# Distance from Kathmandu (KTM) to Santarem (STM)

> 14,937 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 14,937 km / 9,281 mi / 8,065 nm
- **Estimated flight time**: 19h
- **Heading**: 296° (west northwest)
- **Return heading**: 52° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → Brazil
- **Intercontinental**: Asia → South America
- **Time difference**: -8.75h (When it's 18:26 in Kathmandu, it's 09:41 in Santarem)
- **Elevation difference**: 4,192 ft (STM 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

### [Maestro Wilson Fonseca Airport (STM)](https://www.flightduration.online/airport/stm-santarem-maestro-wilson-fonseca-airport/1ef266df-95a3-6bc8-85d3-06bb2780ed98)

- City: Santarem, Brazil
- ICAO: SBSN
- Timezone: America/Belem
- Coordinates: -2.420000, -54.790000
- Elevation: 198 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 18:26 in Kathmandu, it's 09:41 in Santarem.
With a 8.75-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)
- [Maestro Wilson Fonseca Airport (STM)](https://www.flightduration.online/airport/stm-santarem-maestro-wilson-fonseca-airport/1ef266df-95a3-6bc8-85d3-06bb2780ed98)
- [Flight duration calculator](/#calculator)