Nonstop flight route between Sofia, Bulgaria and Sault Ste. Marie, Michigan, United States:

About this route:

A direct, nonstop flight between Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria and Kincheloe Air Force Base (INR), Sault Ste. Marie, Michigan, United States would travel a Great Circle distance of 4,871 miles (or 7,839 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 Sofia Airport Vrazhdebna and Kincheloe Air Force Base, 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 Sofia Airport Vrazhdebna and Kincheloe Air Force Base. 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 Sofia Airport Vrazhdebna (SOF):

• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.
• The furthest airport from Sofia Airport Vrazhdebna (SOF) is Chatham Islands (CHT), which is located 11,437 miles (18,405 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• A significant and recurring operational criticism of Sofia Airport has concerned its historical lack of all-weather operations capability.
• Service life of the new airport control tower will be more than 40 years and is designed to serve the airport with a possible extension.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• The initial completion deadline for the new terminal was 15 December 2004 to a total budget of 112.2 million euro.
• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.

Facts about Kincheloe Air Force Base (INR):

• Flying out of Kinross in 1953, pilot Felix Moncla and his plane disappeared while pursuing a UFO over the Soo Locks and Lake Superior.
• The 4239th Strategic Wing was inactivated as the 449th Bombardment Wing was activated on 15 Nov 1962 and organized on 1 February 1963, assigned to SAC's Second Air Force, 40th Air Division.
• After the war, the airfield then served as a hub for private and commercial aviation.
• During World War II, the Soo Locks were considered vital to the war efforts.
• The closest airport to Kincheloe Air Force Base (INR) is Chippewa County International Airport (CIU), which is located only 0 mile (0 kilometer) N of INR.
• The furthest airport from Kincheloe Air Force Base (INR) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
• On 16 February 1953, the first operational ADC unit, the 534th Air Defense Group was activated at Kinross AFB.
• The importance of Kincheloe AFB to ADC was evident in 1960 with some major changes.
• On 2 February 1959, Strategic Air Command established the 4239th Strategic Wing at Kincheloe AFB, Michigan as part of SAC's plan to disburse its B-52 Stratofortress heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.