# Distance from Kupang-Timor Island (KOE) to Seattle (SEA)

> 12,636 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,636 km / 7,852 mi / 6,823 nm
- **Estimated flight time**: 16h
- **Heading**: 42° (northeast)
- **Return heading**: 281° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (Indonesia) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 14:04 in Kupang-Timor Island, it's 23:04 in Seattle)
- **Elevation difference**: 97 ft (SEA is higher than KOE)

## Airports

### [El Tari Airport (KOE)](https://www.flightduration.online/airport/koe-kupang-timor-island-el-tari-airport/1ef266df-fae6-6c88-85f8-06bb2780ed98)

- City: Kupang-Timor Island, Indonesia
- ICAO: WATT
- Timezone: Asia/Makassar
- Coordinates: -10.170000, 123.670000
- Elevation: 335 ft

### [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

## 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 14:04 in Kupang-Timor Island, it's 23:04 in Seattle.
With a 15-hour time difference, expect significant jet lag.

## Related

- [El Tari Airport (KOE)](https://www.flightduration.online/airport/koe-kupang-timor-island-el-tari-airport/1ef266df-fae6-6c88-85f8-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)