Distance From Black Diamond Airport to Roberts International Airport

The distance from Black Diamond Airport () to Roberts International Airport (ROB) is 6890 miles or 11088 kilometers or 5983 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 Black Diamond ( United States ) to Monrovia ( Liberia )?

A one-way nonstop (direct) flight between Black Diamond and Monrovia takes around 15 hours 50 minutes.

Estimated flight time from Black Diamond Airport, Black Diamond, United States to Roberts International Airport, Monrovia, Liberia is 15 hours 50 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 • - ROB

Kilometers		11088 km
Statute Miles		6890 miles
Nautical Miles		5983 nm
Avg. Time of Flight		15 hours 50 minutes

Black Diamond Airport to Roberts International Airport Flight Route Map - to ROB Flight Path

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

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

Nonstop flight route between Black Diamond, United States and Monrovia, Liberia.

Time Difference Between the Airports • - ROB

Time difference between Black Diamond (United States) and Monrovia (Liberia) is 7 Hours.
Monrovia time is 7 Hours ahead of Black Diamond.

Location	Local Time
Black Diamond (United States)	2026-11-01, 11:43:35 MST
Monrovia (Liberia)	2026-11-01, 18:43:35 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

Black Diamond Airport ( / 95WA) Black Diamond, United States

Destination

Roberts International Airport (ROB / GLRB) Monrovia, Liberia