# Distance from Alton/St Louis (ALN) to Cape Town (CPT)

> 13,773 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,773 km / 8,558 mi / 7,437 nm
- **Estimated flight time**: 17h
- **Heading**: 109° (east southeast)
- **Return heading**: 297° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → South Africa
- **Intercontinental**: North America → Africa
- **Time difference**: +7h (When it's 09:22 in Alton/St Louis, it's 16:22 in Cape Town)
- **Elevation difference**: 393 ft (CPT is lower than ALN)

## Airports

### [St Louis Regional Airport (ALN)](https://www.flightduration.online/airport/aln-altonst-louis-st-louis-regional-airport/1ef266df-0e15-6d96-bfee-06bb2780ed98)

- City: Alton/St Louis, United States
- ICAO: KALN
- Timezone: America/Chicago
- Coordinates: 38.890000, -90.050000
- Elevation: 544 ft

### [Cape Town International Airport (CPT)](https://www.flightduration.online/airport/cpt-cape-town-cape-town-international-airport/1ef266de-d135-6d22-8a64-06bb2780ed98)

- City: Cape Town, South Africa
- ICAO: FACT
- Timezone: Africa/Johannesburg
- Coordinates: -33.960000, 18.600000
- Elevation: 151 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 09:22 in Alton/St Louis, it's 16:22 in Cape Town.
With a 7-hour time difference, expect significant jet lag.

## Related

- [St Louis Regional Airport (ALN)](https://www.flightduration.online/airport/aln-altonst-louis-st-louis-regional-airport/1ef266df-0e15-6d96-bfee-06bb2780ed98)
- [Cape Town International Airport (CPT)](https://www.flightduration.online/airport/cpt-cape-town-cape-town-international-airport/1ef266de-d135-6d22-8a64-06bb2780ed98)
- [Flight duration calculator](/#calculator)