Cheap flights from Buenos Aires to San José

Buenos Aires
BUE
Juan Santamaria
SJO

Flight deals from Buenos Aires to San José

Below you can see the best deals on flights Buenos Aires — San José 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 22 September, from $267.

Top 10 cheap flights from Buenos Aires to San José

LA
LA
$ 319

Buenos Aires — San José

08:40—15:55
27 Aug 2026
8 h 40 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

07:35—15:55
27 Aug 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

07:35—15:55
4 Sep 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

03:55—15:55
4 Sep 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

03:55—15:55
29 Aug 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

03:55—15:55
1 Sep 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

07:35—15:55
28 Aug 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

03:55—15:55
28 Aug 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

03:55—15:55
7 Sep 2026
8 h 45 m
1 stop
LA
LA
$ 319

Buenos Aires — San José

08:40—15:55
2 Sep 2026
8 h 40 m
1 stop

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

About the Buenos Aires — San José flight

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

The route has direct flights — around 5 flights per week, flights are operated by Avianca, a nonstop flight takes about 9 h 40 min, the distance between the cities is around 5,625 km.

Planning your trip? You may find our San José travel guide, how to get from the airport into town and San José 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 $267Min. price
SeptemberCheapest
AprilPeak season
YesDirect flights
5,625 kmDistance
9 h 40 minTravel time
1Airlines
5 / wkFlights

Flight ticket prices by day: Buenos Aires — San José

Below is a calendar of the lowest flight ticket prices for Buenos Aires — San José by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $267 in September, and the most expensive are around $386 in April. 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 Buenos Aires to San José by month. Tickets are usually cheapest in October (around $343) and priciest in January (about $478) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$478highMay$380lowSep$355low
Feb$466highJun$368lowOct$343low
Mar$454highJul$454highNov$368medium
Apr$417mediumAug$404mediumDec$466high

Some values are estimated based on seasonality.

When to fly

Weather in San José: it is warmest in April (up to 25 °C on average) and coolest in November (around 23 °C). The driest month is February.

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

Temperature · San José

Dry and wet days · San José

Wind speed and direction · San José

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

  • Book ahead: fares for Buenos Aires — San José 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.
  • Buenos Aires is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San José is usually September — 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 Buenos Aires — San José route are operated by 1 airline; Avianca runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • AviancaAV
    2x/week
    WebsiteFleet: 14032M pax/year
    • Direct flight EZE → SJO2x/week
    100.0%Open →

Cities and airports on the Buenos Aires — San José route

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

Departure

Buenos Aires

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

San José

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

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Frequently asked questions about the Buenos Aires — San José flight

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

A nonstop Buenos Aires — San José flight takes about 9 h 40 min — the distance between the cities is around 5,625 km.

How far is it from Buenos Aires to San José?

The distance from Buenos Aires to San José is about 5,625 km, which a nonstop flight covers in around 9 h 40 min.

Are there direct flights from Buenos Aires to San José?

Yes, there are nonstop flights Buenos Aires — San José — around 5 flights per week.

Which airlines fly from Buenos Aires to San José?

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

Which airports do Buenos Aires — San José flights use?

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

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

The price of a Buenos Aires — San José ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in April. Tickets typically cost between $267 and $386. Check the current lowest fare and low-price calendar on this page.

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

Flights Buenos Aires — San José 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 September. Compare prices by month in the price trend chart on this page.

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

To catch a low fare Buenos Aires — San José, 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 September.

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 Buenos Aires

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Where else you can fly from San José

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

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