# Distance from Seattle (SEA) to Waikabubak-Sumba Island (TMC)

> 12,898 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,898 km / 8,014 mi / 6,964 nm
- **Estimated flight time**: 16h
- **Heading**: 285° (west northwest)
- **Return heading**: 41° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Indonesia
- **Intercontinental**: North America → Asia
- **Time difference**: +15h (When it's 10:19 in Seattle, it's 01:19 in Waikabubak-Sumba Island)
- **Elevation difference**: 271 ft (TMC 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

### [Tambolaka Airport (TMC)](https://www.flightduration.online/airport/tmc-waikabubak-sumba-island-tambolaka-airport/1ef266df-f92e-6b20-967f-06bb2780ed98)

- City: Waikabubak-Sumba Island, Indonesia
- ICAO: WADT
- Timezone: Asia/Makassar
- Coordinates: -9.410000, 119.240000
- Elevation: 161 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 10:19 in Seattle, it's 01:19 in Waikabubak-Sumba Island.
With a 15-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)
- [Tambolaka Airport (TMC)](https://www.flightduration.online/airport/tmc-waikabubak-sumba-island-tambolaka-airport/1ef266df-f92e-6b20-967f-06bb2780ed98)
- [Flight duration calculator](/#calculator)