Nonstop flight route between Spearfish, South Dakota, United States and Alconbury, England, United Kingdom:

About this route:

A direct, nonstop flight between Black Hills Airport (SPF), Spearfish, South Dakota, United States and RAF AlconburyUSAAF Station 102 (AYH), Alconbury, England, United Kingdom would travel a Great Circle distance of 4,359 miles (or 7,014 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 Black Hills Airport and RAF AlconburyUSAAF Station 102, 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 Black Hills Airport and RAF AlconburyUSAAF Station 102. 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 Black Hills Airport (SPF):

• Black Hills Airport (SPF) has 4 runways.
• In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".
• The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.

Facts about RAF AlconburyUSAAF Station 102 (AYH):

• In October 1941 two of its flights with 16 Wellingtons were dispatched to operate from Malta, supposedly on an emergency detachment.
• In addition, two underground gasoline storage facilities, with a total capacity of 216,000 gallons were situated at points adjacent to the perimeter track, but at some distance from the explosive storage area.
• The furthest airport from RAF AlconburyUSAAF Station 102 (AYH) is Chatham Islands (CHT), which is located 11,821 miles (19,024 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The host unit at RAF Alconbury is the 423rd Air Base Group which supplies host unit services for Alconbury as well as RAF Molesworth.
• In the spring of 1938, the Air Ministry acquired about 150 acres of open meadowland at Alconbury Hill, Huntingdonshire, expressly for use as a satellite airfield.
• The construction attracted the attention of the Luftwaffe as the flying field of RAF Alconbury was attacked by German bombers on 16 September 1940, although no serious damage was done.
• The closest airport to RAF AlconburyUSAAF Station 102 (AYH) is Cambridge International Airport (CBG), which is located 20 miles (32 kilometers) ESE of AYH.
• The 501 CSW ensures United Kingdom-based air base groups are resourced, sustained, trained and equipped to exacting command standards in order to provide mission support that enables United States and NATO war fighters to conduct full spectrum flying operations during expeditionary deployments, theatre munitions movements, global command and control communications to forward deployed locations, support for theatre intelligence operations and joint/combined training.