Nonstop flight route between Sidney, Montana, United States and Gulfport, Mississippi, United States:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(30°24'25"N by 89°4'11"W)
Distance from SDY to GPT:
1,438.94 miles (2,315.74 km)
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Jump to:
- About this route
- SDY Airport Information
- GPT Airport Information
- Facts about SDY
- Facts about GPT
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to GPT
- List of Nearest Airports to GPT
- Map of Furthest Airports from GPT
- List of Furthest Airports from GPT
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Gulfport–Biloxi International Airport (GPT), Gulfport, Mississippi, United States would travel a Great Circle distance of 1,439 miles (or 2,316 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 Sidney-Richland Municipal Airport and Gulfport–Biloxi International Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | GPT / KGPT |
| Airport Name: | Gulfport–Biloxi International Airport |
| Location: | Gulfport, Mississippi, United States |
| GPS Coordinates: | 30°24'25"N by 89°4'11"W |
| Area Served: | Gulfport–Biloxi metropolitan area |
| Operator/Owner: | Gulfport–Biloxi Regional Airport Authority |
| Airport Type: | Public |
| Elevation: | 28 feet (9 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from GPT |
| More Information: | GPT Maps & Info |
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 (SDY) has 2 runways.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
Facts about Gulfport–Biloxi International Airport (GPT):
- Gulfport–Biloxi International Airport (GPT) has 2 runways.
- Through the late 1970s, Southern Airways continued as the primary airline, followed by successors Republic Airlines and Northwest Airlines into the 1990s.
- The closest airport to Gulfport–Biloxi International Airport (GPT) is Keesler Air Force Base (BIX), which is located only 9 miles (14 kilometers) E of GPT.
- Gulfport–Biloxi International Airport is a joint civil-military public use airport located three nautical miles northeast of the central business district of Gulfport, a city in Harrison County, Mississippi, United States.
- GPT currently has five airlines providing scheduled passenger service to six airports.
- The furthest airport from Gulfport–Biloxi International Airport (GPT) is Cocos (Keeling) Island Airport (CCK), which is located 11,123 miles (17,900 kilometers) away in Cocos Islands, Australia.
- Because of Gulfport–Biloxi International Airport's relatively low elevation of 28 feet, planes can take off or land at Gulfport–Biloxi 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.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.73 miles (14.05 km) E | Keesler Air Force Base (BIX) | Biloxi, Mississippi, United States | |
| 2 | 32.45 miles (52.22 km) E | Trent Lott International Airport (PGL) | Pascagoula, Mississippi, United States | |
| 3 | 52.99 miles (85.28 km) ENE | Mobile Regional Airport (MOB) | Mobile, Alabama, United States | |
| 4 | 60.25 miles (96.96 km) N | Hattiesburg Bobby L. Chain Municipal Airport (HBG) | Hattiesburg, Mississippi, United States | |
| 5 | 61.53 miles (99.03 km) ENE | Mobile Downtown Airport (BFM) | Mobile, Alabama, United States | |
| 6 | 62.52 miles (100.61 km) WSW | Lakefront Airport (NEW) | New Orleans, Louisiana, United States | |
| 7 | 68.08 miles (109.57 km) WSW | Southern Seaplane Airport (BCS) | Belle Chasse, Louisiana, United States | |
| 8 | 70.31 miles (113.15 km) SW | Naval Air Station Joint Reserve Base New Orleans (NBG) | New Orleans, Louisiana, United States | |
| 9 | 74.93 miles (120.58 km) NNW | Hattiesburg–Laurel Regional Airport (PIB) | Hattiesburg/Laurel, Mississippi, United States | |
| 10 | 76.49 miles (123.10 km) WSW | Louis Armstrong New Orleans International Airport (MSY) | New Orleans, Louisiana, United States | |
| 11 | 83.77 miles (134.81 km) E | Jack Edwards Airport (GUF) | Gulf Shores, Alabama, United States | |
| 12 | 85.51 miles (137.62 km) E | NOLF Barin (NHX) | Foley, Alabama, United States | |
| 13 | 87.67 miles (141.09 km) N | Hesler-Noble Field (LUL) | Laurel, Mississippi, United States | |
| 14 | 98.80 miles (159.01 km) WNW | McComb-Pike County Airport (MCB) | McComb, Mississippi, United States | |
| 15 | 103.26 miles (166.18 km) E | NOLF Saufley Field (NUN) | Pensacola, Florida, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,122.63 miles (17,900.10 km) SSW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 11,024.96 miles (17,742.91 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 3 | 11,017.75 miles (17,731.31 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 4 | 11,006.64 miles (17,713.43 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 5 | 11,005.83 miles (17,712.11 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 6 | 11,001.17 miles (17,704.62 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 7 | 10,996.28 miles (17,696.75 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 8 | 10,989.40 miles (17,685.67 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 9 | 10,981.41 miles (17,672.82 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 10 | 10,974.14 miles (17,661.12 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 11 | 10,961.66 miles (17,641.05 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 12 | 10,956.20 miles (17,632.26 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 13 | 10,954.21 miles (17,629.05 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,945.10 miles (17,614.39 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 15 | 10,933.19 miles (17,595.22 km) W | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |