Distance From Green Bank Observatory Airport to Francisco de Sá Carneiro Airport

The distance from Green Bank Observatory Airport () to Francisco de Sá Carneiro Airport (OPO) is 3670 miles or 5907 kilometers or 3187 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 Green Bank ( United States ) to Porto ( Portugal )?

A one-way nonstop (direct) flight between Green Bank and Porto takes around 8 hours 26 minutes.

Estimated flight time from Green Bank Observatory Airport, Green Bank, United States to Francisco de Sá Carneiro Airport, Porto, Portugal is 8 hours 26 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 • - OPO

Kilometers		5907 km
Statute Miles		3670 miles
Nautical Miles		3187 nm
Avg. Time of Flight		8 hours 26 minutes

Green Bank Observatory Airport to Francisco de Sá Carneiro Airport Flight Route Map - to OPO Flight Path

Location of Green Bank Observatory Airport & Francisco de Sá Carneiro Airport is given below.
Click the map to view Green Bank to Porto nonstop flight path and travel direction.

Click to see flight route on Google Map between Green Bank, United States and Porto, Portugal. .

Nonstop flight route between Green Bank, United States and Porto, Portugal.

Time Difference Between the Airports • - OPO

Time difference between Green Bank (United States) and Porto (Portugal) is 5 Hours.
Porto time is 5 Hours ahead of Green Bank.

Location	Local Time
Green Bank (United States)	2025-12-14, 08:36:20 EST
Porto (Portugal)	2025-12-14, 13:36:20 WET

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

Green Bank Observatory Airport ( / WV52) Green Bank, United States

Destination

Francisco de Sá Carneiro Airport (OPO / LPPR) Porto, Portugal