Distance From Patuxent River Naval Air Station (Trapnell Field) to Roberts International Airport, NHK - ROB Distance

The distance from Patuxent River Naval Air Station (Trapnell Field) (NHK) to Roberts International Airport (ROB) is 4658 miles or 7496 kilometers or 4045 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 Patuxent River ( United States ) to Monrovia ( Liberia )?

A one-way nonstop (direct) flight between Patuxent River and Monrovia takes around 10 hours 42 minutes.

Estimated flight time from Patuxent River Naval Air Station (Trapnell Field), Patuxent River, United States to Roberts International Airport, Monrovia, Liberia is 10 hours 42 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 • NHK - ROB

Kilometers		7496 km
Statute Miles		4658 miles
Nautical Miles		4045 nm
Avg. Time of Flight		10 hours 42 minutes

Patuxent River Naval Air Station (Trapnell Field) to Roberts International Airport Flight Route Map - NHK to ROB Flight Path

Location of Patuxent River Naval Air Station (Trapnell Field) & Roberts International Airport is given below.
Click the map to view Patuxent River to Monrovia nonstop flight path and travel direction.

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

Nonstop flight route between Patuxent River, United States and Monrovia, Liberia.

Time Difference Between the Airports • NHK - ROB

Time difference between Patuxent River (United States) and Monrovia (Liberia) is 4 Hours.
Monrovia time is 4 Hours ahead of Patuxent River.

Location	Local Time
Patuxent River (United States)	2026-03-19, 14:49:37 EDT
Monrovia (Liberia)	2026-03-19, 18:49:37 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

Patuxent River Naval Air Station (Trapnell Field) (NHK / KNHK) Patuxent River, United States

Destination

Roberts International Airport (ROB / GLRB) Monrovia, Liberia