Nonstop flight route between St. Theresa Point, Manitoba, Canada and Sidney, Montana, United States:
Departure Airport:
(53°50'44"N by 94°51'7"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from YST to SDY:
587.65 miles (945.73 km)
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Jump to:
- About this route
- YST Airport Information
- SDY Airport Information
- Facts about YST
- Facts about SDY
- Map of Nearest Airports to YST
- List of Nearest Airports to YST
- Map of Furthest Airports from YST
- List of Furthest Airports from YST
- 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. Theresa Point Airport (YST), St. Theresa Point, Manitoba, Canada and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 588 miles (or 946 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. Theresa Point 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: | YST / CYST |
| Airport Name: | St. Theresa Point Airport |
| Location: | St. Theresa Point, Manitoba, Canada |
| GPS Coordinates: | 53°50'44"N by 94°51'7"W |
| Operator/Owner: | Government of Manitoba |
| Airport Type: | Public |
| Elevation: | 767 feet (234 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YST |
| More Information: | YST 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. Theresa Point Airport (YST):
- The closest airport to St. Theresa Point Airport (YST) is Island Lake Airport (YIV), which is located only 8 miles (13 kilometers) E of YST.
- St. Theresa Point Airport (YST) currently has only 1 runway.
- Because of St. Theresa Point Airport's relatively low elevation of 767 feet, planes can take off or land at St. Theresa Point 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 furthest airport from St. Theresa Point Airport (YST) is Margaret River Airport (MGV), which is located 10,435 miles (16,793 kilometers) away in Margaret River, Western Australia, Australia.
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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.13 miles (13.09 km) E | Island Lake Airport (YIV) | Island Lake, Manitoba, Canada |     |
| 2 | 51.40 miles (82.72 km) NNE | Gods Lake Narrows Airport (YGO) | Gods Lake Narrows, Manitoba, Canada | |
| 3 | 57.08 miles (91.87 km) ENE | Red Sucker Lake Airport (YRS) | Red Sucker Lake, Manitoba, Canada | |
| 4 | 73.94 miles (119.00 km) N | Knee Lake Airport (YKE) | Knee Lake, Manitoba, Canada | |
| 5 | 75.43 miles (121.39 km) NNE | Gods River Airport (ZGI) | Gods River, Manitoba, Canada | |
| 6 | 77.07 miles (124.04 km) NNW | Oxford House Airport (YOH) | Oxford House, Manitoba, Canada | |
| 7 | 82.23 miles (132.34 km) SE | Sandy Lake Airport (ZSJ) | Sandy Lake, Ontario, Canada | |
| 8 | 88.46 miles (142.37 km) SSE | Deer Lake Airport (YVZ) | Deer Lake, Ontario, Canada | |
| 9 | 101.85 miles (163.92 km) SE | Keewaywin Airport (KEW) | Keewaywin, Ontario, Canada | |
| 10 | 108.24 miles (174.19 km) E | Sachigo Lake Airport (ZPB) | Sachigo Lake, Ontario, Canada | |
| 11 | 115.67 miles (186.16 km) WSW | Poplar River Airport (XPP) | Poplar River, Manitoba, Canada | |
| 12 | 122.04 miles (196.40 km) W | Norway House Airport (YNE) | Norway House, Manitoba, Canada | |
| 13 | 122.23 miles (196.71 km) SSE | Poplar Hill Airport (YHP) | Poplar Hill, Ontario, Canada | |
| 14 | 122.72 miles (197.50 km) SE | North Spirit Lake Airport (YNO) | North Spirit Lake, Ontario, Canada | |
| 15 | 127.00 miles (204.39 km) SSW | Little Grand Rapids Airport (ZGR) | Little Grand Rapids, Manitoba, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,434.71 miles (16,793.00 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,416.38 miles (16,763.49 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,410.92 miles (16,754.71 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,392.51 miles (16,725.08 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 5 | 10,384.27 miles (16,711.82 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,331.69 miles (16,627.21 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,312.81 miles (16,596.81 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,306.17 miles (16,586.14 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,294.43 miles (16,567.24 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,232.46 miles (16,467.51 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,177.69 miles (16,379.37 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 10,156.57 miles (16,345.37 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,136.94 miles (16,313.79 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,111.43 miles (16,272.72 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,105.96 miles (16,263.93 km) SW | Kalbarri Airport (KAX) | Kalbarri, 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 | |