Nonstop flight route between Old Harbor, Alaska, United States and Portsmouth, New Hampshire, United States:

About this route:

A direct, nonstop flight between Old Harbor Airport (OLH), Old Harbor, Alaska, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 3,540 miles (or 5,696 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Old Harbor Airport and Portsmouth International Airport at Pease, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Old Harbor Airport and Portsmouth International Airport at Pease. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Old Harbor Airport (OLH):

• In addition to being known as "Old Harbor Airport", another name for OLH is "6R7".
• Old Harbor Airport (OLH) currently has only 1 runway.
• Because of Old Harbor Airport's relatively low elevation of 55 feet, planes can take off or land at Old Harbor Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The closest airport to Old Harbor Airport (OLH) is Amook Bay Seaplane Base (AOS), which is located 27 miles (43 kilometers) NW of OLH.
• The furthest airport from Old Harbor Airport (OLH) is Port Elizabeth International Airport (PLZ), which is located 10,831 miles (17,430 kilometers) away in Port Elizabeth, South Africa.

Facts about Portsmouth International Airport at Pease (PSM):

• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
• The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
• The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.