# Distance from Altamira (ATM) to Kathmandu (KTM)

> 14,765 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,765 km / 9,174 mi / 7,972 nm
- **Estimated flight time**: 18h
- **Heading**: 54° (northeast)
- **Return heading**: 293° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Brazil) → Nepal
- **Intercontinental**: South America → Asia
- **Time difference**: +8.75h (When it's 07:10 in Altamira, it's 15:55 in Kathmandu)
- **Elevation difference**: 4,021 ft (KTM is higher than ATM)

## Airports

### [Altamira Airport (ATM)](https://www.flightduration.online/airport/atm-altamira-altamira-airport/1ef266df-94a8-619c-aa24-06bb2780ed98)

- City: Altamira, Brazil
- ICAO: SBHT
- Timezone: America/Santarem
- Coordinates: -3.250000, -52.250000
- Elevation: 369 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 07:10 in Altamira, it's 15:55 in Kathmandu.
With a 8.75-hour time difference, expect significant jet lag.

## Related

- [Altamira Airport (ATM)](https://www.flightduration.online/airport/atm-altamira-altamira-airport/1ef266df-94a8-619c-aa24-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)