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Cheap flights from San José to Buenos Aires from $281

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San José to Buenos Aires departing on 8/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San José to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
4:00 pm - 5:40 am
SJO
-
AEP
10h 40m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$579Avianca
Thu, Aug 13 - Mon, Aug 17
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:20 pm
AEP
-
SJO
11h 20m
1 stop
$586Avianca
Wed, Oct 21 - Wed, Oct 28
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$587Avianca
Thu, Sep 3 - Wed, Sep 23
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$589Avianca
Wed, Aug 19 - Mon, Aug 24
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:20 pm
AEP
-
SJO
11h 20m
1 stop
$590Avianca
Thu, Oct 22 - Fri, Oct 30
Avianca Logo
4:00 pm - 5:40 am
SJO
-
AEP
10h 40m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$591Avianca
Mon, Sep 14 - Sat, Sep 26
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:20 pm
AEP
-
SJO
11h 20m
1 stop
$592Avianca
Thu, Oct 22 - Thu, Oct 29
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$593Avianca
Tue, Aug 18 - Wed, Sep 30
LATAM Airlines Logo
4:55 pm - 8:30 am
SJO
-
AEP
12h 35m
1 stop
LATAM Airlines Logo
8:05 pm - 12:35 pm
AEP
-
SJO
19h 30m
1 stop
$594LATAM Airlines
Fri, Nov 13 - Sat, Nov 28
Avianca Logo
9:25 am - 5:40 am
SJO
-
AEP
17h 15m
1 stop
Avianca Logo
7:00 am - 3:25 pm
AEP
-
SJO
11h 25m
1 stop
$596Avianca
Wed, Oct 14 - Fri, Oct 23

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Avianca flights from San José to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on San José to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Aug 13
SJO4:00 pmSan José Juan Santamaria Intl
10h 40m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Aug 17
AEP7:00 amBuenos Aires Jorge Newbery
11h 25m
1 stop
SJO3:25 pmSan José Juan Santamaria Intl
$579
Avianca
Sep 3
SJO9:25 amSan José Juan Santamaria Intl
17h 15m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 23
AEP7:00 amBuenos Aires Jorge Newbery
11h 25m
1 stop
SJO3:25 pmSan José Juan Santamaria Intl
$587
Avianca
Aug 13
SJO4:00 pmSan José Juan Santamaria Intl
10h 40m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Aug 20
AEP7:00 amBuenos Aires Jorge Newbery
11h 25m
1 stop
SJO3:25 pmSan José Juan Santamaria Intl
$589

LATAM Airlines flights from San José to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on San José to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Sep 22
SJO4:55 pmSan José Juan Santamaria Intl
11h 45m
1 stop
AEP7:40 amBuenos Aires Jorge Newbery
Oct 6
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$596
LATAM Airlines
Sep 10
SJO4:55 pmSan José Juan Santamaria Intl
12h 35m
1 stop
AEP8:30 amBuenos Aires Jorge Newbery
Sep 16
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$609
LATAM Airlines
Sep 14
SJO4:55 pmSan José Juan Santamaria Intl
20h 05m
1 stop
AEP4:00 pmBuenos Aires Jorge Newbery
Sep 27
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$618

momondo Fare Finder

 
Customize your flight search to find flights from San José to Buenos Aires Jorge Newbery Airport 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, momondo users made 832,500 searches. Data last updated July 16, 2026.
Use the filters below to find and compare flights from San José to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 8/13

