Which layover airport has the shortest connection time from San José to Buenos Aires?

Guayaquil (GYE) has the shortest average layover time for this route: 1h 09m.

Which layover airport offers the lowest fares from San José to Buenos Aires?

Flights via Guayaquil (GYE) offer the lowest average round-trip price of $447.

How many flights depart from San José to Buenos Aires on average per week?

The number of flights available between San José and Buenos Aires is 5 per week as of March 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.

What airlines fly to Buenos Aires?

Avianca, Copa Airlines and LATAM Airlines are the top three most popular airlines that fly to Buenos Aires from San José according to our data. Avianca is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 3 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San José Juan Santamaria Intl to Buenos Aires?

LATAM Airlines and Copa Airlines are the most popular carriers operating from San José Juan Santamaria Intl to Buenos Aires

Which layover airport has the shortest travel time from San José to Buenos Aires?

Flights connecting via Guayaquil (GYE) have the shortest average one-way travel time: 9h 01m.

What is the most punctual flight time for San José to Buenos Aires flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

How often are flights from San José to Buenos Aires delayed?

Historically, on average around 100% of flights between San José and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 342 minutes.

Which airport is the most popular layover for flights between San José and Buenos Aires?

Panama City (PTY) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

As of March 2026, there are 3 operators available to choose from for flights from San José Juan Santamaria Intl Airport to Buenos Aires.

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

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 San José Juan Santamaria Intl Airport to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The travel and health documents you'll need for your trip to Buenos Aires 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 Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$259 Cheap Flights from San José to Buenos Aires in 2026

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Enter your travel dates to find the best prices.

