The distance from Knox Community Hospital Helipad () to Francisco de Sá Carneiro Airport (OPO) is 3733 miles or 6008 kilometers or 3242 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.
6008 kilometers is the direct flight distance between Knox Community Hospital Helipad (United States) and Francisco de Sá Carneiro Airport (Portugal).
How long does it take to travel from Mount Vernon ( United States ) to Porto ( Portugal )?
A one-way nonstop (direct) flight between Mount Vernon and Porto takes around 8 hours 34 minutes.
Estimated
flight time from Knox Community Hospital Helipad, Mount Vernon, United States to Francisco de Sá Carneiro Airport, Porto, Portugal is
8 hours 34 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 | | 6008 km |
| Statute Miles | | 3733 miles |
| Nautical Miles | | 3242 nm |
| Avg. Time of Flight | | 8 hours 34 minutes |
Knox Community Hospital Helipad to Francisco de Sá Carneiro Airport Flight Route Map - to OPO Flight Path
Location of Knox Community Hospital Helipad & Francisco de Sá Carneiro Airport is given below.
Click the map to view Mount Vernon to Porto nonstop flight path and travel direction.
Click to see flight route on Google Map between Mount Vernon, United States and Porto, Portugal. .
Nonstop flight route between Mount Vernon, United States and Porto, Portugal.
Time Difference Between the Airports • - OPO
Time difference between
Mount Vernon (United States) and
Porto (Portugal) is 5 Hours.
Porto time is 5 Hours ahead of Mount Vernon.
| Location | Local Time |
| Mount Vernon (United States) | 2026-05-07, 12:02:41 EDT |
| Porto (Portugal) | 2026-05-07, 17:02:41 WEST |
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.