Distance From Johnston County Airport to Naha Airport / JASDF Naha Air Base

The distance from Johnston County Airport () to Naha Airport / JASDF Naha Air Base (OKA) is 7845 miles or 12625 kilometers or 6813 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 Smithfield ( United States ) to Naha ( Japan )?

A one-way nonstop (direct) flight between Smithfield and Naha takes around 18 hours 2 minutes.

Estimated flight time from Johnston County Airport, Smithfield, United States to Naha Airport / JASDF Naha Air Base, Naha, Japan is 18 hours 2 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 • - OKA

Kilometers		12625 km
Statute Miles		7845 miles
Nautical Miles		6813 nm
Avg. Time of Flight		18 hours 2 minutes

Johnston County Airport to Naha Airport / JASDF Naha Air Base Flight Route Map - to OKA Flight Path

Location of Johnston County Airport & Naha Airport / JASDF Naha Air Base is given below.
Click the map to view Smithfield to Naha nonstop flight path and travel direction.

Click to see flight route on Google Map between Smithfield, United States and Naha, Japan. .

Nonstop flight route between Smithfield, United States and Naha, Japan.

Time Difference Between the Airports • - OKA

Time difference between Smithfield (United States) and Naha (Japan) is 13 Hours.
Naha time is 13 Hours ahead of Smithfield.

Location	Local Time
Smithfield (United States)	2026-03-18, 19:06:47 EDT
Naha (Japan)	2026-03-19, 08:06:47 JST

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

Johnston County Airport ( / KJNX) Smithfield, United States

Destination

Naha Airport / JASDF Naha Air Base (OKA / ROAH) Naha, Japan