Nonstop flight route between Opelousas, Louisiana, United States and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from OPL to SDY:
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- About this route
- OPL Airport Information
- SDY Airport Information
- Facts about OPL
- Facts about SDY
- Map of Nearest Airports to OPL
- List of Nearest Airports to OPL
- Map of Furthest Airports from OPL
- List of Furthest Airports from OPL
- 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 St. Landry Parish Airport (OPL), Opelousas, Louisiana, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 1,347 miles (or 2,167 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 relatively short distance between St. Landry Parish Airport and Sidney-Richland Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | OPL / KOPL |
Airport Names: |
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Location: | Opelousas, Louisiana, United States |
GPS Coordinates: | 30°33'29"N by 92°5'57"W |
Airport Type: | Public |
Elevation: | 75 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from OPL |
More Information: | OPL 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 St. Landry Parish Airport (OPL):
- Because of St. Landry Parish Airport's relatively low elevation of 75 feet, planes can take off or land at St. Landry Parish 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 St. Landry Parish Airport (OPL) is Lafayette Regional Airport (LFT), which is located 25 miles (41 kilometers) SSE of OPL.
- In addition to being known as "St. Landry Parish Airport", another name for OPL is "Ahart Field".
- The furthest airport from St. Landry Parish Airport (OPL) is Cocos (Keeling) Island Airport (CCK), which is located 11,045 miles (17,775 kilometers) away in Cocos Islands, Australia.
- St. Landry Parish Airport (OPL) has 2 runways.
Facts about Sidney-Richland Municipal Airport (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.
- 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.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.