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Cheap flights from Buenos Aires to San José from $249

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 11/22. 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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Avianca Logo
5:55 am - 12:35 pmEZE-SJO
9h 40mnonstop
Avianca Logo
4:45 pm - 5:10 amSJO-EZE
9h 25mnonstop
$425Avianca
Find Deal
Fri, Nov 28 - Sun, Dec 7
Avianca Logo
7:30 am - 3:20 pmEZE-SJO
10h 50m1 stop
Avianca Logo
4:45 pm - 5:10 amSJO-EZE
9h 25m1 stop
$435Avianca
Find Deal
Mon, Dec 8 - Mon, Dec 15
Avianca Logo
7:30 am - 3:20 pmEZE-SJO
10h 50m1 stop
Avianca Logo
9:45 am - 5:50 amSJO-EZE
17h 05m1 stop
$437Avianca
Find Deal
Thu, Dec 4 - Thu, Dec 11
Avianca Logo
6:15 am - 12:45 pmEZE-SJO
9h 30m1 stop
Avianca Logo
4:45 pm - 5:10 amSJO-EZE
9h 25m1 stop
$440Avianca
Find Deal
Thu, Nov 27 - Sun, Nov 30
LATAM Airlines Logo
9:05 pm - 3:35 pmAEP-SJO
21h 30m2 stops
LATAM Airlines Logo
5:00 pm - 7:55 amSJO-AEP
11h 55m1 stop
$455LATAM Airlines
Find Deal
Fri, Nov 21 - Thu, Nov 27
LATAM Airlines Logo
4:05 am - 3:35 pmEZE-SJO
14h 30m1 stop
LATAM Airlines Logo
5:00 pm - 9:15 amSJO-EZE
13h 15m2 stops
$455LATAM Airlines
Find Deal
Wed, Dec 3 - Thu, Dec 11
Copa Airlines Logo
3:57 am - 6:55 pmEZE-SJO
17h 58m1 stop
Copa Airlines Logo
11:00 am - 12:58 amSJO-EZE
10h 58m1 stop
$457Copa Airlines
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Wed, Nov 26 - Thu, Dec 4
Copa Airlines Logo
3:41 am - 6:37 pmEZE-SJO
17h 56m1 stop
Copa Airlines Logo
4:09 am - 10:34 pmSJO-EZE
15h 25m1 stop
$473Copa Airlines
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Tue, Dec 16 - Mon, Jan 5
Multiple Airlines Logo
7:45 am - 3:35 pmEZE-SJO
10h 50m1 stop
Multiple Airlines Logo
4:50 pm - 5:10 amSJO-EZE
9h 20m1 stop
$475Multiple Airlines
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Tue, Mar 31 - Sat, Apr 11
Multiple Airlines Logo
7:43 pm - 3:35 pmEZE-SJO
22h 52m2 stops
Multiple Airlines Logo
4:45 pm - 5:10 amSJO-EZE
9h 25m1 stop
$481Multiple Airlines
Find Deal
Thu, Nov 27 - Sun, Nov 30

LATAM Airlines flights from Buenos Aires to San José

Our best LATAM Airlines deals on Buenos Aires to San José flight tickets
LATAM Airlines
Nov 21
AEP9:05 pmBuenos Aires Jorge Newbery
21h 30m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
Nov 27
SJO5:00 pmSan José Juan Santamaria Intl
11h 55m
1 stop
AEP7:55 amBuenos Aires Jorge Newbery
$455
Find similar
LATAM Airlines
Nov 5
EZE7:43 pmBuenos Aires Ministro Pistarini
22h 52m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
Nov 19
SJO5:00 pmSan José Juan Santamaria Intl
10h 05m
1 stop
EZE6:05 amBuenos Aires Ministro Pistarini
$466
Find similar
LATAM Airlines
Nov 30
EZE7:43 pmBuenos Aires Ministro Pistarini
22h 52m
2 stops
SJO3:35 pmSan José Juan Santamaria Intl
Dec 5
SJO5:00 pmSan José Juan Santamaria Intl
13h 15m
2 stops
EZE9:15 amBuenos Aires Ministro Pistarini
$496
Find similar

