# Distance from Osan Air Base (OSN) to San Jose (SJO)

> 13,849 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,849 km / 8,605 mi / 7,478 nm
- **Estimated flight time**: 17h
- **Heading**: 38° (northeast)
- **Return heading**: 330° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → Costa Rica
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 06:50 in Osan Air Base, it's 15:50 in San Jose)
- **Elevation difference**: 2,983 ft (SJO is higher than OSN)

## Airports

### [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)

- City: Osan Air Base, South Korea
- ICAO: RKSO
- Timezone: Asia/Seoul
- Coordinates: 37.090000, 127.030000
- Elevation: 38 ft

### [Juan Santamaria International Airport (SJO)](https://www.flightduration.online/airport/sjo-san-jose-juan-santamaria-international-airport/1ef266df-6643-69f0-a227-06bb2780ed98)

- City: San Jose, Costa Rica
- ICAO: MROC
- Timezone: America/Costa_Rica
- Coordinates: 9.990000, -84.210000
- Elevation: 3,021 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 06:50 in Osan Air Base, it's 15:50 in San Jose.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)
- [Juan Santamaria International Airport (SJO)](https://www.flightduration.online/airport/sjo-san-jose-juan-santamaria-international-airport/1ef266df-6643-69f0-a227-06bb2780ed98)
- [Flight duration calculator](/#calculator)