Distance From Ulsan Airport to OR Tambo International Airport, USN - JNB Distance

The distance from Ulsan Airport (USN) to OR Tambo International Airport (JNB) is 7835 miles or 12609 kilometers or 6804 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.

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How long does it take to travel from Ulsan ( South Korea ) to Johannesburg ( South Africa )?

A one-way nonstop (direct) flight between Ulsan and Johannesburg takes around 18 hours 0 minutes.

Estimated flight time from Ulsan Airport, Ulsan, South Korea to OR Tambo International Airport, Johannesburg, South Africa is 18 hours 0 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 • USN - JNB

Kilometers		12609 km
Statute Miles		7835 miles
Nautical Miles		6804 nm
Avg. Time of Flight		18 hours 0 minutes

Ulsan Airport to OR Tambo International Airport Flight Route Map - USN to JNB Flight Path

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

Click to see flight route on Google Map between Ulsan, South Korea and Johannesburg, South Africa. .

Nonstop flight route between Ulsan, South Korea and Johannesburg, South Africa.

Time Difference Between the Airports • USN - JNB

Time difference between Ulsan (South Korea) and Johannesburg (South Africa) is 7 Hours.
Johannesburg time is 7 Hours behind Ulsan.

Location	Local Time
Ulsan (South Korea)	2026-03-19, 08:20:01 KST
Johannesburg (South Africa)	2026-03-19, 01:20:01 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

Ulsan Airport (USN / RKPU) Ulsan, South Korea

Destination

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