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Cheap flights from Buenos Aires to San José from $299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to San José departing on 6/29. 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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Find the cheapest flights from Buenos Aires to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
7:35 am - 3:40 pm
EZE
-
SJO
11h 05m
1 stop
LATAM Airlines Logo
4:55 pm - 11:30 am
SJO
-
EZE
15h 35m
2 stops
$552LATAM Airlines
Tue, Jun 2 - Tue, Jun 9
LATAM Airlines Logo
3:55 am - 3:40 pm
EZE
-
SJO
14h 45m
1 stop
LATAM Airlines Logo
4:55 pm - 6:10 am
SJO
-
EZE
10h 15m
1 stop
$578LATAM Airlines
Wed, Jun 24 - Wed, Sep 2
LATAM Airlines Logo
3:55 am - 3:40 pm
EZE
-
SJO
14h 45m
1 stop
LATAM Airlines Logo
4:55 pm - 6:10 am
SJO
-
EZE
10h 15m
1 stop
$584LATAM Airlines
Mon, May 25 - Wed, Aug 26
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
LATAM Airlines Logo
4:55 pm - 4:00 pm
SJO
-
AEP
20h 05m
1 stop
$589LATAM Airlines
Tue, Jun 2 - Wed, Dec 2
LATAM Airlines Logo
7:35 am - 3:40 pm
EZE
-
SJO
11h 05m
1 stop
LATAM Airlines Logo
4:55 pm - 6:10 am
SJO
-
EZE
10h 15m
1 stop
$589LATAM Airlines
Tue, Jun 2 - Tue, Jun 9
Avianca Logo
4:50 pm - 11:55 pm
EZE
-
SJO
10h 05m
1 stop
Avianca Logo
5:00 pm - 5:05 am
SJO
-
EZE
9h 05m
1 stop
$594Avianca
Mon, May 18 - Thu, May 21
LATAM Airlines Logo
8:40 am - 3:40 pm
AEP
-
SJO
10h 00m
1 stop
LATAM Airlines Logo
4:55 pm - 8:30 am
SJO
-
AEP
12h 35m
1 stop
$600LATAM Airlines
Thu, Jun 25 - Wed, Sep 2
LATAM Airlines Logo
10:30 pm - 3:40 pm
AEP
-
SJO
20h 10m
2 stops
LATAM Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m
1 stop
$601LATAM Airlines
Tue, Jun 2 - Wed, Jun 10
Multiple Airlines Logo
5:45 am - 7:09 am
AEP
-
SJO
28h 24m
2 stops
Multiple Airlines Logo
4:55 pm - 7:40 am
SJO
-
AEP
11h 45m
1 stop
$610Multiple Airlines
Wed, Jun 10 - Fri, Jun 19
Avianca Logo
7:10 am - 8:50 am
EZE
-
SJO
28h 40m
1 stop
Avianca Logo
5:00 pm - 5:05 am
SJO
-
EZE
9h 05m
1 stop
$613Avianca
Tue, Aug 11 - Sat, Aug 15

Avianca flights from Buenos Aires to San José

Our best Avianca deals on Buenos Aires to San José flight tickets
Avianca
May 11
EZE6:10 amBuenos Aires Ministro Pistarini
9h 40m
1 stop
SJO12:50 pmSan José Juan Santamaria Intl
May 13
SJO4:00 pmSan José Juan Santamaria Intl
10h 40m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
$593
Avianca
May 18
EZE4:50 pmBuenos Aires Ministro Pistarini
10h 05m
1 stop
SJO11:55 pmSan José Juan Santamaria Intl
May 21
SJO5:00 pmSan José Juan Santamaria Intl
9h 05m
1 stop
EZE5:05 amBuenos Aires Ministro Pistarini
$594
Avianca
May 11
EZE6:10 amBuenos Aires Ministro Pistarini
9h 40m
1 stop
SJO12:50 pmSan José Juan Santamaria Intl
May 13
SJO9:25 amSan José Juan Santamaria Intl
16h 35m
2 stops
EZE5:00 amBuenos Aires Ministro Pistarini
$602

LATAM Airlines flights from Buenos Aires to San José

Our best LATAM Airlines deals on Buenos Aires to San José flight tickets
LATAM Airlines
Jun 2
EZE7:35 amBuenos Aires Ministro Pistarini
11h 05m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
Jun 9
SJO4:55 pmSan José Juan Santamaria Intl
15h 35m
2 stops
EZE11:30 amBuenos Aires Ministro Pistarini
$552
LATAM Airlines
Jun 24
EZE3:55 amBuenos Aires Ministro Pistarini
14h 45m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
Sep 2
SJO4:55 pmSan José Juan Santamaria Intl
10h 15m
1 stop
EZE6:10 amBuenos Aires Ministro Pistarini
$578
LATAM Airlines
May 25
EZE3:55 amBuenos Aires Ministro Pistarini
14h 45m
1 stop
SJO3:40 pmSan José Juan Santamaria Intl
Aug 26
SJO4:55 pmSan José Juan Santamaria Intl
10h 15m
1 stop
EZE6:10 amBuenos Aires Ministro Pistarini
$584

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to San José 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 May 8, 2026.
Use the filters below to find and compare flights from Buenos Aires to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Tue 6/2

