The distance from Palomar Observatory Road Helipad () to Adelaide International Airport (ADL) is 8235 miles or 13252 kilometers or 7151 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.
13252 kilometers is the direct flight distance between Palomar Observatory Road Helipad (United States) and Adelaide International Airport (Australia).
How long does it take to travel from Palomar Mountain ( United States ) to Adelaide ( Australia )?
A one-way nonstop (direct) flight between Palomar Mountain and Adelaide takes around 18 hours 55 minutes.
Estimated
flight time from Palomar Observatory Road Helipad, Palomar Mountain, United States to Adelaide International Airport, Adelaide, Australia is
18 hours 55 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 • - ADL
| Kilometers | | 13252 km |
| Statute Miles | | 8235 miles |
| Nautical Miles | | 7151 nm |
| Avg. Time of Flight | | 18 hours 55 minutes |
Palomar Observatory Road Helipad to Adelaide International Airport Flight Route Map - to ADL Flight Path
Location of Palomar Observatory Road Helipad & Adelaide International Airport is given below.
Click the map to view Palomar Mountain to Adelaide nonstop flight path and travel direction.
Click to see flight route on Google Map between Palomar Mountain, United States and Adelaide, Australia. .
Nonstop flight route between Palomar Mountain, United States and Adelaide, Australia.
Time Difference Between the Airports • - ADL
Time difference between
Palomar Mountain (United States) and
Adelaide (Australia) is 18 Hours 30 Minutes.
Adelaide time is 18 Hours 30 Minutes ahead of Palomar Mountain.
| Location | Local Time |
| Palomar Mountain (United States) | 2025-12-14, 23:42:18 PST |
| Adelaide (Australia) | 2025-12-15, 18:12:18 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.