# Distance from Kathmandu (KTM) to Porto (OPO)

> 8,335 km · estimated flight time 11h · Long-haul route.

## Summary

- **Distance**: 8,335 km / 5,179 mi / 4,500 nm
- **Estimated flight time**: 11h
- **Heading**: 309° (northwest)
- **Return heading**: 66° (east northeast)
- **Classification**: Long-haul
- **Type**: International (Nepal) → Portugal
- **Intercontinental**: Asia → Europe
- **Time difference**: -4.75h (When it's 20:00 in Kathmandu, it's 15:15 in Porto)
- **Elevation difference**: 4,162 ft (OPO 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

### [Francisco de Sa Carneiro Airport (OPO)](https://www.flightduration.online/airport/opo-porto-francisco-de-sa-carneiro-airport/1ef266df-55e0-6a2c-911f-06bb2780ed98)

- City: Porto, Portugal
- ICAO: LPPR
- Timezone: Europe/Lisbon
- Coordinates: 41.250000, -8.680000
- Elevation: 228 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 20:00 in Kathmandu, it's 15:15 in Porto.
The 4.75-hour time difference may cause some jet lag.

## Related

- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Francisco de Sa Carneiro Airport (OPO)](https://www.flightduration.online/airport/opo-porto-francisco-de-sa-carneiro-airport/1ef266df-55e0-6a2c-911f-06bb2780ed98)
- [Flight duration calculator](/#calculator)