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Cheap flights from Buenos Aires to San Jose

One-way from $318, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Mon, Nov 30Any priceTue, Dec 1Any priceWed, Dec 2Any priceThu, Dec 3$318Fri, Dec 4$361Sat, Dec 5Any priceSun, Dec 6Any priceMon, Dec 7Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$318
LATAM Airlines Group, flight LA 2976Found 2 days ago, 1 adult
Check live price
7:20amBuenos AiresThu, Dec 3
Travel time 8h 45m, 1 stopEZESJO
1:05pmSan JoseThu, Dec 3
$342
LATAM Airlines Group, flight LA 426Found today, 1 adult
Check live price
10:30pmBuenos AiresMon, Nov 9
Travel time 10h 1m, 2 stopsAEPSJO
5:31amSan JoseTue, Nov 10
$348
LATAM Airlines Group, flight LA 2976Found 4 days ago, 1 adult
Check live price
7:20amBuenos AiresWed, May 5
Travel time 8h 45m, 1 stopEZESJO
1:05pmSan JoseWed, May 5
$361
LATAM Airlines Group, flight LA 2996Found 4 days ago, 1 adult
Check live price
8:05pmBuenos AiresFri, Dec 4
Travel time 8h 45m, 1 stopEZESJO
1:50amSan JoseSat, Dec 5
$363
Copa Airlines, flight CM 168Found 3 days ago, 1 adult
Check live price
5:40amBuenos AiresWed, Nov 11
Travel time 8h 50m, 1 stopEZESJO
11:30amSan JoseWed, Nov 11

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in Costa RicaTravel eSIM from $7.50, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in San Jose, booked ahead at a fixed price.
    See options
  • Things to do in San JosePopular tours from $31.45 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for Costa Rica from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425$37926–27–28–29–30–31–

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9$34210–11$36312–13–14–15–16–17–18–19–20–21–22$36923–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3$3184$3615–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20–21–22–23–2425262728293031
$342 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Dec 3, $318.

Lowest fares by month

In the fares found this week, December has the lowest: from $318 one-way, against $382 in February 2027. Pick a month to see its cheapest date.

  1. Oct$379
  2. Nov$342
  3. Dec$318
  4. Janno fares yet
  5. Feb$382
  6. Marno fares yet
  7. Aprno fares yet
  8. May$348
  9. Junno fares yet
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$200$400OctNov$318DecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$379Sun, Oct 251 stop
November$342Mon, Nov 92 stops
December$318Thu, Dec 31 stop
January 2027—
February 2027$382Mon, Feb 151 stop
March 2027—
April 2027—
May 2027$348Wed, May 51 stop
June 2027—
July 2027—
August 2027—
September 2027—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in San Jose. Average daily high and low and monthly precipitation.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare$379$342$318–$382––$348––––
High °C27°27°28°28°29°30°30°29°28°28°28°28°
Low °C19°18°18°19°19°19°19°19°19°19°19°18°
Precipitation mm331136346101480268280182277355

Source: San José, Costa Rica on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

What is the cheapest month to fly from Buenos Aires to San Jose?

In the fares found this week, December has the lowest: from $318 one-way, against $382 in February 2027.

What is the weather in San Jose in December?

In December, the cheapest month to fly, the average daily high in San Jose is 28 °C and the low 18 °C.

Are there direct flights from Buenos Aires to San Jose?

None of the fares found recently are nonstop. The cheapest options have at least one stop.

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