# Distance from St Louis (STL) to Tengah Air Base (TGA)

> 15,325 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,325 km / 9,522 mi / 8,275 nm
- **Estimated flight time**: 19h
- **Heading**: 339° (north northwest)
- **Return heading**: 16° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Singapore
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 16:25 in St Louis, it's 05:25 in Tengah Air Base)
- **Elevation difference**: 567 ft (TGA 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

### [Tengah Air Base (TGA)](https://www.flightduration.online/airport/tga-tengah-air-base/1ef266e0-00c1-6ca2-8d5f-06bb2780ed98)

- City: Tengah Air Base, Singapore
- ICAO: WSAT
- Timezone: Asia/Singapore
- Coordinates: 1.390000, 103.710000
- Elevation: 50 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 16:25 in St Louis, it's 05:25 in Tengah Air Base.
With a 13-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)
- [Tengah Air Base (TGA)](https://www.flightduration.online/airport/tga-tengah-air-base/1ef266e0-00c1-6ca2-8d5f-06bb2780ed98)
- [Flight duration calculator](/#calculator)