Nonstop flight route between Saint Petersburg, Russia (formerly Leningrad between 1924 and 1991) and Udon Thani, Thailand:

About this route:

A direct, nonstop flight between Pulkovo Airport (LED), Saint Petersburg, Russia (formerly Leningrad between 1924 and 1991) and Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH), Udon Thani, Thailand would travel a Great Circle distance of 4,579 miles (or 7,369 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 Pulkovo Airport and Udon Thani International Airport ท่าอากาศยานอุดรธานี, 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 Pulkovo Airport and Udon Thani International Airport ท่าอากาศยานอุดรธานี. 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 Pulkovo Airport (LED):

• ICAO category 1 standards were implemented in 1965, making way for international operations.
• In the near term, Pulkovo strategically focuses on its master plan until 2025 that calls for massive modernization of the entire airport infrastructure.
• The furthest airport from Pulkovo Airport (LED) is Chatham Islands (CHT), which is located 10,868 miles (17,491 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to Pulkovo Airport (LED) is Rzhevka Airport (RVH), which is located only 17 miles (27 kilometers) NE of LED.
• Because of Pulkovo Airport's relatively low elevation of 79 feet, planes can take off or land at Pulkovo 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.
• Pulkovo Airport (LED) has 2 runways.
• Pulkovo Airport handled 12,854,366 passengers last year.
• In addition to being known as "Pulkovo Airport", another name for LED is "Аэропо́рт Пу́лково".

Facts about Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH):

• The furthest airport from Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) is Maria Reiche Neuman Airport (NZC), which is nearly antipodal to Udon Thani International Airport ท่าอากาศยานอุดรธานี (meaning Udon Thani International Airport ท่าอากาศยานอุดรธานี is almost on the exact opposite side of the Earth from Maria Reiche Neuman Airport), and is located 12,207 miles (19,645 kilometers) away in Nazca, Ica Region, Peru.
• The closest airport to Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) is Wattay International Airport (VTE), which is located 44 miles (71 kilometers) NNW of UTH.
• Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) currently has only 1 runway.
• 231 Squadron flies 17 Dassault-Breguet-Dornier Alpha Jet A airplanes acquired second hand from the German Air Force and delivered in 2001.
• During the Vietnam War the facility was known as Udorn Royal Thai Air Force Base, serving as a front-line base of the United States Air Force and was the Asian Headquarters for Air America.
• Because of Udon Thani International Airport ท่าอากาศยานอุดรธานี's relatively low elevation of 579 feet, planes can take off or land at Udon Thani International Airport ท่าอากาศยานอุดรธานี 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.
• Udon Thani International Airport is an airport located near the city of Udon Thani in Udon Thani Province in the northeast region of Thailand.