# Distance from San Jose (SJO) to Semnan (SNX)

> 13,281 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,281 km / 8,252 mi / 7,171 nm
- **Estimated flight time**: 17h
- **Heading**: 39° (northeast)
- **Return heading**: 310° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Costa Rica) → Iran
- **Intercontinental**: North America → Asia
- **Time difference**: +9.5h (When it's 14:39 in San Jose, it's 00:09 in Semnan)
- **Elevation difference**: 644 ft (SNX is higher than SJO)

## Airports

### [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

### [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)

- City: Semnan, Iran
- ICAO: OIIS
- Timezone: Asia/Tehran
- Coordinates: 35.590000, 53.500000
- Elevation: 3,665 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 14:39 in San Jose, it's 00:09 in Semnan.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Juan Santamaria International Airport (SJO)](https://www.flightduration.online/airport/sjo-san-jose-juan-santamaria-international-airport/1ef266df-6643-69f0-a227-06bb2780ed98)
- [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)
- [Flight duration calculator](/#calculator)