# Distance from St Louis (STL) to Surat Thani (URT)

> 14,601 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,601 km / 9,072 mi / 7,884 nm
- **Estimated flight time**: 18h
- **Heading**: 347° (north northwest)
- **Return heading**: 10° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 02:34 in St Louis, it's 14:34 in Surat Thani)
- **Elevation difference**: 597 ft (URT is lower than STL)

## Airports

### [St Louis Lambert International Airport (STL)](https://www.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

### [Surat Thani Airport (URT)](https://www.flightduration.online/airport/urt-surat-thani-surat-thani-airport/1ef266df-f586-61da-872e-06bb2780ed98)

- City: Surat Thani, Thailand
- ICAO: VTSB
- Timezone: Asia/Bangkok
- Coordinates: 9.130000, 99.140000
- Elevation: 20 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 02:34 in St Louis, it's 14:34 in Surat Thani.
With a 12-hour time difference, expect significant jet lag.

## Related

- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Surat Thani Airport (URT)](https://www.flightduration.online/airport/urt-surat-thani-surat-thani-airport/1ef266df-f586-61da-872e-06bb2780ed98)
- [Flight duration calculator](/#calculator)