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Cheap flights from San José to Buenos Aires from $165

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 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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LATAM Airlines Logo
4:55 pm - 7:40 pm
SJO
-
AEP
23h 45m2 stops
LATAM Airlines Logo
9:05 pm - 3:40 pm
AEP
-
SJO
21h 35m2 stops
$372LATAM Airlines
Mon, May 11 - Tue, May 19
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
LATAM Airlines Logo
9:05 pm - 3:40 pm
AEP
-
SJO
21h 35m2 stops
$397LATAM Airlines
Wed, Apr 8 - Thu, Apr 16
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
LATAM Airlines Logo
3:40 pm - 3:40 pm
AEP
-
SJO
27h 00m2 stops
$404LATAM Airlines
Tue, Apr 14 - Tue, Apr 28
Avianca Logo
4:45 pm - 5:40 am
SJO
-
AEP
9h 55m1 stop
Avianca Logo
7:00 am - 2:05 pm
AEP
-
SJO
10h 05m1 stop
$414Avianca
Mon, May 11 - Mon, May 18
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
LATAM Airlines Logo
9:05 pm - 3:40 pm
AEP
-
SJO
21h 35m2 stops
$425LATAM Airlines
Sat, May 2 - Sun, May 10
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
LATAM Airlines Logo
3:40 pm - 3:40 pm
AEP
-
SJO
27h 00m2 stops
$432LATAM Airlines
Mon, Apr 27 - Thu, May 7
LATAM Airlines Logo
4:55 pm - 2:40 pm
SJO
-
AEP
18h 45m2 stops
LATAM Airlines Logo
9:05 pm - 3:40 pm
AEP
-
SJO
21h 35m2 stops
$436LATAM Airlines
Sat, Apr 18 - Sat, Apr 25
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
LATAM Airlines Logo
9:05 pm - 11:45 pm
AEP
-
SJO
29h 40m2 stops
$437LATAM Airlines
Thu, May 7 - Wed, May 13
Multiple Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m1 stop
Multiple Airlines Logo
9:05 pm - 11:45 pm
AEP
-
SJO
29h 40m2 stops
$438Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m1 stop
LATAM Airlines Logo
9:05 pm - 3:40 pm
AEP
-
SJO
21h 35m2 stops
$439LATAM Airlines
Thu, Apr 30 - Thu, May 14

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
May 11
SJO4:55 pmSan José Juan Santamaria Intl
23h 45m
2 stops
AEP7:40 pmBuenos Aires Jorge Newbery
May 19
AEP9:05 pmBuenos Aires Jorge Newbery
21h 35m
2 stops
SJO3:40 pmSan José Juan Santamaria Intl
$372
Find similar
LATAM Airlines
Apr 8
SJO4:55 pmSan José Juan Santamaria Intl
11h 45m
1 stop
AEP7:40 amBuenos Aires Jorge Newbery
Apr 16
AEP9:05 pmBuenos Aires Jorge Newbery
21h 35m
2 stops
SJO3:40 pmSan José Juan Santamaria Intl
$397
Find similar
LATAM Airlines
Apr 14
SJO4:55 pmSan José Juan Santamaria Intl
11h 45m
1 stop
AEP7:40 amBuenos Aires Jorge Newbery
Apr 28
AEP3:40 pmBuenos Aires Jorge Newbery
27h 00m
2 stops
SJO3:40 pmSan José Juan Santamaria Intl
$404
Find similar

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
May 11
SJO4:45 pmSan José Juan Santamaria Intl
9h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 18
AEP7:00 amBuenos Aires Jorge Newbery
10h 05m
1 stop
SJO2:05 pmSan José Juan Santamaria Intl
$414
Find similar
Avianca
Apr 16
SJO4:45 pmSan José Juan Santamaria Intl
9h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Apr 23
AEP7:00 amBuenos Aires Jorge Newbery
11h 50m
1 stop
SJO3:50 pmSan José Juan Santamaria Intl
$468
Find similar
Avianca
May 1
SJO3:00 pmSan José Juan Santamaria Intl
11h 40m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 14
AEP7:00 amBuenos Aires Jorge Newbery
19h 30m
1 stop
SJO11:30 pmSan José Juan Santamaria Intl
$522
Find similar

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 December 18, 2025.
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

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

Tue 5/19

9:05 pm-3:40 pm

2 stops21h 35m

$372

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 4/8

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Thu 4/16

9:05 pm-3:40 pm

2 stops21h 35m

$397

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Tue 4/14

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Tue 4/28

3:40 pm-3:40 pm

2 stops27h 00m

$404

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 5/11

4:45 pm-5:40 am

1 stop9h 55m

Buenos Aires Jorge Newbery

Mon 5/18

7:00 am-2:05 pm

1 stop10h 05m

$414

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Sat 5/2

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Sun 5/10

9:05 pm-3:40 pm

2 stops21h 35m

$425

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Mon 4/27

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Thu 5/7

3:40 pm-3:40 pm

2 stops27h 00m

$432

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Sat 4/18

4:55 pm-2:40 pm

2 stops18h 45m

Buenos Aires Jorge Newbery

Sat 4/25

9:05 pm-3:40 pm

2 stops21h 35m

$436

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 5/7

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Wed 5/13

9:05 pm-11:45 pm

2 stops29h 40m

$437

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 4/16

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Thu 4/23

9:05 pm-11:45 pm

2 stops29h 40m

$438

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 4/30

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Thu 5/14

9:05 pm-3:40 pm

2 stops21h 35m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 May. Flight prices, which tend to average around $439, 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 May, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $480.

What is the cheapest time of day to depart on your flight to Buenos Aires Jorge Newbery Airport?

Flying to Buenos Aires Jorge Newbery Airport from San José in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $606 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Buenos Aires Jorge Newbery Airport, so prices are often more expensive at around $699 per ticket.

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 $579 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 $411 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

9h 55m

Direct flights

None
The fastest flight from San José to Buenos Aires Jorge Newbery Airport takes 9h 55m
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.
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  • 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 9h 55m.

  • 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
GOLPriceFrom $399Free CancellationRating
7.3
1,131 reviews
Search GOL flights
AviancaPriceFrom $541Free CancellationRating
6.6
2,490 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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