Nonstop flight route between Sidney, Montana, United States and Boundji, Republic of the Congo:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(1°1'58"S by 15°22'58"E)
Distance from SDY to BOE:
7,614.58 miles (12,254.45 km)
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Jump to:
- About this route
- SDY Airport Information
- BOE Airport Information
- Facts about SDY
- Facts about BOE
- 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 BOE
- List of Nearest Airports to BOE
- Map of Furthest Airports from BOE
- List of Furthest Airports from BOE
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Boundji Airport (BOE), Boundji, Republic of the Congo would travel a Great Circle distance of 7,615 miles (or 12,254 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 large distance between Sidney-Richland Municipal Airport and Boundji Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Sidney-Richland Municipal Airport and Boundji Airport. You'll see that it will travel the same route of the red line on this map!
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: | BOE / FCOB |
| Airport Name: | Boundji Airport |
| Location: | Boundji, Republic of the Congo |
| GPS Coordinates: | 1°1'58"S by 15°22'58"E |
| Area Served: | Boundji, Republic of the Congo |
| Elevation: | 1247 feet (380 meters) |
| View all routes: | Routes from BOE |
| More Information: | BOE Maps & Info |
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.
- 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.
Facts about Boundji Airport (BOE):
- The closest airport to Boundji Airport (BOE) is Oyo Ollombo Airport (OLL), which is located 39 miles (63 kilometers) ESE of BOE.
- The furthest airport from Boundji Airport (BOE) is Cassidy International Airport (CXI), which is located 11,931 miles (19,200 kilometers) away in Christmas Island, Kiribati.
| 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 | 38.87 miles (62.55 km) ESE | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo | |
| 2 | 41.59 miles (66.93 km) WNW | Ewo Airport (EWO) | Ewo, Republic of Congo | |
| 3 | 52.30 miles (84.17 km) NE | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 4 | 66.62 miles (107.21 km) SSE | Gamboma Airport (GMM) | Gamboma, Republic of the Congo | |
| 5 | 71.55 miles (115.14 km) N | Makoua Airport (MKJ) | Makoua, Republic of the Congo | |
| 6 | 88.07 miles (141.74 km) NW | Kelle Airport (KEE) | Kelle, Republic of the Congo | |
| 7 | 102.48 miles (164.93 km) W | Akieni Airport (AKE) | Akieni, Gabon | |
| 8 | 112.48 miles (181.02 km) SSW | Djambala Airport (DJM) | Djambala, Republic of Congo | |
| 9 | 114.15 miles (183.71 km) SSW | Lague Airport (LCO) | Lague, Republic of Congo | |
| 10 | 141.07 miles (227.04 km) WSW | M'Vengue El Hadj Omar Bongo Ondimba International Airport (MVB) | Franceville / Mvengue, Gabon | |
| 11 | 150.10 miles (241.57 km) WSW | Moanda Airport (MFF) | Moanda, Gabon | |
| 12 | 165.69 miles (266.65 km) SW | Zanaga Airport (ANJ) | Zanaga, Republic of the Congo | |
| 13 | 197.00 miles (317.04 km) SE | Nioki Airport (NIO) | Nioki, Democratic Republic of the Congo | |
| 14 | 203.50 miles (327.49 km) W | Koulamoutou Airport (Koula Moutou Airport) (KOU) | Koulamoutou, Gabon | |
| 15 | 205.07 miles (330.03 km) WNW | Makokou Airport (MKU) | Makokou, Gabon | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,930.56 miles (19,200.32 km) W | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,881.17 miles (19,120.83 km) ESE | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 11,609.92 miles (18,684.30 km) SSW | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 4 | 11,333.05 miles (18,238.73 km) SSE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 5 | 11,330.39 miles (18,234.45 km) SSE | Tau Airport (TAV) | Tau, American Samoa | |
| 6 | 11,329.98 miles (18,233.79 km) SSE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 7 | 11,301.91 miles (18,188.61 km) NNE | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 8 | 11,299.88 miles (18,185.35 km) SSE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 9 | 11,298.77 miles (18,183.57 km) SSE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 10 | 11,292.24 miles (18,173.05 km) SSE | Asau Airport (AAU) | Asau, Samoa | |
| 11 | 11,291.98 miles (18,172.63 km) SSE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 12 | 11,289.66 miles (18,168.91 km) SSE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 13 | 11,169.52 miles (17,975.55 km) SE | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 14 | 11,141.19 miles (17,929.96 km) ESE | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 15 | 11,128.79 miles (17,910.01 km) E | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |