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Cheap flights from San José, San José Province to Buenos Aires from $221

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 10/26. 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

LATAM Airlines Logo
5:00 pm - 9:40 amSJO-AEP
13h 40m2 stops
LATAM Airlines Logo
9:05 pm - 3:35 pmAEP-SJO
21h 30m2 stops
$467LATAM Airlines
Find Deal
Mon, Oct 13 - Sat, Oct 18
Copa Airlines Logo
5:57 am - 12:55 amSJO-EZE
15h 58m1 stop
Copa Airlines Logo
10:07 am - 6:47 pmEZE-SJO
11h 40m1 stop
$467Copa Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
LATAM Airlines Logo
5:00 pm - 7:55 amSJO-AEP
11h 55m1 stop
LATAM Airlines Logo
9:05 pm - 3:35 pmAEP-SJO
21h 30m2 stops
$468LATAM Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Multiple Airlines Logo
5:00 pm - 9:04 amSJO-EZE
13h 04m2 stops
Multiple Airlines Logo
2:40 am - 7:05 pmEZE-SJO
19h 25m1 stop
$468Multiple Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
Avianca Logo
1:45 am - 3:50 pmSJO-EZE
11h 05m1 stop
Avianca Logo
7:35 am - 7:15 pmEZE-SJO
14h 40m1 stop
$474Avianca
Find Deal
Fri, Nov 7 - Sun, Nov 16
LATAM Airlines Logo
5:00 pm - 6:20 amSJO-EZE
10h 20m1 stop
LATAM Airlines Logo
10:05 am - 3:35 pmEZE-SJO
32h 30m2 stops
$475LATAM Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 16
Avianca Logo
4:45 pm - 4:50 amSJO-EZE
9h 05m1 stop
Avianca Logo
6:50 am - 2:05 pmEZE-SJO
10h 15m1 stop
$478Avianca
Find Deal
Sun, Oct 5 - Fri, Oct 10
Copa Airlines Logo
10:05 am - 4:13 amSJO-EZE
15h 08m1 stop
Copa Airlines Logo
3:47 am - 6:58 pmEZE-SJO
18h 11m1 stop
$480Copa Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 12
GOL Logo
8:25 pm - 5:20 pmSJO-AEP
17h 55m1 stop
GOL Logo
1:55 pm - 7:10 pmAEP-SJO
32h 15m1 stop
$520GOL
Find Deal
Thu, Oct 9 - Mon, Oct 13
GOL Logo
8:25 pm - 9:20 amSJO-AEP
33h 55m1 stop
GOL Logo
10:20 am - 7:10 pmAEP-SJO
11h 50m1 stop
$560GOL
Find Deal
Thu, Sep 25 - Sat, Oct 4

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
Oct 15
SJO5:57 amSan José Juan Santamaria Intl
15h 58m
1 stop
EZE12:55 amBuenos Aires Ministro Pistarini
Oct 22
EZE10:07 amBuenos Aires Ministro Pistarini
11h 40m
1 stop
SJO6:47 pmSan José Juan Santamaria Intl
$467
Find similar
Copa Airlines
Sep 28
SJO10:05 amSan José Juan Santamaria Intl
15h 08m
1 stop
EZE4:13 amBuenos Aires Ministro Pistarini
Oct 12
EZE3:47 amBuenos Aires Ministro Pistarini
18h 11m
1 stop
SJO6:58 pmSan José Juan Santamaria Intl
$480
Find similar
Copa Airlines
Oct 6
SJO2:54 pmSan José Juan Santamaria Intl
10h 04m
1 stop
EZE3:58 amBuenos Aires Ministro Pistarini
Oct 13
EZE5:08 amBuenos Aires Ministro Pistarini
11h 46m
1 stop
SJO1:54 pmSan José Juan Santamaria Intl
$486
Find similar

