# Distance from San Francisco (SFO) to Seoul Air Base (SSN)

> 9,043 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,043 km / 5,619 mi / 4,883 nm
- **Estimated flight time**: 12h
- **Heading**: 311° (northwest)
- **Return heading**: 49° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → South Korea
- **Intercontinental**: North America → Asia
- **Time difference**: +16h (When it's 13:33 in San Francisco, it's 05:33 in Seoul Air Base)
- **Elevation difference**: 79 ft (SSN is higher than SFO)

## Airports

### [San Francisco International Airport (SFO)](https://www.flightduration.online/airport/sfo-san-francisco-san-francisco-international-airport/1ef266df-382a-66ea-a1cc-06bb2780ed98)

- City: San Francisco, United States
- ICAO: KSFO
- Timezone: America/Los_Angeles
- Coordinates: 37.620000, -122.380000
- Elevation: 13 ft

### [Seoul Air Base (SSN)](https://www.flightduration.online/airport/ssn-seoul-air-base/1ef266df-8e13-6c0a-b71d-06bb2780ed98)

- City: Seoul Air Base, South Korea
- ICAO: RKSM
- Timezone: Asia/Seoul
- Coordinates: 37.450000, 127.110000
- Elevation: 92 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 13:33 in San Francisco, it's 05:33 in Seoul Air Base.
With a 16-hour time difference, expect significant jet lag.

## Related

- [San Francisco International Airport (SFO)](https://www.flightduration.online/airport/sfo-san-francisco-san-francisco-international-airport/1ef266df-382a-66ea-a1cc-06bb2780ed98)
- [Seoul Air Base (SSN)](https://www.flightduration.online/airport/ssn-seoul-air-base/1ef266df-8e13-6c0a-b71d-06bb2780ed98)
- [Flight duration calculator](/#calculator)