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

About this route:

A direct, nonstop flight between McChord Field/McChord AFB (TCM), Tacoma, Washington, United States and St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom would travel a Great Circle distance of 4,729 miles (or 7,610 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 McChord Field/McChord AFB and St Mary's 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 McChord Field/McChord AFB and St Mary's 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 McChord Field/McChord AFB (TCM):

• In 1991, Clark Air Base in the Philippines was evacuated due to the eruption of Mount Pinatubo.
• The closest airport to McChord Field/McChord AFB (TCM) is Gray Army Airfield (GRF), which is located only 6 miles (10 kilometers) SW of TCM.
• Because of McChord Field/McChord AFB's relatively low elevation of 322 feet, planes can take off or land at McChord Field/McChord AFB 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.
• McChord also had large maintenance facilities for Air Technical Service Command during the war, serving served as a P-39 Aircobra modification center April 1944 – May 1945 for lend-lease aircraft being sent to Russia via the Alaska Territory.
• SeADS was inactivated on 1 April 1966 and the SAGE headquarters combat center came under the 25th Air Division.
• In addition to being known as "McChord Field/McChord AFB", another name for TCM is "Part of Air Mobility Command (AMC)".
• The furthest airport from McChord Field/McChord AFB (TCM) is Tôlanaro Airport (FTU), which is located 10,803 miles (17,386 kilometers) away in Tôlanaro, Madagascar.
• In 1958, a Semi Automatic Ground Environment Data Center, and Combat Center was established at McChord.
• McChord Field/McChord AFB (TCM) has 2 runways.
• The 325th Fighter Group operated two squadrons of F-82F Twin Mustangs from McChord between 1948 and 1950, the first postwar fighter optimized for the air defense interceptor mission.

Facts about St Mary's Airport (ISC):

• After being in operation for 48 years, the helicopter service between St Mary's and the mainland UK ceased operations in October 2012, leaving Skybus as the sole remaining air link for the Isles of Scilly.
• 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 current 600m asphalt runway, 15/33, was built in 1991.
• 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.
• In 1975, a new terminal was opened by the then incumbent Prime Minister Harold Wilson.
• 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".
• St Mary's Airport or Isles of Scilly Airport is an airport located 1 nautical mile east of Hugh Town on St Mary's in the Isles of Scilly, to the south west of Cornwall, UK.
• St Mary's Airport handled 89,170 passengers last year.
• 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.
• On 15 September 1937, Olley Air Service's subsidiary Channel Air Ferries started the first scheduled service between Land's End and St Mary's, flying de Havilland Dragons.
• St Mary's Airport (ISC) has 2 runways.