlines
Deal found 9/16$1,390
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:15 amSJC - EZE
3 stops51h 25mMultiple Airlines
vie. 10/245:08 amEZE - SJC
2 stops21h 31mMultiple Airlines
Deal found 9/17$1,409
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1710:25 pmSJC - AEP
2 stops37h 40mLATAM Airlines
vie. 10/242:55 pmAEP - SJC
2 stops25h 55mLATAM Airlines
Deal found 9/17$1,425

Cheapflights Fare Finder

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

Fly from

San Jose

Fly to

Buenos Aires

Route

Depart

Return

Price

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

jue. 10/30

10:48 am-5:55 am

3 stops39h 07m

Buenos Aires Ministro Pistarini

jue. 11/13

5:16 am-10:56 pm

2 stops22h 40m

$1,107

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

lun. 12/8

7:00 am-6:20 am

2 stops18h 20m

Buenos Aires Ministro Pistarini

vie. 12/12

7:10 am-11:34 am

2 stops33h 24m

$1,355

San JoseBuenos Aires

SJC - AEP

SJCAEP

San Jose

dom. 12/7

7:00 am-7:55 am

2 stops19h 55m

Buenos Aires Jorge Newbery

jue. 12/11

6:20 pm-11:34 am

2 stops22h 14m

$1,355

San JoseBuenos Aires

SJC - AEP

SJCAEP

San Jose

lun. 12/8

7:00 am-9:40 am

2 stops21h 40m

Buenos Aires Jorge Newbery

jue. 12/11

5:15 pm-1:16 pm

2 stops25h 01m

$1,355

San JoseBuenos Aires

SJC - AEP

SJCAEP

San Jose

jue. 2/26

12:55 pm-5:00 pm

2 stops23h 05m

Buenos Aires Jorge Newbery

mié. 3/11

5:15 pm-12:09 pm

2 stops22h 54m

$1,358

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

jue. 2/26

5:45 am-10:15 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

mié. 3/11

8:55 pm-12:09 pm

1 stop19h 14m

$1,363

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

sáb. 11/8

1:30 pm-7:20 am

1 stop36h 50m

Buenos Aires Ministro Pistarini

sáb. 11/22

10:05 pm-12:18 pm

1 stop19h 13m

$1,376

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

jue. 10/30

1:16 pm-8:20 am

1 stop15h 04m

Buenos Aires Ministro Pistarini

jue. 11/13

10:05 pm-1:42 pm

2 stops20h 37m

$1,376

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

lun. 12/8

6:25 am-9:00 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

vie. 12/12

8:00 am-11:59 pm

2 stops20h 59m

$1,385

San JoseBuenos Aires

SJC - EZE

SJCEZE

San Jose

dom. 11/30

12:39 pm-9:00 am

1 stop15h 21m

Buenos Aires Ministro Pistarini

mié. 12/10

8:55 pm-11:34 am

1 stop19h 39m

$1,385

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 38 results
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Best time to book a flight from San Jose to Buenos Aires

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

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

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

Find hourly flight availability from San Jose 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 17, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 24% on flights from San Jose to Buenos Aires by exploring options for tickets in the evening.

How much does it cost to fly round-trip from San Jose 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 septiembre 17, 2025.
See what other customers who have flown with United Airlines and American Airlines from San Jose to Buenos Aires have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from San Jose 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 Jose to Buenos Aires?

    For a flight from San Jose to Buenos Aires, you will be flying from San Jose. San Jose (SJC) is just 2.9 mi from the center of the city. San Jose is the only San Jose airport and it handles 0 outbound flights to Buenos Aires per day. 3 airlines have flights to Buenos Aires from San Jose on a regular basis.

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

    Airlines like LATAM Airlines, Delta, and United Airlines fly from San Jose to Buenos Aires in about 18h 20m. The time it takes to get you to your destination can typically vary by up to 18h 30m. The distance between San Jose and Buenos Aires is about 6429 mi. This flight may include one or multiple stops.

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

    According to our current data, United Airlines ($1,089), Delta ($1,095), and American Airlines ($1,218) offers the cheapest pricing from San Jose to Buenos Aires. Users have found that United Airlines is 23% cheaper than the other options available to this destination.

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from San Jose to Buenos Aires (average of $795). Flying from San Jose 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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Top 3 airlines flying from San Jose to Buenos Aires

Discover the top 3 airlines that operate flights from San Jose 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,089Average$1,470FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,095Average$1,369FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,218Average$1,381FlexibilityNo cancel feeOn-time71%

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