Distance From Ulsan Airport to Louisville Muhammad Ali International Airport, USN - SDF Distance

The distance from Ulsan Airport (USN) to Louisville Muhammad Ali International Airport (SDF) is 6868 miles or 11053 kilometers or 5964 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 Louisville ( United States )?

A one-way nonstop (direct) flight between Ulsan and Louisville takes around 15 hours 47 minutes.

Estimated flight time from Ulsan Airport, Ulsan, South Korea to Louisville Muhammad Ali International Airport, Louisville, United States is 15 hours 47 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 - SDF

Kilometers		11053 km
Statute Miles		6868 miles
Nautical Miles		5964 nm
Avg. Time of Flight		15 hours 47 minutes

Ulsan Airport to Louisville Muhammad Ali International Airport Flight Route Map - USN to SDF Flight Path

Location of Ulsan Airport & Louisville Muhammad Ali International Airport is given below.
Click the map to view Ulsan to Louisville nonstop flight path and travel direction.

Click to see flight route on Google Map between Ulsan, South Korea and Louisville, United States. .

Nonstop flight route between Ulsan, South Korea and Louisville, United States.

Time Difference Between the Airports • USN - SDF

Time difference between Ulsan (South Korea) and Louisville (United States) is 13 Hours.
Louisville time is 13 Hours behind Ulsan.

Location	Local Time
Ulsan (South Korea)	2026-05-01, 15:12:14 KST
Louisville (United States)	2026-05-01, 02:12:14 EDT

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

Louisville Muhammad Ali International Airport (SDF / KSDF) Louisville, United States