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Cheap flights from San José, San José Province to Buenos Aires from $233

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, San José Province to Buenos Aires departing on 9/6. 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 San José, San José Province to Buenos Aires

Cheap round-trip flights

GOL Logo
8:25 pm - 9:20 amSJO-AEP
33h 55m1 stop
GOL Logo
6:20 pm - 7:10 pmAEP-SJO
27h 50m1 stop
$487GOL
Find Deal
Tue, Aug 26 - Wed, Sep 3
GOL Logo
8:25 pm - 2:20 amSJO-AEP
26h 55m1 stop
GOL Logo
10:20 am - 7:10 pmAEP-SJO
11h 50m1 stop
$488GOL
Find Deal
Thu, Sep 4 - Thu, Sep 11
Avianca Logo
3:00 pm - 3:20 pmSJO-EZE
21h 20m1 stop
Avianca Logo
1:40 am - 11:30 pmEZE-SJO
24h 50m1 stop
$491Avianca
Find Deal
Mon, Aug 25 - Sat, Sep 6
Avianca Logo
11:00 am - 1:25 amSJO-EZE
11h 25m1 stop
Avianca Logo
4:45 pm - 9:20 amEZE-SJO
19h 35m1 stop
$495Avianca
Find Deal
Mon, Sep 15 - Tue, Sep 23
LATAM Airlines Logo
5:00 pm - 11:45 amSJO-EZE
15h 45m2 stops
LATAM Airlines Logo
3:55 am - 3:35 pmEZE-SJO
14h 40m1 stop
$504LATAM Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
Logo
5:00 pm - 4:05 pmSJO-AEP
20h 05m1 stop
Logo
9:00 am - 7:10 pmAEP-SJO
13h 10m1 stop
$508
Find Deal
Thu, Aug 21 - Thu, Sep 18
Logo
5:00 pm - 9:40 amSJO-AEP
13h 40m2 stops
Logo
10:20 am - 7:10 pmAEP-SJO
11h 50m1 stop
$509
Find Deal
Thu, Sep 4 - Thu, Sep 11
LATAM Airlines Logo
5:00 pm - 6:10 amSJO-EZE
10h 10m1 stop
LATAM Airlines Logo
3:55 am - 3:35 pmEZE-SJO
14h 40m1 stop
$510LATAM Airlines
Find Deal
Mon, Aug 25 - Sat, Sep 6
Copa Airlines Logo
10:57 am - 12:55 amSJO-EZE
10h 58m1 stop
Copa Airlines Logo
2:33 pm - 7:27 amEZE-SJO
19h 54m1 stop
$524Copa Airlines
Find Deal
Mon, Sep 1 - Sat, Sep 13
Copa Airlines Logo
8:11 am - 12:44 amSJO-EZE
13h 33m1 stop
Copa Airlines Logo
3:47 am - 1:54 pmEZE-SJO
13h 07m1 stop
$534Copa Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1

Copa Airlines flights from San José, San José Province to Buenos Aires

Our best Copa Airlines deals on San José, San José Province to Buenos Aires flight tickets
Copa Airlines
Sep 1
SJO10:57 amSan José Juan Santamaria Intl
10h 58m
1 stop
EZE12:55 amBuenos Aires Ministro Pistarini
Sep 13
EZE2:33 pmBuenos Aires Ministro Pistarini
19h 54m
1 stop
SJO7:27 amSan José Juan Santamaria Intl
$524
Find similar
Copa Airlines
Sep 25
SJO8:11 amSan José Juan Santamaria Intl
13h 33m
1 stop
EZE12:44 amBuenos Aires Ministro Pistarini
Oct 1
EZE3:47 amBuenos Aires Ministro Pistarini
13h 07m
1 stop
SJO1:54 pmSan José Juan Santamaria Intl
$534
Find similar
Copa Airlines
Aug 14
SJO2:31 pmSan José Juan Santamaria Intl
10h 42m
1 stop
EZE4:13 amBuenos Aires Ministro Pistarini
Aug 18
EZE3:48 amBuenos Aires Ministro Pistarini
13h 06m
1 stop
SJO1:54 pmSan José Juan Santamaria Intl
$545
Find similar

