Distance From Duncan Airport to Sendai Airport

The distance from Duncan Airport () to Sendai Airport (SDJ) is 5049 miles or 8125 kilometers or 4384 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 Helena ( United States ) to Natori ( Japan )?

A one-way nonstop (direct) flight between Helena and Natori takes around 11 hours 36 minutes.

Estimated flight time from Duncan Airport, Helena, United States to Sendai Airport, Natori, Japan is 11 hours 36 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 • - SDJ

Kilometers		8125 km
Statute Miles		5049 miles
Nautical Miles		4384 nm
Avg. Time of Flight		11 hours 36 minutes

Duncan Airport to Sendai Airport Flight Route Map - to SDJ Flight Path

Location of Duncan Airport & Sendai Airport is given below.
Click the map to view Helena to Natori nonstop flight path and travel direction.

Click to see flight route on Google Map between Helena, United States and Natori, Japan. .

Nonstop flight route between Helena, United States and Natori, Japan.

Time Difference Between the Airports • - SDJ

Time difference between Helena (United States) and Natori (Japan) is 16 Hours.
Natori time is 16 Hours ahead of Helena.

Location	Local Time
Helena (United States)	2025-01-15, 09:22:20 MST
Natori (Japan)	2025-01-16, 01:22:20 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

Duncan Airport ( / MT06) Helena, United States

Destination

Sendai Airport (SDJ / RJSS) Natori, Japan