Nonstop flight route between Dezful, Iran and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from DEF to SDY:
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- About this route
- DEF Airport Information
- SDY Airport Information
- Facts about DEF
- Facts about SDY
- Map of Nearest Airports to DEF
- List of Nearest Airports to DEF
- Map of Furthest Airports from DEF
- List of Furthest Airports from DEF
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Dezful Airport (DEF), Dezful, Iran and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 6,645 miles (or 10,693 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 Dezful Airport and Sidney-Richland Municipal 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 Dezful Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | DEF / OIAD |
Airport Name: | Dezful Airport |
Location: | Dezful, Iran |
GPS Coordinates: | 32°26'3"N by 48°23'51"E |
Airport Type: | Military |
# of Runways: | 2 |
View all routes: | Routes from DEF |
More Information: | DEF Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Facts about Dezful Airport (DEF):
- Dezful Airport (DEF) has 2 runways.
- The closest airport to Dezful Airport (DEF) is Khorramabad Airport (KHD), which is located 69 miles (112 kilometers) N of DEF.
- The furthest airport from Dezful Airport (DEF) is Totegegie Airport (GMR), which is located 11,760 miles (18,927 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
Facts about Sidney-Richland Municipal Airport (SDY):
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.