# Distance from Kathmandu (KTM) to Ontario (ONO)

> 11,721 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,721 km / 7,283 mi / 6,329 nm
- **Estimated flight time**: 15h
- **Heading**: 16° (north northeast)
- **Return heading**: 340° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -11.75h (When it's 10:02 in Kathmandu, it's 22:17 in Ontario)
- **Elevation difference**: 2,197 ft (ONO is lower than KTM)

## Airports

### [Tribhuvan International Airport (KTM)](https://www.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

### [Ontario Municipal Airport (ONO)](https://www.flightduration.online/airport/ono-ontario-ontario-municipal-airport/1ef266df-30d1-6416-acc3-06bb2780ed98)

- City: Ontario, United States
- ICAO: KONO
- Timezone: America/Denver
- Coordinates: 44.020000, -117.010000
- Elevation: 2,193 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 10:02 in Kathmandu, it's 22:17 in Ontario.
With a 11.75-hour time difference, expect significant jet lag.

## Related

- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Ontario Municipal Airport (ONO)](https://www.flightduration.online/airport/ono-ontario-ontario-municipal-airport/1ef266df-30d1-6416-acc3-06bb2780ed98)
- [Flight duration calculator](/#calculator)