4:55 pm - 7:40 am

SJO

AEP

11h 45m

1 stop

8:40 am - 3:40 pm

AEP

SJO

10h 00m

1 stop

$467LATAM Airlines

Wed, May 13 - Mon, May 18

4:55 pm - 6:10 am

SJO

EZE

10h 15m

1 stop

7:35 am - 3:40 pm

EZE

SJO

11h 05m

1 stop

$467LATAM Airlines

Thu, Jun 4 - Wed, Jun 10

10:05 am - 2:30 am

SJO

EZE

13h 25m

1 stop

2:49 pm - 7:12 am

EZE

SJO

19h 23m

1 stop

$470Copa Airlines

Wed, May 6 - Fri, May 15

10:05 am - 2:30 am

SJO

EZE

13h 25m

1 stop

9:02 am - 4:51 pm

EZE

SJO

10h 49m

1 stop

$477Copa Airlines

Mon, May 11 - Thu, May 14

4:00 pm - 5:40 am

SJO

EZE

10h 40m

1 stop

6:15 am - 1:05 pm

EZE

SJO

9h 50m

1 stop

$490Avianca

Fri, Aug 21 - Fri, Aug 28

2:50 pm - 4:16 am

SJO

EZE

10h 26m

1 stop

2:49 pm - 9:47 pm

EZE

SJO

9h 58m

1 stop

$491Copa Airlines

Tue, May 12 - Tue, May 26

10:05 am - 2:30 am

SJO

EZE

13h 25m

1 stop

2:49 pm - 9:47 pm

EZE

SJO

9h 58m

1 stop

$493Copa Airlines

Mon, May 11 - Thu, May 14

8:13 am - 10:25 pm

SJO

EZE

11h 12m

1 stop

2:49 pm - 7:12 am

EZE

SJO

19h 23m

1 stop

$494Copa Airlines

Wed, Apr 22 - Wed, May 13

4:55 pm - 4:00 pm

SJO

AEP

20h 05m

1 stop

3:45 pm - 3:40 pm

AEP

SJO

26h 55m

2 stops

$495LATAM Airlines

Tue, Jun 16 - Thu, Jun 25

1:40 am - 3:40 pm

SJO

EZE

11h 00m

1 stop

7:10 am - 8:50 am

EZE

SJO

28h 40m

1 stop

$498Avianca

Sat, Apr 18 - Thu, Apr 30

Avianca flights from San José to Buenos Aires

Our best Avianca deals on San José to Buenos Aires flight tickets

Avianca

Aug 21

SJO9:25 amSan José Juan Santamaria Intl

17h 15m

1 stop

EZE5:40 amBuenos Aires Ministro Pistarini

Aug 31

EZE7:10 amBuenos Aires Ministro Pistarini

11h 15m

1 stop

SJO3:25 pmSan José Juan Santamaria Intl

$490

Avianca

Apr 18

SJO1:40 amSan José Juan Santamaria Intl

11h 00m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

Apr 30

EZE7:10 amBuenos Aires Ministro Pistarini

28h 40m

1 stop

SJO8:50 amSan José Juan Santamaria Intl

$498

Avianca

Aug 14

SJO1:50 amSan José Juan Santamaria Intl

10h 50m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

Aug 24

EZE6:10 amBuenos Aires Ministro Pistarini

9h 40m

1 stop

SJO12:50 pmSan José Juan Santamaria Intl

$500

LATAM Airlines flights from San José to Buenos Aires

Our best LATAM Airlines deals on San José to Buenos Aires flight tickets

LATAM Airlines

Jun 4

SJO4:55 pmSan José Juan Santamaria Intl

10h 15m

1 stop

EZE6:10 amBuenos Aires Ministro Pistarini

Jun 10

EZE7:35 amBuenos Aires Ministro Pistarini

11h 05m

1 stop

SJO3:40 pmSan José Juan Santamaria Intl

$467

LATAM Airlines

Apr 27

SJO4:55 pmSan José Juan Santamaria Intl

10h 25m

1 stop

EZE6:20 amBuenos Aires Ministro Pistarini

May 9

EZE12:15 pmBuenos Aires Ministro Pistarini

30h 25m

2 stops

SJO3:40 pmSan José Juan Santamaria Intl

$495

LATAM Airlines

May 11

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

$512

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 5/13

4:55 pm-7:40 am

1 stop11h 45m

Buenos Aires Jorge Newbery

Mon 5/18

8:40 am-3:40 pm

1 stop10h 00m

$467

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Thu 6/4

4:55 pm-6:10 am

1 stop10h 15m

Buenos Aires Ministro Pistarini

Wed 6/10

7:35 am-3:40 pm

1 stop11h 05m

$467

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Wed 5/6

10:05 am-2:30 am

1 stop13h 25m

Buenos Aires Ministro Pistarini

Fri 5/15

2:49 pm-7:12 am

1 stop19h 23m

$470

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 5/11

10:05 am-2:30 am

1 stop13h 25m

Buenos Aires Ministro Pistarini

Thu 5/14

9:02 am-4:51 pm

1 stop10h 49m

$477

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Fri 8/21

4:00 pm-5:40 am

1 stop10h 40m

Buenos Aires Ministro Pistarini

Fri 8/28

6:15 am-1:05 pm

1 stop9h 50m

$490

Quickest round-trip

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Tue 5/12

2:50 pm-4:16 am

1 stop10h 26m

Buenos Aires Ministro Pistarini

Tue 5/26

2:49 pm-9:47 pm

1 stop9h 58m

$491

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 5/11

10:05 am-2:30 am

1 stop13h 25m

Buenos Aires Ministro Pistarini

Thu 5/14

2:49 pm-9:47 pm

1 stop9h 58m

$493

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Wed 4/22

8:13 am-10:25 pm

1 stop11h 12m

Buenos Aires Ministro Pistarini

Wed 5/13

2:49 pm-7:12 am

1 stop19h 23m

$494

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Tue 6/16

4:55 pm-4:00 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Thu 6/25

3:45 pm-3:40 pm

2 stops26h 55m

$495

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Sat 4/18

1:40 am-3:40 pm

1 stop11h 00m

Buenos Aires Ministro Pistarini

Thu 4/30

7:10 am-8:50 am

1 stop28h 40m

$498

Flights are sorted by cheapest round-trip flights first.

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

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

Prices

Airlines

Delays

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Other information

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from San José is in May. Flight prices, which tend to average around $485, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from San José during September instead. Flights to Buenos Aires in September, while not as cheap as those in May, still average around $512.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from San José is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $424. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $604.

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

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

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

You are more likely to see cheaper flights to Buenos Aires from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $537 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from San José for as low as $481 on momondo.

