# Distance from Seattle (SEA) to Ranong Airport (UNN)

> 12,481 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,481 km / 7,755 mi / 6,739 nm
- **Estimated flight time**: 16h
- **Heading**: 316° (northwest)
- **Return heading**: 29° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 03:52 in Seattle, it's 17:52 in Ranong Airport)
- **Elevation difference**: 375 ft (UNN is lower than SEA)

## Airports

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 ft

### [Ranong Airport (UNN)](https://www.flightduration.online/airport/unn-ranong-airport/1ef266df-f5b0-6138-85ec-06bb2780ed98)

- City: Ranong Airport, Thailand
- ICAO: VTSR
- Timezone: Asia/Bangkok
- Coordinates: 9.780000, 98.590000
- Elevation: 57 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 03:52 in Seattle, it's 17:52 in Ranong Airport.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Ranong Airport (UNN)](https://www.flightduration.online/airport/unn-ranong-airport/1ef266df-f5b0-6138-85ec-06bb2780ed98)
- [Flight duration calculator](/#calculator)