Avianca flights from San José, San José Province to Buenos Aires

Our best Avianca deals on San José, San José Province to Buenos Aires flight tickets
Avianca
Aug 25
SJO3:00 pmSan José Juan Santamaria Intl
21h 20m
1 stop
EZE3:20 pmBuenos Aires Ministro Pistarini
Sep 6
EZE1:40 amBuenos Aires Ministro Pistarini
24h 50m
1 stop
SJO11:30 pmSan José Juan Santamaria Intl
$491
Find similar
Avianca
Sep 15
SJO11:00 amSan José Juan Santamaria Intl
11h 25m
1 stop
EZE1:25 amBuenos Aires Ministro Pistarini
Sep 23
EZE4:45 pmBuenos Aires Ministro Pistarini
19h 35m
1 stop
SJO9:20 amSan José Juan Santamaria Intl
$495
Find similar
Avianca
Sep 12
SJO11:00 amSan José Juan Santamaria Intl
11h 25m
1 stop
EZE1:25 amBuenos Aires Ministro Pistarini
Sep 20
EZE6:40 amBuenos Aires Ministro Pistarini
9h 40m
1 stop
SJO1:20 pmSan José Juan Santamaria Intl
$499
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San José, San José Province to Buenos Aires 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 31, 2025.
Use the filters below to find and compare flights from San José, San José Province to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Tue 8/26

8:25 pm-9:20 am

1 stop33h 55m

Buenos Aires Jorge Newbery

Wed 9/3

6:20 pm-7:10 pm

1 stop27h 50m

$487

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 9/4

8:25 pm-2:20 am

1 stop26h 55m

Buenos Aires Jorge Newbery

Thu 9/11

10:20 am-7:10 pm

1 stop11h 50m

$488

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 8/25

3:00 pm-3:20 pm

1 stop21h 20m

Buenos Aires Ministro Pistarini

Sat 9/6

1:40 am-11:30 pm

1 stop24h 50m

$491

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 9/15

11:00 am-1:25 am

1 stop11h 25m

Buenos Aires Ministro Pistarini

Tue 9/23

4:45 pm-9:20 am

1 stop19h 35m

$495

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Thu 9/11

5:00 pm-11:45 am

2 stops15h 45m

Buenos Aires Ministro Pistarini

Mon 9/15

3:55 am-3:35 pm

1 stop14h 40m

$504

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 8/21

5:00 pm-4:05 pm

1 stop20h 05m

Buenos Aires Jorge Newbery

Thu 9/18

9:00 am-7:10 pm

1 stop13h 10m

$508

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 9/4

5:00 pm-9:40 am

2 stops13h 40m

Buenos Aires Jorge Newbery

Thu 9/11

10:20 am-7:10 pm

1 stop11h 50m

$509

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 8/25

5:00 pm-6:10 am

1 stop10h 10m

Buenos Aires Ministro Pistarini

Sat 9/6

3:55 am-3:35 pm

1 stop14h 40m

$510

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 9/1

10:57 am-12:55 am

1 stop10h 58m

Buenos Aires Ministro Pistarini

Sat 9/13

2:33 pm-7:27 am

1 stop19h 54m

$524

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Thu 9/25

8:11 am-12:44 am

1 stop13h 33m

Buenos Aires Ministro Pistarini

Wed 10/1

3:47 am-1:54 pm

1 stop13h 07m

$534

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, San José Province 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

What is the typical price of a round-trip flight between San José, San José Province and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from San José, San José Province is in June. Flight prices, which tend to average around $543, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of June, then book flights to Buenos Aires from San José, San José Province during October instead. Flights to Buenos Aires in October, while not as cheap as those in June, still average around $545.

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, San José Province is on a Saturday. momondo users have found tickets for Saturday departures for as low as $539. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Friday is $588.

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

Our most recent data shows that the best time of day to fly to Buenos Aires is at noon. Flights from San José, San José Province to Buenos Aires during this time can be as low as $545. Try not to purchase tickets in the evening because they tend to be around $596. Of course, these prices can vary depending on the time of year and what airport you fly to.

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, San José Province when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $596 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, San José Province for as low as $478 on momondo.

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

There are 1 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, San José Province to Buenos Aires flights?

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

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

As of July 2025, prices for San José, San José Province to Buenos Aires flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from San José, San José Province to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from San José, San José Province 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, San José Province 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, San José Province to Buenos Aires

Best Price Found

$233

Fastest flight time

9h 03m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from San José, San José Province in the past 72 hours is $233. The best round-trip flight deal from San José, San José Province to Buenos Aires found on momondo in the last 72 hours is $487.
The fastest flight from San José, San José Province to Buenos Aires takes 9h 03m
Direct flights go from San José, San José Province to Buenos Aires on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Avianca.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)
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?

  • 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, San José Province to Buenos Aires?

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

Best airlines flying from San José, San José Province to Buenos Aires

Compare and see reviews for airlines that fly from San José, San José Province to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
GOLPriceFrom $399Free CancellationRating
7.3
1,091 reviews
Search GOL flights
AviancaPriceFrom $447Free CancellationRating
6.7
2,388 reviews
Search Avianca flights
Copa AirlinesPriceFrom $471Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $485Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines 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 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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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport