# Distance from Kathmandu (KTM) to Oceanside (OCN)

> 12,830 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,830 km / 7,972 mi / 6,927 nm
- **Estimated flight time**: 16h
- **Heading**: 21° (north northeast)
- **Return heading**: 338° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12.75h (When it's 16:45 in Kathmandu, it's 04:00 in Oceanside)
- **Elevation difference**: 4,362 ft (OCN 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

### [Bob Maxwell Memorial Airfield (OCN)](https://www.flightduration.online/airport/ocn-oceanside-bob-maxwell-memorial-airfield/1ef266df-306a-62f2-9db7-06bb2780ed98)

- City: Oceanside, United States
- ICAO: KOKB
- Timezone: America/Los_Angeles
- Coordinates: 33.220000, -117.350000
- Elevation: 28 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 16:45 in Kathmandu, it's 04:00 in Oceanside.
With a 12.75-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)
- [Bob Maxwell Memorial Airfield (OCN)](https://www.flightduration.online/airport/ocn-oceanside-bob-maxwell-memorial-airfield/1ef266df-306a-62f2-9db7-06bb2780ed98)
- [Flight duration calculator](/#calculator)