# Distance from Helena (HLN) to Ho Chi Minh City (SGN)

> 12,565 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,565 km / 7,807 mi / 6,784 nm
- **Estimated flight time**: 16h
- **Heading**: 318° (northwest)
- **Return heading**: 28° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 07:51 in Helena, it's 20:51 in Ho Chi Minh City)
- **Elevation difference**: 3,844 ft (SGN is lower than HLN)

## Airports

### [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98)

- City: Helena, United States
- ICAO: KHLN
- Timezone: America/Denver
- Coordinates: 46.610000, -111.980000
- Elevation: 3,877 ft

### [Tan Son Nhat International Airport (SGN)](https://www.flightduration.online/airport/sgn-ho-chi-minh-city-tan-son-nhat-international-airport/1ef266df-f661-676c-851b-06bb2780ed98)

- City: Ho Chi Minh City, Vietnam
- ICAO: VVTS
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 10.820000, 106.650000
- Elevation: 33 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 07:51 in Helena, it's 20:51 in Ho Chi Minh City.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98)
- [Tan Son Nhat International Airport (SGN)](https://www.flightduration.online/airport/sgn-ho-chi-minh-city-tan-son-nhat-international-airport/1ef266df-f661-676c-851b-06bb2780ed98)
- [Flight duration calculator](/#calculator)