Distance From Boeing Field King County International Airport to Adelaide International Airport, BFI - ADL Distance

The distance from Boeing Field King County International Airport (BFI) to Adelaide International Airport (ADL) is 8340 miles or 13422 kilometers or 7243 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 Seattle ( United States ) to Adelaide ( Australia )?

A one-way nonstop (direct) flight between Seattle and Adelaide takes around 19 hours 10 minutes.

Estimated flight time from Boeing Field King County International Airport, Seattle, United States to Adelaide International Airport, Adelaide, Australia is 19 hours 10 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 • BFI - ADL

Kilometers		13422 km
Statute Miles		8340 miles
Nautical Miles		7243 nm
Avg. Time of Flight		19 hours 10 minutes

Boeing Field King County International Airport to Adelaide International Airport Flight Route Map - BFI to ADL Flight Path

Location of Boeing Field King County International Airport & Adelaide International Airport is given below.
Click the map to view Seattle to Adelaide nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • BFI - ADL

Time difference between Seattle (United States) and Adelaide (Australia) is 16 Hours 30 Minutes.
Adelaide time is 16 Hours 30 Minutes ahead of Seattle.

Location	Local Time
Seattle (United States)	2026-03-20, 22:09:39 MDT
Adelaide (Australia)	2026-03-21, 14:39:39 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

Boeing Field King County International Airport (BFI / KBFI) Seattle, United States

Destination

Adelaide International Airport (ADL / YPAD) Adelaide, Australia