Distance From Boone County Airport to Adelaide International Airport, HRO - ADL Distance

The distance from Boone County Airport (HRO) to Adelaide International Airport (ADL) is 9567 miles or 15396 kilometers or 8308 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 Harrison ( United States ) to Adelaide ( Australia )?

A one-way nonstop (direct) flight between Harrison and Adelaide takes around 21 hours 59 minutes.

Estimated flight time from Boone County Airport, Harrison, United States to Adelaide International Airport, Adelaide, Australia is 21 hours 59 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 • HRO - ADL

Kilometers		15396 km
Statute Miles		9567 miles
Nautical Miles		8308 nm
Avg. Time of Flight		21 hours 59 minutes

Boone County Airport to Adelaide International Airport Flight Route Map - HRO to ADL Flight Path

Location of Boone County Airport & Adelaide International Airport is given below.
Click the map to view Harrison to Adelaide nonstop flight path and travel direction.

Click to see flight route on Google Map between Harrison, United States and Adelaide, Australia. .

Nonstop flight route between Harrison, United States and Adelaide, Australia.

Time Difference Between the Airports • HRO - ADL

Time difference between Harrison (United States) and Adelaide (Australia) is 15 Hours 30 Minutes.
Adelaide time is 15 Hours 30 Minutes ahead of Harrison.

Location	Local Time
Harrison (United States)	2025-12-15, 02:26:59 EST
Adelaide (Australia)	2025-12-15, 17:56:59 ACDT

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

Boone County Airport (HRO / KHRO) Harrison, United States

Destination

Adelaide International Airport (ADL / YPAD) Adelaide, Australia