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

Our best LATAM Airlines deals on San José, San José Province to Buenos Aires flight tickets
LATAM Airlines
Oct 13
SJO5:00 pmSan José Juan Santamaria Intl
13h 40m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Oct 18
AEP9:05 pmBuenos Aires Jorge Newbery
21h 30m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
$467
Find similar
LATAM Airlines
Nov 5
SJO5:00 pmSan José Juan Santamaria Intl
11h 55m
1 stop
AEP7:55 amBuenos Aires Jorge Newbery
Nov 12
AEP9:05 pmBuenos Aires Jorge Newbery
21h 30m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
$468
Find similar
LATAM Airlines
Oct 1
SJO5:00 pmSan José Juan Santamaria Intl
21h 11m
2 stops
EZE5:11 pmBuenos Aires Ministro Pistarini
Oct 26
EZE10:05 amBuenos Aires Ministro Pistarini
32h 30m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
$475
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 September 17, 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

Mon 10/13

5:00 pm-9:40 am

2 stops13h 40m

Buenos Aires Jorge Newbery

Sat 10/18

9:05 pm-3:35 pm

2 stops21h 30m

$467

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Wed 10/15

5:57 am-12:55 am

1 stop15h 58m

Buenos Aires Ministro Pistarini

Wed 10/22

10:07 am-6:47 pm

1 stop11h 40m

$467

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Wed 11/5

5:00 pm-7:55 am

1 stop11h 55m

Buenos Aires Jorge Newbery

Wed 11/12

9:05 pm-3:35 pm

2 stops21h 30m

$468

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Mon 11/17

5:00 pm-9:04 am

2 stops13h 04m

Buenos Aires Ministro Pistarini

Mon 11/24

2:40 am-7:05 pm

1 stop19h 25m

$468

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Fri 11/7

1:45 am-3:50 pm

1 stop11h 05m

Buenos Aires Ministro Pistarini

Sun 11/16

7:35 am-7:15 pm

1 stop14h 40m

$474

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Tue 11/11

5:00 pm-6:20 am

1 stop10h 20m

Buenos Aires Ministro Pistarini

Sun 11/16

10:05 am-3:35 pm

2 stops32h 30m

$475

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Sun 10/5

4:45 pm-4:50 am

1 stop9h 05m

Buenos Aires Ministro Pistarini

Fri 10/10

6:50 am-2:05 pm

1 stop10h 15m

$478

San JoséBuenos Aires

SJO - EZE

SJOEZE

San José Juan Santamaria Intl

Sun 9/28

10:05 am-4:13 am

1 stop15h 08m

Buenos Aires Ministro Pistarini

Sun 10/12

3:47 am-6:58 pm

1 stop18h 11m

$480

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 10/9

8:25 pm-5:20 pm

1 stop17h 55m

Buenos Aires Jorge Newbery

Mon 10/13

1:55 pm-7:10 pm

1 stop32h 15m

$520

San JoséBuenos Aires

SJO - AEP

SJOAEP

San José Juan Santamaria Intl

Thu 9/25

8:25 pm-9:20 am

1 stop33h 55m

Buenos Aires Jorge Newbery

Sat 10/4

10:20 am-7:10 pm

1 stop11h 50m

$560

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 $540, 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 $540.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $585. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Wednesday is $741.

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 $598 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 $563 on momondo.

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

There is only 1 cabin class 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 14% 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 September 2025, prices for San José, San José Province to Buenos Aires flights are approximately 14% 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

$226

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Buenos Aires

1 airport
The best one-way flight to Buenos Aires from San José, San José Province in the past 72 hours is $226. The best round-trip flight deal from San José, San José Province to Buenos Aires found on momondo in the last 72 hours is $547.
The fastest flight from San José, San José Province to Buenos Aires takes 9h 05m
Direct flights go from San José, San José Province to Buenos Aires every day.
There is 1 airport near Buenos Aires: 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?

  • 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
1,106 reviews
Search GOL flights
AviancaPriceFrom $461Free CancellationRating
6.7
2,436 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $474Free CancellationRating
7.5
1,849 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $484Free CancellationRating
7.6
1,533 reviews
Search Copa 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