# Distance from Kathmandu (KTM) to Sulphur Springs (SLR)

> 13,247 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,247 km / 8,231 mi / 7,153 nm
- **Estimated flight time**: 17h
- **Heading**: 1° (north)
- **Return heading**: 359° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -10.75h (When it's 18:10 in Kathmandu, it's 07:25 in Sulphur Springs)
- **Elevation difference**: 3,901 ft (SLR is lower than KTM)

## Airports

### [Tribhuvan International Airport (KTM)](https://flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)

- City: Kathmandu, Nepal
- ICAO: VNKT
- Timezone: Asia/Kathmandu
- Coordinates: 27.700000, 85.360000
- Elevation: 4,390 ft

### [Sulphur Springs Municipal Airport (SLR)](https://flightduration.online/airport/slr-sulphur-springs-sulphur-springs-municipal-airport/1ef266df-38e7-66a0-bcac-06bb2780ed98)

- City: Sulphur Springs, United States
- ICAO: KSLR
- Timezone: America/Chicago
- Coordinates: 33.160000, -95.620000
- Elevation: 489 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 18:10 in Kathmandu, it's 07:25 in Sulphur Springs.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Tribhuvan International Airport (KTM)](https://flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Sulphur Springs Municipal Airport (SLR)](https://flightduration.online/airport/slr-sulphur-springs-sulphur-springs-municipal-airport/1ef266df-38e7-66a0-bcac-06bb2780ed98)
- [Flight duration calculator](/#calculator)