Copa Airlines flights from Buenos Aires to San José

Our best Copa Airlines deals on Buenos Aires to San José flight tickets
Copa Airlines
Nov 6
EZE3:57 amBuenos Aires Ministro Pistarini
15h 43m
1 stop
SJO4:40 pmSan José Juan Santamaria Intl
Nov 12
SJO11:00 amSan José Juan Santamaria Intl
11h 00m
1 stop
EZE1:00 amBuenos Aires Ministro Pistarini
$457
Find similar
Copa Airlines
Dec 16
EZE3:41 amBuenos Aires Ministro Pistarini
17h 56m
1 stop
SJO6:37 pmSan José Juan Santamaria Intl
Jan 5
SJO4:09 amSan José Juan Santamaria Intl
15h 25m
1 stop
EZE10:34 pmBuenos Aires Ministro Pistarini
$473
Find similar
Copa Airlines
Nov 13
EZE2:15 amBuenos Aires Ministro Pistarini
10h 44m
1 stop
SJO9:59 amSan José Juan Santamaria Intl
Nov 19
SJO11:00 amSan José Juan Santamaria Intl
10h 53m
1 stop
EZE12:53 amBuenos Aires Ministro Pistarini
$479
Find similar

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 October 30, 2025.
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

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Fri 11/28

5:55 am-12:35 pm

Nonstop9h 40m

San José Juan Santamaria Intl

Sun 12/7

4:45 pm-5:10 am

Nonstop9h 25m

$425

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Mon 12/8

7:30 am-3:20 pm

1 stop10h 50m

San José Juan Santamaria Intl

Mon 12/15

4:45 pm-5:10 am

1 stop9h 25m

$435

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Thu 12/4

7:30 am-3:20 pm

1 stop10h 50m

San José Juan Santamaria Intl

Thu 12/11

9:45 am-5:50 am

1 stop17h 05m

$437

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Thu 11/27

6:15 am-12:45 pm

1 stop9h 30m

San José Juan Santamaria Intl

Sun 11/30

4:45 pm-5:10 am

1 stop9h 25m

$440

Buenos AiresSan José

AEP - SJO

AEPSJO

Buenos Aires Jorge Newbery

Fri 11/21

9:05 pm-3:35 pm

2 stops21h 30m

San José Juan Santamaria Intl

Thu 11/27

5:00 pm-7:55 am

1 stop11h 55m

$455

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Wed 12/3

4:05 am-3:35 pm

1 stop14h 30m

San José Juan Santamaria Intl

Thu 12/11

5:00 pm-9:15 am

2 stops13h 15m

$455

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Wed 11/26

3:57 am-6:55 pm

1 stop17h 58m

San José Juan Santamaria Intl

Thu 12/4

11:00 am-12:58 am

1 stop10h 58m

$457

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Tue 12/16

3:41 am-6:37 pm

1 stop17h 56m

San José Juan Santamaria Intl

Mon 1/5

4:09 am-10:34 pm

1 stop15h 25m

$473

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Tue 3/31

7:45 am-3:35 pm

1 stop10h 50m

San José Juan Santamaria Intl

Sat 4/11

4:50 pm-5:10 am

1 stop9h 20m

$475

Buenos AiresSan José

EZE - SJO

EZESJO

Buenos Aires Ministro Pistarini

Thu 11/27

7:43 pm-3:35 pm

2 stops22h 52m

San José Juan Santamaria Intl

Sun 11/30

4:45 pm-5:10 am

1 stop9h 25m

$481

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 cheapest month to fly to San José?

In general, September 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 $525. If you don’t want to visit San José in September, then you should wait until November to fly from Buenos Aires, when ticket prices are also cheap, with an average price of $550.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $617. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Buenos Aires to San José on a Wednesday will generally be more expensive and average around $819. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Buenos Aires to San José flights are usually those with departure times at noon. Our users have found flights to San José at noon for as low as $545. Flights in the morning are often more expensive with an average ticket price of $758.

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 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 $659 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 $579 on momondo.

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

There is only 1 cabin class available to choose from on Buenos Aires to San José Juan Santamaria Intl 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 Buenos Aires to San José flights?

You could potentially save up to 29% 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 October 2025, prices for Buenos Aires to San José flights are approximately 19% 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

9h 30m

Direct flights

Every day

Airports in San José

1 airport
The fastest flight from Buenos Aires to San José takes 9h 30m
Direct flights go from Buenos Aires to San José every day.
There is 1 airport near San José: San José Juan Santamaria Intl (SJO)
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  • 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 9h 30m, 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 $396Free CancellationRating
7.6
1,561 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $454Free CancellationRating
7.5
1,873 reviews
Search LATAM Airlines flights
AviancaPriceFrom $488Free CancellationRating
6.6
2,467 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 1 flight/week on average for this route. A good Avianca flight deal for Buenos Aires to San José starts from $488 round-trip, up to an average price of $674. Our users have rated Avianca at 6.6/10.

Traveling to a place near San José?

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