Distance From Happusan Tunnel Heliport to Osaka International Airport

The distance from Happusan Tunnel Heliport () to Osaka International Airport (ITM) is 204 miles or 329 kilometers or 178 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 Saku ( Japan ) to Osaka ( Japan )?

A one-way nonstop (direct) flight between Saku and Osaka takes around 0 hours 28 minutes.

Estimated flight time from Happusan Tunnel Heliport, Saku, Japan to Osaka International Airport, Osaka, Japan is 0 hours 28 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 • - ITM

Kilometers		329 km
Statute Miles		204 miles
Nautical Miles		178 nm
Avg. Time of Flight		0 hours 28 minutes

Happusan Tunnel Heliport to Osaka International Airport Flight Route Map - to ITM Flight Path

Location of Happusan Tunnel Heliport & Osaka International Airport is given below.
Click the map to view Saku to Osaka nonstop flight path and travel direction.

Click to see flight route on Google Map between Saku, Japan and Osaka, Japan. .

Nonstop flight route between Saku, Japan and Osaka, Japan.

Time Difference Between the Airports • - ITM

Time difference between Saku (Japan) and Osaka (Japan) is 0 Hours.

Location	Local Time
Saku (Japan)	2026-08-03, 16:25:21 JST
Osaka (Japan)	2026-08-03, 16:25:21 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

Happusan Tunnel Heliport ( / ) Saku, Japan

Destination

Osaka International Airport (ITM / RJOO) Osaka, Japan