Distance From Simberi Airport to Roberts International Airport, NIS - ROB Distance

The distance from Simberi Airport (NIS) to Roberts International Airport (ROB) is 11197 miles or 18020 kilometers or 9724 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 Simberi Island ( Papua New Guinea ) to Monrovia ( Liberia )?

A one-way nonstop (direct) flight between Simberi Island and Monrovia takes around 25 hours 44 minutes.

Estimated flight time from Simberi Airport, Simberi Island, Papua New Guinea to Roberts International Airport, Monrovia, Liberia is 25 hours 44 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 • NIS - ROB

Kilometers		18020 km
Statute Miles		11197 miles
Nautical Miles		9724 nm
Avg. Time of Flight		25 hours 44 minutes

Simberi Airport to Roberts International Airport Flight Route Map - NIS to ROB Flight Path

Location of Simberi Airport & Roberts International Airport is given below.
Click the map to view Simberi Island to Monrovia nonstop flight path and travel direction.

Click to see flight route on Google Map between Simberi Island, Papua New Guinea and Monrovia, Liberia. .

Nonstop flight route between Simberi Island, Papua New Guinea and Monrovia, Liberia.

Time Difference Between the Airports • NIS - ROB

Time difference between Simberi Island (Papua New Guinea) and Monrovia (Liberia) is 11 Hours.
Monrovia time is 11 Hours behind Simberi Island.

Location	Local Time
Simberi Island (Papua New Guinea)	2026-10-27, 19:58:39 +11
Monrovia (Liberia)	2026-10-27, 08:58:39 GMT

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

Simberi Airport (NIS / AYSE) Simberi Island, Papua New Guinea

Destination

Roberts International Airport (ROB / GLRB) Monrovia, Liberia