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Cheap flights from San José to Buenos Aires from $260

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 4/27. 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

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Find the cheapest flights from San José to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$467LATAM Airlines
Wed, Jun 3 - Tue, Jun 9
LATAM Airlines Logo
4:55 pm - 8:30 am
SJO
-
AEP
12h 35m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$470LATAM Airlines
Thu, May 28 - Fri, Jun 5
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$472LATAM Airlines
Mon, Apr 20 - Thu, May 14
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$500LATAM Airlines
Mon, Jun 1 - Mon, Jun 15
LATAM Airlines Logo
4:55 pm - 2:50 pm
SJO
-
AEP
18h 55m
2 stops
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$512LATAM Airlines
Mon, Apr 20 - Thu, May 14
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m
1 stop
LATAM Airlines Logo
9:00 pm - 3:40 pm
AEP
-
SJO
21h 40m
2 stops
$523LATAM Airlines
Mon, May 11 - Thu, May 28
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m
1 stop
LATAM Airlines Logo
7:20 pm - 3:40 pm
AEP
-
SJO
23h 20m
2 stops
$526LATAM Airlines
Tue, May 12 - Thu, May 28
LATAM Airlines Logo
4:55 pm - 7:40 pm
SJO
-
AEP
23h 45m
2 stops
LATAM Airlines Logo
9:00 pm - 3:40 pm
AEP
-
SJO
21h 40m
2 stops
$534LATAM Airlines
Mon, May 11 - Thu, May 28
LATAM Airlines Logo
4:55 pm - 8:30 am
SJO
-
AEP
12h 35m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$537LATAM Airlines
Wed, Sep 9 - Wed, Sep 23
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m
1 stop
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
$542LATAM Airlines
Thu, Jun 4 - Wed, Jun 10

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
Jun 3
SJO4:55 pmSan José Juan Santamaria Intl
20h 05m
1 stop
AEP4:00 pmBuenos Aires Jorge Newbery
Jun 9
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$467
LATAM Airlines
May 28
SJO4:55 pmSan José Juan Santamaria Intl
12h 35m
1 stop
AEP8:30 amBuenos Aires Jorge Newbery
Jun 5
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$470
LATAM Airlines
Apr 20
SJO4:55 pmSan José Juan Santamaria Intl
11h 45m
1 stop
AEP7:40 amBuenos Aires Jorge Newbery
May 14
AEP8:40 amBuenos Aires Jorge Newbery
10h 00m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
$472

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
Apr 7
SJO4:00 pmSan José Juan Santamaria Intl
10h 40m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Apr 15
AEP7:00 amBuenos Aires Jorge Newbery
11h 25m
1 stop
SJO3:25 pmSan José Juan Santamaria Intl
$859
Avianca
Apr 15
SJO9:25 amSan José Juan Santamaria Intl
17h 15m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Apr 22
AEP7:00 amBuenos Aires Jorge Newbery
11h 25m
1 stop
SJO3:25 pmSan José Juan Santamaria Intl
$875

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 April 5, 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

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 6/3

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Tue 6/9

8:40 am-3:40 pm

1 stop10h 00m

$467

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 5/28

4:55 pm-8:30 am

1 stop12h 35m

Buenos Aires Jorge Newbery

Fri 6/5

8:40 am-3:40 pm

1 stop10h 00m

$470
Quickest round-trip

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 4/20

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Thu 5/14

8:40 am-3:40 pm

1 stop10h 00m

$472

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 6/1

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Mon 6/15

8:40 am-3:40 pm

1 stop10h 00m

$500

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 4/20

4:55 pm-2:50 pm

2 stops18h 55m

Buenos Aires Jorge Newbery

Thu 5/14

8:40 am-3:40 pm

1 stop10h 00m

$512

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 5/11

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Thu 5/28

9:00 pm-3:40 pm

2 stops21h 40m

$523

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Tue 5/12

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Thu 5/28

7:20 pm-3:40 pm

2 stops23h 20m

$526

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 5/11

4:55 pm-7:40 pm

2 stops23h 45m

Buenos Aires Jorge Newbery

Thu 5/28

9:00 pm-3:40 pm

2 stops21h 40m

$534

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 9/9

4:55 pm-8:30 am

1 stop12h 35m

Buenos Aires Jorge Newbery

Wed 9/23

8:40 am-3:40 pm

1 stop10h 00m

$537

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 6/4

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Wed 6/10

8:40 am-3:40 pm

1 stop10h 00m

$542

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 $462, 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 May is also cheap. Prices for this month can be found on momondo for an average of $467.

How far in advance should I book a flight 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 $592 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 $430 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

11h 45m

Direct flights

None
The fastest flight from San José to Buenos Aires Jorge Newbery Airport takes 11h 45m
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 11h 45m.

  • 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
AviancaPriceFrom $541Free CancellationRating
6.5
2,503 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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