Nonstop flight route between Hamadan, Iran and Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between Hamadan Airport (HDM), Hamadan, Iran and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 6,455 miles (or 10,388 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 Hamadan Airport and Chicago O'Hare International 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 Hamadan Airport and Chicago O'Hare International 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 Hamadan Airport (HDM):

• The furthest airport from Hamadan Airport (HDM) is Totegegie Airport (GMR), which is located 11,597 miles (18,663 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
• Hamadan Airport (HDM) currently has only 1 runway.
• Because of Hamadan Airport's high elevation of 5,755 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDM. Combined with a high temperature, this could make HDM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The closest airport to Hamadan Airport (HDM) is Shahid Ashrafi Esfahani Airport (KSH), which is located 87 miles (140 kilometers) WSW of HDM.

Facts about Chicago O'Hare International Airport (ORD):

• Due to the construction of Terminal 1 for United, international flights were relocated to a temporary Terminal 4 from 1984 until 1993.
• 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 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.
• By the early 1950s, Chicago Midway International Airport, Chicago's primary airport since 1931, had become too crowded despite multiple expansions and could not handle the planned first generation of jets.
• Terminal 1 houses All Nippon Airways's Chicago office.
• 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.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• The original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.