7:35 am-3:40 pm

1 stop11h 05m

San José Juan Santamaria Intl

Tue 6/9

4:55 pm-11:30 am

2 stops15h 35m

$552

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Wed 6/24

3:55 am-3:40 pm

1 stop14h 45m

San José Juan Santamaria Intl

Wed 9/2

4:55 pm-6:10 am

1 stop10h 15m

$578

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Mon 5/25

3:55 am-3:40 pm

1 stop14h 45m

San José Juan Santamaria Intl

Wed 8/26

4:55 pm-6:10 am

1 stop10h 15m

$584

Buenos AiresSan José

AEP - SJO

AEPSJO

Buenos Aires Jorge Newbery

Tue 6/2

8:40 am-3:40 pm

1 stop10h 00m

San José Juan Santamaria Intl

Wed 12/2

4:55 pm-4:00 pm

1 stop20h 05m

$589

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Tue 6/2

7:35 am-3:40 pm

1 stop11h 05m

San José Juan Santamaria Intl

Tue 6/9

4:55 pm-6:10 am

1 stop10h 15m

$589
Quickest round-trip

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Mon 5/18

4:50 pm-11:55 pm

1 stop10h 05m

San José Juan Santamaria Intl

Thu 5/21

5:00 pm-5:05 am

1 stop9h 05m

$594

Buenos AiresSan José

AEP - SJO

AEPSJO

Buenos Aires Jorge Newbery

Thu 6/25

8:40 am-3:40 pm

1 stop10h 00m

San José Juan Santamaria Intl

Wed 9/2

4:55 pm-8:30 am

1 stop12h 35m

$600

Buenos AiresSan José

AEP - SJO

AEPSJO

Buenos Aires Jorge Newbery

Tue 6/2

10:30 pm-3:40 pm

2 stops20h 10m

San José Juan Santamaria Intl

Wed 6/10

4:55 pm-7:40 am

1 stop11h 45m

$601

Buenos AiresSan José

AEP - SJO

AEPSJO

Buenos Aires Jorge Newbery

Wed 6/10

5:45 am-7:09 am

2 stops28h 24m

San José Juan Santamaria Intl

Fri 6/19

4:55 pm-7:40 am

1 stop11h 45m

$610

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Tue 8/11

7:10 am-8:50 am

1 stop28h 40m

San José Juan Santamaria Intl

Sat 8/15

5:00 pm-5:05 am

1 stop9h 05m

$613

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 San José from

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

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 Buenos Aires and San José?

What is the cheapest month to fly to San José?

In general, April is the cheapest month to fly from Buenos Aires to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $163. If you don’t want to visit San José in April, then you should wait until November to fly from Buenos Aires, when ticket prices are also cheap, with an average price of $170.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Buenos Aires is on a Sunday. momondo users have found tickets for Sunday departures for as low as $692. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Buenos Aires to San José on a Tuesday will generally be more expensive and average around $867. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Buenos Aires to San José Juan Santamaria Intl flight route?

Fly from Buenos Aires Ministro Pistarini to San José Juan Santamaria Intl for the best Buenos Aires - San José Juan Santamaria Intl flight prices

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

You are more likely to see cheaper flights to San José from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $621 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Buenos Aires for as low as $516 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Buenos Aires to San José flight.

How have Buenos Aires to San José flight prices changed over time?

As of May 2026, prices for Buenos Aires to San José flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Buenos Aires to San José

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

Cheap Buenos Aires to San José (BUE to SJO) flight deals and tips

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

Fastest flight time

10h 00m

Direct flights

Wed and Sat

Airports in San José

1 airport
The fastest flight from Buenos Aires to San José takes 10h 00m
Direct flights go from Buenos Aires to San José on Wednesday and Saturday. There are no airlines offering direct flights.
There is 1 airport in San José. From Buenos Aires there are direct flights to San José Juan Santamaria Intl (SJO).
Search flight deals

Frequently asked questions about flying from Buenos Aires to San José

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

    Buenos Aires and San José Juan Santamaria Intl are 3505.7 mi apart from one another. Flights usually cover this in 10h 00m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Buenos Aires to San José Juan Santamaria Intl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The travel and health documents you'll need for your trip to San José Juan Santamaria Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Buenos Aires to San José?

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

Best airlines flying from Buenos Aires to San José

Compare and see reviews for airlines that fly from Buenos Aires to San José with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $274Free CancellationRating
7.5
1,582 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $454Free CancellationRating
7.4
1,917 reviews
Search LATAM Airlines flights
AviancaPriceFrom $454Free CancellationRating
6.5
2,523 reviews
Search Avianca flights

  • Avianca Flights From Buenos Aires to San José

    Avianca is one of the most popular airlines flying from Buenos Aires to San José, operating 3 flights/week on average for this route. A good Avianca flight deal for Buenos Aires to San José starts from $454 round-trip, up to an average price of $688. Our users have rated Avianca at 6.5/10.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Santa Elena
Dominical
San Gerardo de Dota
Esterillos Este

Why use momondo?

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

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 Buenos Aires to San José for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San José from Buenos Aires.

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

If you are not ready to book a flight from Buenos Aires to San José now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San José and let you know when they change.

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