# Distance from Attopeu (AOU) to Kathmandu (KTM)

> 2,639 km · estimated flight time 4h · Medium-haul route.

## Summary

- **Distance**: 2,639 km / 1,640 mi / 1,425 nm
- **Estimated flight time**: 4h
- **Heading**: 306° (northwest)
- **Return heading**: 118° (east southeast)
- **Classification**: Medium-haul
- **Type**: International (Laos) → Nepal
- **Time difference**: -1.25h (When it's 04:38 in Attopeu, it's 03:23 in Kathmandu)
- **Elevation difference**: 4,046 ft (KTM is higher than AOU)

## Airports

### [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)

- City: Attopeu, Laos
- ICAO: VLAP
- Timezone: Asia/Vientiane
- Coordinates: 14.810000, 106.820000
- Elevation: 344 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 a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

Time-zone information: When it's 04:38 in Attopeu, it's 03:23 in Kathmandu.

## Related

- [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)