Nonstop flight route between Moline, Illinois, United States and Sidney, Montana, United States:
Departure Airport:
(41°26'54"N by 90°30'26"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from MLI to SDY:
798.60 miles (1,285.22 km)
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Jump to:
- About this route
- MLI Airport Information
- SDY Airport Information
- Facts about MLI
- Facts about SDY
- Map of Nearest Airports to MLI
- List of Nearest Airports to MLI
- Map of Furthest Airports from MLI
- List of Furthest Airports from MLI
- 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 Quad City International Airport (MLI), Moline, Illinois, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 799 miles (or 1,285 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 Quad City International 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: | MLI / KMLI |
| Airport Name: | Quad City International Airport |
| Location: | Moline, Illinois, United States |
| GPS Coordinates: | 41°26'54"N by 90°30'26"W |
| Operator/Owner: | Rock Island County |
| Airport Type: | Public |
| Elevation: | 590 feet (180 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from MLI |
| More Information: | MLI 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 Quad City International Airport (MLI):
- The airport boasts the regional headquarters for the Department of Homeland Security's Transportation Security Administration, whose offices are located on the second floor of the passenger terminal.
- The furthest airport from Quad City International Airport (MLI) is Margaret River Airport (MGV), which is located 10,950 miles (17,623 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Quad City International Airport (MLI) is Davenport Municipal Airport (DVN), which is located only 12 miles (19 kilometers) NNW of MLI.
- Quad City International Airport (MLI) has 3 runways.
- Because of Quad City International Airport's relatively low elevation of 590 feet, planes can take off or land at Quad City 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 airport is designated international for having a port of entry customs service.
- Franing Field, the site of the present Quad City International Airport, was picked as an ideal flying field, with 120 acres of level, grassy land free of obstacles.
- Air Midwest, AirTran Airways, America West Airlines, American Airlines, Allegiant Air, Chicago Air, Midway Connection, Northwest Airlines, Ozark Air Lines, Pan American World Airways, Skyway Airlines, Trans World Airlines and United Airlines have flown to Quad Cities.
Facts about Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.93 miles (19.19 km) NNW | Davenport Municipal Airport (DVN) | Davenport, Iowa, United States |     |
| 2 | 27.99 miles (45.04 km) NNE | Clinton Municipal Airport (CWI) | Clinton, Iowa, United States | |
| 3 | 33.67 miles (54.19 km) W | Muscatine Municipal Airport (MUT) | Muscatine, Iowa, United States | |
| 4 | 35.50 miles (57.13 km) S | Galesburg Municipal Airport (GBG) | Galesburg, Illinois, United States | |
| 5 | 55.32 miles (89.03 km) WNW | Iowa City Municipal Airport (IOW) | Iowa City, Iowa, United States | |
| 6 | 56.12 miles (90.32 km) SW | Southeast Iowa Regional Airport (BRL) | Burlington, Iowa, United States | |
| 7 | 62.65 miles (100.83 km) WSW | Mount Pleasant Municipal Airport (MPZ) | Mount Pleasant, Iowa, United States | |
| 8 | 63.11 miles (101.56 km) NNW | Monticello Regional Airport (MXO) | Monticello, Iowa, United States | |
| 9 | 64.60 miles (103.97 km) S | Macomb Municipal Airport (MQB) | Macomb, Illinois, United States | |
| 10 | 66.68 miles (107.31 km) N | Dubuque Regional Airport (DBQ) | Dubuque, Iowa, United States | |
| 11 | 68.82 miles (110.76 km) SE | General Wayne A. Downing Peoria International Airport (PIA) | Peoria, Illinois, United States | |
| 12 | 69.03 miles (111.09 km) WNW | The Eastern Iowa Airport (CID) | Cedar Rapids, Iowa, United States | |
| 13 | 70.51 miles (113.48 km) E | Illinois Valley Regional Airport (VYS) | Peru, Illinois, United States | |
| 14 | 81.20 miles (130.68 km) WSW | Fairfield Municipal Airport (FFL) | Fairfield, Iowa, United States | |
| 15 | 83.52 miles (134.41 km) SW | Keokuk Municipal Airport (EOK) | Keokuk, Iowa, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,950.19 miles (17,622.57 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,927.07 miles (17,585.37 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,907.99 miles (17,554.66 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,902.85 miles (17,546.39 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,861.80 miles (17,480.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,848.07 miles (17,458.24 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,842.96 miles (17,450.01 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 10,838.10 miles (17,442.19 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,820.42 miles (17,413.74 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,812.93 miles (17,401.67 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 10,774.50 miles (17,339.83 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,746.90 miles (17,295.41 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,728.68 miles (17,266.09 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,722.17 miles (17,255.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,694.21 miles (17,210.62 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) NE | Sloulin Field International Airport (ISN) | Williston, North Dakota, United States | |
| 2 | 48.66 miles (78.31 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 3 | 69.41 miles (111.70 km) WNW | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 4 | 76.29 miles (122.77 km) NNW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 5 | 90.57 miles (145.76 km) SE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 6 | 111.04 miles (178.70 km) SSE | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 7 | 117.38 miles (188.91 km) WNW | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 8 | 118.10 miles (190.06 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 9 | 118.99 miles (191.50 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 10 | 131.42 miles (211.49 km) W | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 11 | 139.74 miles (224.89 km) ENE | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 12 | 140.05 miles (225.38 km) ENE | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 13 | 174.07 miles (280.14 km) ESE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 14 | 189.51 miles (304.99 km) N | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 15 | 191.53 miles (308.24 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,383.49 miles (16,710.57 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,297.57 miles (16,572.29 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,290.39 miles (16,560.74 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,266.41 miles (16,522.14 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,218.50 miles (16,445.05 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,203.17 miles (16,420.36 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,179.29 miles (16,381.94 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,169.42 miles (16,366.06 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 9 | 10,153.64 miles (16,340.65 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,120.11 miles (16,286.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,113.85 miles (16,276.63 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 10,100.83 miles (16,255.67 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 10,089.33 miles (16,237.15 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,078.56 miles (16,219.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,076.48 miles (16,216.49 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |