Distance From Alton Airport to OR Tambo International Airport

The distance from Alton Airport () to OR Tambo International Airport (JNB) is 8861 miles or 14261 kilometers or 7695 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

---

How long does it take to travel from Alton ( United States ) to Johannesburg ( South Africa )?

A one-way nonstop (direct) flight between Alton and Johannesburg takes around 20 hours 22 minutes.

Estimated flight time from Alton Airport, Alton, United States to OR Tambo International Airport, Johannesburg, South Africa is 20 hours 22 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - JNB

Kilometers		14261 km
Statute Miles		8861 miles
Nautical Miles		7695 nm
Avg. Time of Flight		20 hours 22 minutes

Alton Airport to OR Tambo International Airport Flight Route Map - to JNB Flight Path

Location of Alton Airport & OR Tambo International Airport is given below.
Click the map to view Alton to Johannesburg nonstop flight path and travel direction.

Click to see flight route on Google Map between Alton, United States and Johannesburg, South Africa. .

Nonstop flight route between Alton, United States and Johannesburg, South Africa.

Time Difference Between the Airports • - JNB

Time difference between Alton (United States) and Johannesburg (South Africa) is 6 Hours.
Johannesburg time is 6 Hours ahead of Alton.

Location	Local Time
Alton (United States)	2026-09-17, 10:15:06 EDT
Johannesburg (South Africa)	2026-09-17, 16:15:06 SAST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Alton Airport ( / ) Alton, United States

Destination

OR Tambo International Airport (JNB / FAOR) Johannesburg, South Africa