Nonstop flight route between St Mary's, Isles of Scilly, United Kingdom and Portsmouth, Ohio, United States:

About this route:

A direct, nonstop flight between St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom and Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States would travel a Great Circle distance of 3,689 miles (or 5,936 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 St Mary's Airport and Greater Portsmouth Regional Airport, 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 St Mary's Airport and Greater Portsmouth Regional Airport. 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 St Mary's Airport (ISC):

• On 2 May 1964, BEA replaced its Dragon Rapides on the Land's End route with a single Sikorsky S-61 helicopter, operated by BEA Helicopters.
• A public footpath passes within a few metres of the southern end of the runway.
• St Mary's Airport (ISC) has 2 runways.
• In addition to being known as "St Mary's Airport", other names for ISC include "Isles of Scilly Airport" and "Scilly Isles/St Mary's Airport".
• In 1984 Isles of Scilly Skybus started flights to St Mary's from Land's End, initially freight and charter.
• St Mary's Airport handled 89,170 passengers last year.
• Because of St Mary's Airport's relatively low elevation of 116 feet, planes can take off or land at St Mary's 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 St Mary's Airport (ISC) is Tresco Heliport (TSO), which is located only 3 miles (5 kilometers) NW of ISC.
• The furthest airport from St Mary's Airport (ISC) is Dunedin International Airport (DUD), which is nearly antipodal to St Mary's Airport (meaning St Mary's Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,117 miles (19,501 kilometers) away in Dunedin, Otago, New Zealand.

Facts about Greater Portsmouth Regional Airport (PMH):

• Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
• The airport offers fuel services along with a small snack bar, a couple of hangars, mechanics, and pilot snooze room.
• Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth Regional 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 Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
• The furthest airport from Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.