# Distance from Ambato (ATF) to Kathmandu (KTM)

> 16,609 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,609 km / 10,320 mi / 8,968 nm
- **Estimated flight time**: 21h
- **Heading**: 29° (north northeast)
- **Return heading**: 327° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Ecuador) → Nepal
- **Intercontinental**: South America → Asia
- **Time difference**: +10.75h (When it's 20:26 in Ambato, it's 07:11 in Kathmandu)
- **Elevation difference**: 4,112 ft (KTM is lower than ATF)

## Airports

### [Chachoan Airport (ATF)](https://www.flightduration.online/airport/atf-ambato-chachoan-airport/1ef266df-a4b4-672a-89f0-06bb2780ed98)

- City: Ambato, Ecuador
- ICAO: SEAM
- Timezone: America/Guayaquil
- Coordinates: -1.210000, -78.570000
- Elevation: 8,502 ft

### [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

## 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 20:26 in Ambato, it's 07:11 in Kathmandu.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Chachoan Airport (ATF)](https://www.flightduration.online/airport/atf-ambato-chachoan-airport/1ef266df-a4b4-672a-89f0-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)