What cabin class options are available on San José Juan Santamaria Intl to Buenos Aires flights?

There are 2 cabin classes available to choose from on San José Juan Santamaria Intl to Buenos Aires flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between San José to Buenos Aires.

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

As of March 2026, prices for San José to Buenos Aires flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from San José to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from San José to Buenos Aires 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 (SJO to BUE) flight deals and tips

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

Fastest flight time	9h 05m
Direct flights	Every day
Airports in Buenos Aires	2 airports

The fastest flight from San José to Buenos Aires takes 9h 05m

Direct flights go from San José to Buenos Aires every day.

There are 2 airports in Buenos Aires. From San José there are direct flights to Buenos Aires Ministro Pistarini (EZE).

Search flight deals

How far is San José Juan Santamaria Intl to Buenos Aires by plane?
The straight-line distance from San José Juan Santamaria Intl to Buenos Aires is 3505.7 mi. Flights usually cover this in 9h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to Buenos Aires?
Prices for flights from San José Juan Santamaria Intl Airport to Buenos Aires are refreshed on a daily basis.
How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to Buenos Aires?
As of March 2026, there are 3 operators available to choose from for flights from San José Juan Santamaria Intl Airport to Buenos Aires.
How old do you have to be to fly from San José Juan Santamaria Intl Airport to Buenos Aires?
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 San José Juan Santamaria Intl Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents you'll need for your trip to Buenos Aires 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 Buenos Aires. 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 San José to Buenos Aires?
Based on momondo bookings for flights between San José and Buenos Aires, the leading plane model is Airbus A320neo, making up 100.00% of the total bookings.
What is the most popular airline from San José to Buenos Aires?
momondo data reveals that the most frequently booked airline on the route from San José to Buenos Aires is Avianca, representing 51% of all bookings. The subsequent popular airlines are Copa Airlines at 24%, LATAM Airlines at 20%, and GOL at 4%.

Best airlines flying from San José to Buenos Aires

Compare and see reviews for airlines that fly from San José to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
Copa Airlines	PriceFrom $266	Free Cancellation	Rating 7.5 1,567 reviews	Search Copa Airlines flights
Avianca	PriceFrom $341	Free Cancellation	Rating 6.5 2,498 reviews	Search Avianca flights
LATAM Airlines	PriceFrom $371	Free Cancellation	Rating 7.4 1,918 reviews	Search LATAM Airlines flights

Avianca Flights From San José to Buenos Aires
Avianca flies from San José to Buenos Aires around 5 times per week, with 2,498 momondo users rating the airline 6.5/10. The cheapest Avianca deal from San José to Buenos Aires in the last 72 hours was $341 (round-trip), much lower than the average airfare cost of $613 for Avianca flights on this route.

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 enables you to select and highlight flights to Buenos Aires from San José with this policy.

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

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 Buenos Aires from San José.

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

Of course. momondo tracks the price of San José to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from San José to Buenos Aires from $259

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 4/17. 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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How to get the cheapest flight ticket from San José to Buenos Aires

What is the cheapest month to fly to Buenos Aires?

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

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

What cabin class options are available on San José Juan Santamaria Intl to Buenos Aires flights?

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

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

What is the cheapest airline that flies from San José Juan Santamaria Intl to Buenos Aires?

What airlines fly to Buenos Aires?

How often are flights from San José to Buenos Aires delayed?

What is the most punctual flight time for San José to Buenos Aires flights?

What day of the week experiences the fewest flight delays on this route?

Which airport is the most popular layover for flights between San José and Buenos Aires?

Which layover airport offers the lowest fares from San José to Buenos Aires?

Which layover airport has the shortest travel time from San José to Buenos Aires?

Which layover airport has the shortest connection time from San José to Buenos Aires?

How many flights depart from San José to Buenos Aires on average per week?

When to book flights from San José to Buenos Aires

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

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

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Airports in Buenos Aires

Best airlines flying from San José to Buenos Aires

Compare and see reviews for airlines that fly from San José to Buenos Aires with momondo

Avianca Flights From San José to Buenos Aires

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Airports listed have a maximum distance of 17.0 mi from Buenos Aires

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List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

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