Nonstop flight route between Xining, Qinghai, China and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Xining Caojiabao Airport (XNN), Xining, Qinghai, China and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,054 miles (or 6,524 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 Xining Caojiabao Airport and Sofia Airport Vrazhdebna, 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 Xining Caojiabao Airport and Sofia Airport Vrazhdebna. 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 Xining Caojiabao Airport (XNN):

• Because of Xining Caojiabao Airport's high elevation of 7,119 feet, planes must typically fly at a faster airspeed in order to takeoff or land at XNN. Combined with a high temperature, this could make XNN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Xining Caojiabao Airport (XNN) is Carriel Sur International Airport (CCP), which is nearly antipodal to Xining Caojiabao Airport (meaning Xining Caojiabao Airport is almost on the exact opposite side of the Earth from Carriel Sur International Airport), and is located 12,165 miles (19,578 kilometers) away in Concepción, Bío Bío Region, Chile.
• Xining Caojiabao Airport (XNN) currently has only 1 runway.
• The closest airport to Xining Caojiabao Airport (XNN) is Lanzhou Zhongchuan Airport (LHW), which is located 88 miles (141 kilometers) E of XNN.
• In addition to being known as "Xining Caojiabao Airport", other names for XNN include "西宁曹家堡机场" and "Xīníng Cáojiābǎo Jīchǎng".
• Xining Caojiabao Airport handled 2,030,378 passengers last year.

Facts about Sofia Airport Vrazhdebna (SOF):

• 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.
• The passenger terminal building is designed with a capacity of 2,000 peak hour passengers or up to 2.6 million passengers a year, plus 26,000 tonnes of luggage.
• Total cost of the project was planned at 200 million euros.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.
• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• 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.
• The project for the construction of a new airport control tower at Sofia Airport commenced on 16 June 2006 with a decision of the BULATSA Management Board.