San José (SJO) to Santiago (SCL): 3,125 miles (5,029 km) great-circle, about 6h 45m nonstop by our estimate. Cheapest fare observed: $438 round-trip on LATAM, with 1 stop, departing June 2, 2026.
$438 round-trip, LATAM LA2409, departing 2026-06-02 at 16:55, returning 2026-06-12. The recorded itinerary left on a Tuesday, returning on a Friday 10 nights later; the fare was observed 38 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $438, it ranked 16th of the 30 round-trip fares we recorded from SJO (median $412). That is 14.0 cents per great-circle mile (round-trip price over one-way distance), below the SJO median of 21.6 cents across 29 round-trip routes.
Routes from SJO of similar length: Sao Paulo (3,440 mi) at $479 and Buenos Aires (3,523 mi) at $700.
SJO to SCL is the only one of 30 SJO routes where LATAM priced cheapest. It is the 10th longest of the 30 routes we track from SJO.
Of 5 departure airports with a fare to Santiago, San José (SJO) ranked 4th at $438. Lowest: $230 from Buenos Aires (EZE); highest: $1422 from Sydney (SYD); 2 nonstop. Cheapest-fare airlines (routes): LATAM (2), American Airlines (1), JetSMART (1) and LATAM Brasil (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Costa_Rica, America/Santiago; flight time is our estimate.