Distance From Hot Springs County Airport to Sydney Kingsford Smith International Airport, THP - SYD Distance

The distance from Hot Springs County Airport (THP) to Sydney Kingsford Smith International Airport (SYD) is 8266 miles or 13303 kilometers or 7178 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 Thermopolis ( United States ) to Sydney ( Australia )?

A one-way nonstop (direct) flight between Thermopolis and Sydney takes around 19 hours 0 minutes.

Estimated flight time from Hot Springs County Airport, Thermopolis, United States to Sydney Kingsford Smith International Airport, Sydney, Australia is 19 hours 0 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 • THP - SYD

Kilometers		13303 km
Statute Miles		8266 miles
Nautical Miles		7178 nm
Avg. Time of Flight		19 hours 0 minutes

Hot Springs County Airport to Sydney Kingsford Smith International Airport Flight Route Map - THP to SYD Flight Path

Location of Hot Springs County Airport & Sydney Kingsford Smith International Airport is given below.
Click the map to view Thermopolis to Sydney nonstop flight path and travel direction.

Click to see flight route on Google Map between Thermopolis, United States and Sydney, Australia. .

Nonstop flight route between Thermopolis, United States and Sydney, Australia.

Time Difference Between the Airports • THP - SYD

Time difference between Thermopolis (United States) and Sydney (Australia) is 18 Hours.
Sydney time is 18 Hours ahead of Thermopolis.

Location	Local Time
Thermopolis (United States)	2025-12-14, 04:40:21 MST
Sydney (Australia)	2025-12-14, 22:40:21 AEDT

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

Hot Springs County Airport (THP / KHSG) Thermopolis, United States

Destination

Sydney Kingsford Smith International Airport (SYD / YSSY) Sydney, Australia