Distance From Portland Hillsboro Airport to Adelaide International Airport, HIO - ADL Distance

The distance from Portland Hillsboro Airport (HIO) to Adelaide International Airport (ADL) is 8263 miles or 13298 kilometers or 7176 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 Portland ( United States ) to Adelaide ( Australia )?

A one-way nonstop (direct) flight between Portland and Adelaide takes around 18 hours 59 minutes.

Estimated flight time from Portland Hillsboro Airport, Portland, United States to Adelaide International Airport, Adelaide, Australia is 18 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 • HIO - ADL

Kilometers		13298 km
Statute Miles		8263 miles
Nautical Miles		7176 nm
Avg. Time of Flight		18 hours 59 minutes

Portland Hillsboro Airport to Adelaide International Airport Flight Route Map - HIO to ADL Flight Path

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

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

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

Time Difference Between the Airports • HIO - ADL

Time difference between Portland (United States) and Adelaide (Australia) is 17 Hours 30 Minutes.
Adelaide time is 17 Hours 30 Minutes ahead of Portland.

Location	Local Time
Portland (United States)	2025-12-05, 05:14:25 MST
Adelaide (Australia)	2025-12-05, 22:44:25 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

Portland Hillsboro Airport (HIO / KHIO) Portland, United States

Destination

Adelaide International Airport (ADL / YPAD) Adelaide, Australia