Cheap flights from San José to Buenos Aires

Juan Santamaria
SJO
Buenos Aires
BUE

Flight deals from San José to Buenos Aires

Below you can see the best deals on flights San José — Buenos Aires for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 24 August, from $288.

Top 10 cheap flights from San José to Buenos Aires

LA
LA
$ 287

San José — Buenos Aires

16:55—08:30
2 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 287

San José — Buenos Aires

16:55—08:30
1 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 287

San José — Buenos Aires

16:55—07:40
25 Aug 2026
8 h 10 m
1 stop
LA
LA
$ 287

San José — Buenos Aires

16:55—08:30
5 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—06:10
6 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—08:30
6 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—08:30
24 Aug 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—06:10
7 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—07:40
7 Sep 2026
8 h 10 m
1 stop
LA
LA
$ 288

San José — Buenos Aires

16:55—08:30
7 Sep 2026
8 h 10 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

When is the best time to book a flight from San José to Buenos Aires?

The price of a flight from San José to Buenos Aires changes depending on how far ahead you book. For the best chance of a lower fare, book around 25 days before departure, when the average ticket costs about $1,284. Fares also tend to climb as the departure date gets closer.

About the San José — Buenos Aires flight

Looking for cheap flights from San José to Buenos Aires? Compare fares from different airlines, check the flight schedule and travel time — and book your San José — Buenos Aires ticket online at the best price.

The route has direct flights — around 9 flights per week, flights are operated by Avianca, a nonstop flight takes about 9 h 5 min, the distance between the cities is around 5,625 km.

Planning your trip? You may find our Buenos Aires travel guide, how to get from the airport into town and Buenos Aires weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $247Min. price
DecemberCheapest
MarchPeak season
YesDirect flights
5,625 kmDistance
9 h 5 minTravel time
1Airlines
9 / wkFlights

Flight ticket prices by day: San José — Buenos Aires

Below is a calendar of the lowest flight ticket prices for San José — Buenos Aires by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $247 in December, and the most expensive are around $300 in March. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from San José to Buenos Aires by month. Tickets are usually cheapest in June (around $343) and priciest in December (about $515) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$503highMay$368lowSep$380medium
Feb$478highJun$343lowOct$429medium
Mar$441mediumJul$392mediumNov$466high
Apr$417mediumAug$355lowDec$515high

Some values are estimated based on seasonality.

When to fly

Weather in Buenos Aires: it is warmest in January (up to 29 °C on average) and coolest in July (around 14 °C). The driest month is May.

Tickets are usually cheapest in December and most expensive in March. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Buenos Aires

Dry and wet days · Buenos Aires

Wind speed and direction · Buenos Aires

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How to get the best deal on a San José — Buenos Aires ticket

  • Book ahead: fares for San José — Buenos Aires are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Buenos Aires is usually December — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the San José — Buenos Aires route are operated by 1 airline; Avianca runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • AviancaAV
    3x/week
    WebsiteFleet: 14032M pax/year
    • Direct flight SJO → EZE3x/week
    100.0%Open →

Cities and airports on the San José — Buenos Aires route

Flights San José — Buenos Aires depart from Juan Santamaria International Airport and arrive at Jorge Newbery Airport and Ministro Pistarini Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

San José

SJO
Costa Rica
About the cityHow to get thereWeatherAll about the country Costa Rica
Arrival

Buenos Aires

BUE
Argentina
About the cityHow to get thereWeatherAll about the country Argentina
Departure airports
Arrival airports

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Frequently asked questions about the San José — Buenos Aires flight

How long is the flight from San José to Buenos Aires?

A nonstop San José — Buenos Aires flight takes about 9 h 5 min — the distance between the cities is around 5,625 km.

How far is it from San José to Buenos Aires?

The distance from San José to Buenos Aires is about 5,625 km, which a nonstop flight covers in around 9 h 5 min.

Are there direct flights from San José to Buenos Aires?

Yes, there are nonstop flights San José — Buenos Aires — around 9 flights per week.

Which airlines fly from San José to Buenos Aires?

Airlines operating San José — Buenos Aires include Avianca. See the full list with schedules in the "Airlines" section on this page.

Which airports do San José — Buenos Aires flights use?

Flights from San José depart from Juan Santamaria International Airport, and arrive at Jorge Newbery Airport, Ministro Pistarini Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from San José to Buenos Aires?

The price of a San José — Buenos Aires ticket depends on your travel date, season and demand: it is usually cheapest to fly in December, and most expensive in March. Tickets typically cost between $247 and $300. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights San José — Buenos Aires?

Flights San José — Buenos Aires are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is December. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from San José to Buenos Aires?

To catch a low fare San José — Buenos Aires, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually December.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from San José

See all
Panama CitySan SalvadorBogotaMexico CityMiamiHoustonMedellínOrlandoGuatemala CityNew York CityLos AngelesDallasFort LauderdaleCartagenaMadridCancunQueposTorontoAtlantaLimaCharlotteSan FranciscoParisMontrealWashington, D.C.NosaraGuadalajaraSanto DomingoSan JuanSao PauloFrankfurt am MainAmsterdamDenverMonterreyQuitoSan Pedro SulaChicagoGuayaquilManaguaPuerto Jimenez

Where else you can fly from Buenos Aires

See all
Sao PauloCordobaRio de JaneiroSantiagoMendozaPuerto IguazuBarilocheSaltaNeuquénUshuaiaSan Miguel de TucumánFlorianopolisAsunciónLimaMadridEl CalafateBogotaPanama CityComodoro RivadaviaMiamiSan Salvador de JujuyPosadasRosarioMontevideoPunta CanaResistenciaMar del PlataNew York CitySanta Cruz de la SierraSalvadorBarcelonaRomePorto AlegreRecifeBrasiliaAtlantaPunta del EsteSan Martín de los AndesFrankfurt am MainBahia Blanca

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