Distance From Port Graham Airport to Roberts International Airport, PGM - ROB Distance

The distance from Port Graham Airport (PGM) to Roberts International Airport (ROB) is 7437 miles or 11969 kilometers or 6459 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 Port Graham ( United States ) to Monrovia ( Liberia )?

A one-way nonstop (direct) flight between Port Graham and Monrovia takes around 17 hours 5 minutes.

Estimated flight time from Port Graham Airport, Port Graham, United States to Roberts International Airport, Monrovia, Liberia is 17 hours 5 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 • PGM - ROB

Kilometers		11969 km
Statute Miles		7437 miles
Nautical Miles		6459 nm
Avg. Time of Flight		17 hours 5 minutes

Port Graham Airport to Roberts International Airport Flight Route Map - PGM to ROB Flight Path

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

Click to see flight route on Google Map between Port Graham, United States and Monrovia, Liberia. .

Nonstop flight route between Port Graham, United States and Monrovia, Liberia.

Time Difference Between the Airports • PGM - ROB

Time difference between Port Graham (United States) and Monrovia (Liberia) is 9 Hours.
Monrovia time is 9 Hours ahead of Port Graham.

Location	Local Time
Port Graham (United States)	2025-12-14, 19:17:09 AKST
Monrovia (Liberia)	2025-12-15, 04:17:09 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

Port Graham Airport (PGM / PGM) Port Graham, United States

Destination

Roberts International Airport (ROB / GLRB) Monrovia, Liberia