# Distance from Kathmandu (KTM) to Retalhuleu (RER)

> 15,310 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,310 km / 9,513 mi / 8,267 nm
- **Estimated flight time**: 19h
- **Heading**: 356° (north)
- **Return heading**: 4° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → Guatemala
- **Intercontinental**: Asia → North America
- **Time difference**: -11.75h (When it's 17:41 in Kathmandu, it's 05:56 in Retalhuleu)
- **Elevation difference**: 3,734 ft (RER 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

### [Retalhuleu Airport (RER)](https://www.flightduration.online/airport/rer-retalhuleu-retalhuleu-airport/1ef266df-5cf0-6772-99c5-06bb2780ed98)

- City: Retalhuleu, Guatemala
- ICAO: MGRT
- Timezone: America/Guatemala
- Coordinates: 14.520000, -91.700000
- Elevation: 656 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 17:41 in Kathmandu, it's 05:56 in Retalhuleu.
With a 11.75-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)
- [Retalhuleu Airport (RER)](https://www.flightduration.online/airport/rer-retalhuleu-retalhuleu-airport/1ef266df-5cf0-6772-99c5-06bb2780ed98)
- [Flight duration calculator](/#calculator)