# Distance from Seattle (SEA) to Uttaradit (UTR)

> 11,636 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,636 km / 7,230 mi / 6,283 nm
- **Estimated flight time**: 15h
- **Heading**: 318° (northwest)
- **Return heading**: 28° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 09:48 in Seattle, it's 23:48 in Uttaradit)
- **Elevation difference**: 170 ft (UTR 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

### [Uttaradit Airport (UTR)](https://www.flightduration.online/airport/utr-uttaradit-uttaradit-airport/1ef266df-f579-6e44-9d0d-06bb2780ed98)

- City: Uttaradit, Thailand
- ICAO: VTPU
- Timezone: Asia/Bangkok
- Coordinates: 17.620000, 100.100000
- Elevation: 262 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 09:48 in Seattle, it's 23:48 in Uttaradit.
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)
- [Uttaradit Airport (UTR)](https://www.flightduration.online/airport/utr-uttaradit-uttaradit-airport/1ef266df-f579-6e44-9d0d-06bb2780ed98)
- [Flight duration calculator](/#calculator)