4:00 pm-5:40 am

1 stop10h 40m

Buenos Aires Jorge Newbery

Mon 8/17

7:00 am-3:25 pm

1 stop11h 25m

$579

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 10/21

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Wed 10/28

7:00 am-3:20 pm

1 stop11h 20m

$586

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 9/3

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Wed 9/23

7:00 am-3:25 pm

1 stop11h 25m

$587

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 8/19

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Mon 8/24

7:00 am-3:25 pm

1 stop11h 25m

$589

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 10/22

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Fri 10/30

7:00 am-3:20 pm

1 stop11h 20m

$590

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 9/14

4:00 pm-5:40 am

1 stop10h 40m

Buenos Aires Jorge Newbery

Sat 9/26

7:00 am-3:25 pm

1 stop11h 25m

$591

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 10/22

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Thu 10/29

7:00 am-3:20 pm

1 stop11h 20m

$592

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Tue 8/18

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Wed 9/30

7:00 am-3:25 pm

1 stop11h 25m

$593

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Fri 11/13

4:55 pm-8:30 am

1 stop12h 35m

Buenos Aires Jorge Newbery

Sat 11/28

8:05 pm-12:35 pm

1 stop19h 30m

$594

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 10/14

9:25 am-5:40 am

1 stop17h 15m

Buenos Aires Jorge Newbery

Fri 10/23

7:00 am-3:25 pm

1 stop11h 25m

$596

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from San José to Buenos Aires Jorge Newbery Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San José and Buenos Aires Jorge Newbery Airport?

What is the cheapest month to fly to Buenos Aires Jorge Newbery Airport?

The cheapest month to fly to Buenos Aires Jorge Newbery Airport from San José is in April. Flight prices, which tend to average around $456, are often lower during this time because this is during the off-season. If you aren’t able to travel to Buenos Aires Jorge Newbery Airport during the month of April, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $512.

How far in advance should I book a flight from San José to Buenos Aires Jorge Newbery Airport?

You are more likely to see cheaper flights to Buenos Aires Jorge Newbery Airport from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Jorge Newbery Airport for around $645 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Jorge Newbery Airport from San José for as low as $464 on momondo.

Can stopping save me money on San José to Buenos Aires Jorge Newbery Airport flights?

You could potentially save up to 18% on your flight if you consider stops on a San José to Buenos Aires Jorge Newbery Airport flight.

When to book flights from San José to Buenos Aires Jorge Newbery Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San José to Buenos Aires Jorge Newbery Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San José to Buenos Aires Jorge Newbery Airport (SJO to AEP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San José to Buenos Aires Jorge Newbery Airport

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from San José to Buenos Aires Jorge Newbery Airport takes 10h 25m
There are no direct flights from San José to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from San José to Buenos Aires Jorge Newbery Airport.
Search flight deals

Frequently asked questions about flying from San José to Buenos Aires Jorge Newbery Airport

  • How far is San José Juan Santamaria Intl to Buenos Aires Jorge Newbery by plane?

    Buenos Aires Jorge Newbery is 3501.4 mi away from San José Juan Santamaria Intl. By plane, this route typically takes 10h 25m.

  • When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to Buenos Aires Jorge Newbery Airport?

    Prices for flights from San José Juan Santamaria Intl Airport to Buenos Aires Jorge Newbery Airport were last updated today.

  • How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to Buenos Aires Jorge Newbery Airport?

  • How old do you have to be to fly from San José Juan Santamaria Intl Airport to Buenos Aires Jorge Newbery Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San José Juan Santamaria Intl Airport to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The necessary travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San José to Buenos Aires Jorge Newbery Airport?

Best airlines flying from San José to Buenos Aires Jorge Newbery Airport

Compare and see reviews for airlines that fly from San José to Buenos Aires Jorge Newbery Airport with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $339Free CancellationRating
7.4
1,956 reviews
Search LATAM Airlines flights
AviancaPriceFrom $434Free CancellationRating
6.5
2,524 reviews
Search Avianca flights

Why use momondo?

Why should I use momondo to find a flight deal from San José to Buenos Aires?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San José to Buenos Aires for you.

Can I find flights from San José to Buenos Aires with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San José to Buenos Aires flights to just show those with flexible booking policies.

How can momondo help me find flights from San José to Buenos Aires?

Once you have performed a search for San José to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San José to Buenos Aires right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from San José and alert you when they change.

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