# Distance from Mae Hong Son (PYY) to St Louis (STL)

> 13,488 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,488 km / 8,381 mi / 7,283 nm
- **Estimated flight time**: 17h
- **Heading**: 8° (north)
- **Return heading**: 350° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 05:07 in Mae Hong Son, it's 17:07 in St Louis)
- **Elevation difference**: 654 ft (STL is lower than PYY)

## Airports

### [Mae Hong Son Airport (PYY)](https://flightduration.online/airport/pyy-mae-hong-son-mae-hong-son-airport/1ef266df-f52d-653a-b36f-06bb2780ed98)

- City: Mae Hong Son, Thailand
- ICAO: VTCI
- Timezone: Asia/Bangkok
- Coordinates: 19.370000, 98.440000
- Elevation: 1,271 ft

### [St Louis Lambert International Airport (STL)](https://flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 05:07 in Mae Hong Son, it's 17:07 in St Louis.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Mae Hong Son Airport (PYY)](https://flightduration.online/airport/pyy-mae-hong-son-mae-hong-son-airport/1ef266df-f52d-653a-b36f-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)