# Distance from Kathmandu (KTM) to Santa Maria (SMX)

> 12,544 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,544 km / 7,795 mi / 6,773 nm
- **Estimated flight time**: 16h
- **Heading**: 23° (north northeast)
- **Return heading**: 335° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12.75h (When it's 03:49 in Kathmandu, it's 15:04 in Santa Maria)
- **Elevation difference**: 4,129 ft (SMX 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

### [Santa Maria Pub/Capt G Allan Hancock Field (SMX)](https://www.flightduration.online/airport/smx-santa-maria-santa-maria-pubcapt-g-allan-hancock-field/1ef266df-390c-6c52-be40-06bb2780ed98)

- City: Santa Maria, United States
- ICAO: KSMX
- Timezone: America/Los_Angeles
- Coordinates: 34.900000, -120.460000
- Elevation: 261 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 03:49 in Kathmandu, it's 15:04 in Santa Maria.
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)
- [Santa Maria Pub/Capt G Allan Hancock Field (SMX)](https://www.flightduration.online/airport/smx-santa-maria-santa-maria-pubcapt-g-allan-hancock-field/1ef266df-390c-6c52-be40-06bb2780ed98)
- [Flight duration calculator](/#calculator)