Nonstop flight route between Northern Quebec, Canada and Sidney, Montana, United States:
Departure Airport:
(53°45'16"N by 73°40'31"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from YAH to SDY:
1,386.16 miles (2,230.80 km)
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Jump to:
- About this route
- YAH Airport Information
- SDY Airport Information
- Facts about YAH
- Facts about SDY
- Map of Nearest Airports to YAH
- List of Nearest Airports to YAH
- Map of Furthest Airports from YAH
- List of Furthest Airports from YAH
- 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 La Grande-4 Airport (YAH), Northern Quebec, Canada and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 1,386 miles (or 2,231 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 La Grande-4 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: | YAH / CYAH |
| Airport Name: | La Grande-4 Airport |
| Location: | Northern Quebec, Canada |
| GPS Coordinates: | 53°45'16"N by 73°40'31"W |
| Operator/Owner: | Hydro-Québec |
| Airport Type: | Private |
| Elevation: | 1005 feet (306 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YAH |
| More Information: | YAH 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 La Grande-4 Airport (YAH):
- La Grande-4 Airport (YAH) currently has only 1 runway.
- The furthest airport from La Grande-4 Airport (YAH) is Albany Airport (ALH), which is located 11,023 miles (17,739 kilometers) away in Albany, Western Australia, Australia.
- The closest airport to La Grande-4 Airport (YAH) is La Grande-3 Airport (YAR), which is located 104 miles (167 kilometers) W of YAH.
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
- 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 | 103.98 miles (167.34 km) W | La Grande-3 Airport (YAR) | Northern Quebec, Canada |     |
| 2 | 115.30 miles (185.56 km) ENE | Fontages Airport (YFG) | Fontanges, Quebec, Canada | |
| 3 | 165.06 miles (265.63 km) W | La Grande Rivière Airport (YGL) | Radisson, Quebec, Canada | |
| 4 | 175.85 miles (283.00 km) SW | Nemiscau Airport (YNS) | Nemiscau, Quebec, Canada | |
| 5 | 194.99 miles (313.81 km) NW | Kuujjuarapik Airport (YGW) | Kuujjuarapik, Quebec, Canada | |
| 6 | 213.98 miles (344.36 km) W | Chisasibi Airport (YKU) | Chisasibi, Quebec, Canada | |
| 7 | 218.56 miles (351.74 km) WSW | Wemindji Airport (YNC) | Wemindji, Quebec, Canada | |
| 8 | 222.52 miles (358.11 km) NNW | Umiujaq Airport (YUD) | Umiujaq, Quebec, Canada | |
| 9 | 227.51 miles (366.15 km) WSW | Eastmain River Airport (ZEM) | Eastmain, Quebec, Canada | |
| 10 | 265.07 miles (426.60 km) SW | Waskaganish Airport (YKQ) | Waskaganish, Quebec, Canada | |
| 11 | 277.58 miles (446.73 km) S | Chibougamau/Chapais Airport (YMT) | Chibougamau, Quebec, Canada | |
| 12 | 286.34 miles (460.82 km) ENE | Schefferville Airport (YKL) | Schefferville, Quebec, Canada | |
| 13 | 286.67 miles (461.34 km) E | Wabush Airport (YWK) | Wabush, Labrador, Canada | |
| 14 | 292.09 miles (470.06 km) NW | Sanikiluaq Airport (YSK) | Sanikiluaq, Nunavut, Canada | |
| 15 | 327.41 miles (526.91 km) SW | Matagami Airport (YNM) | Matagami, Quebec, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,022.76 miles (17,739.37 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,007.76 miles (17,715.22 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,001.51 miles (17,705.18 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 10,980.87 miles (17,671.96 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,956.09 miles (17,632.08 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,944.37 miles (17,613.22 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,867.56 miles (17,489.59 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,866.47 miles (17,487.84 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 10,856.58 miles (17,471.93 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 10 | 10,855.77 miles (17,470.63 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 11 | 10,758.61 miles (17,314.25 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,702.68 miles (17,224.25 km) SSW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 10,679.83 miles (17,187.49 km) SSW | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 14 | 10,671.84 miles (17,174.62 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 10,671.38 miles (17,173.89 km) SSW | Morawa Airport (MWB) | Morawa, 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 | |