Nonstop flight route between Chicago, Illinois, United States and Tallinn, Estonia:

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Tallinn Airport (TLL), Tallinn, Estonia would travel a Great Circle distance of 4,460 miles (or 7,177 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 Chicago O'Hare International Airport and Tallinn 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 Chicago O'Hare International Airport and Tallinn 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 Chicago O'Hare International Airport (ORD):

• Chicago O'Hare International Airport (ORD) has 8 runways.
• It is operated by the City of Chicago Department of Aviation.
• Ground was broken for the main terminal complex April 1, 1959.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare International 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.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• Delta moved from Terminal 3 to Terminal 2 in 2009 in order to align its operations with merger partner Northwest Airlines.
• In 2013, the Chicago Department of Aviation appropriated a $19,500 two-year contract to use livestock, specifically goats, sheep, llamas, and burros, to assist with grounds maintenance.
• Terminal 1 houses all United Airlines domestic flights as well as international departures, and also departures for a select number of Star Alliance partners, including Lufthansa and All Nippon Airways.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.

Facts about Tallinn Airport (TLL):

• In addition to being known as "Tallinn Airport", another name for TLL is "Tallinna lennujaam".
• There are one passenger terminal and four cargo terminals at the airport.
• Tallinn Airport (TLL) currently has only 1 runway.
• Between 1945 and 1989, Aeroflot was the only airline that served Tallinn Airport.
• The new terminal is intended for the service of one million passengers and the space liberated from low-cost airlines would pass into the disposition of Estonian Air and other traditional airlines, such as Lufthansa, SAS, LOT and Finnair.
• The closest airport to Tallinn Airport (TLL) is Helsinki-Malmi Airport (HEM), which is located 58 miles (94 kilometers) N of TLL.
• Because of Tallinn Airport's relatively low elevation of 131 feet, planes can take off or land at Tallinn 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.
• The furthest airport from Tallinn Airport (TLL) is Chatham Islands (CHT), which is located 11,037 miles (17,763 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In 2011 a new project of cruise turnarounds was launched in cooperation with Tallinn Passenger Port and Happy Cruises.