# Distance from Kathmandu (KTM) to Oiapoque (OYK)

> 14,239 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,239 km / 8,848 mi / 7,689 nm
- **Estimated flight time**: 18h
- **Heading**: 301° (west northwest)
- **Return heading**: 50° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → Brazil
- **Intercontinental**: Asia → South America
- **Time difference**: -8.75h (When it's 05:42 in Kathmandu, it's 20:57 in Oiapoque)
- **Elevation difference**: 4,327 ft (OYK 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

### [Oiapoque Airport (OYK)](https://www.flightduration.online/airport/oyk-oiapoque-oiapoque-airport/1ef266df-9548-6278-9109-06bb2780ed98)

- City: Oiapoque, Brazil
- ICAO: SBOI
- Timezone: America/Cayenne
- Coordinates: 3.860000, -51.800000
- Elevation: 63 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 05:42 in Kathmandu, it's 20:57 in Oiapoque.
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)
- [Oiapoque Airport (OYK)](https://www.flightduration.online/airport/oyk-oiapoque-oiapoque-airport/1ef266df-9548-6278-9109-06bb2780ed98)
- [Flight duration calculator](/#calculator)