# Distance from Seattle (SEA) to Simara (SIF)

> 11,280 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,280 km / 7,009 mi / 6,091 nm
- **Estimated flight time**: 14h
- **Heading**: 335° (north northwest)
- **Return heading**: 18° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +12.75h (When it's 20:29 in Seattle, it's 09:14 in Simara)
- **Elevation difference**: 18 ft (SIF is higher 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

### [Simara Airport (SIF)](https://www.flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)

- City: Simara, Nepal
- ICAO: VNSI
- Timezone: Asia/Kathmandu
- Coordinates: 27.160000, 84.980000
- Elevation: 450 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 20:29 in Seattle, it's 09:14 in Simara.
With a 12.75-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)
- [Simara Airport (SIF)](https://www.flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)
- [Flight duration calculator](/#calculator)