Nonstop flight route between Sidney, Montana, United States and Chefornak, Alaska, United States:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(60°8'57"N by 164°17'8"W)
Distance from SDY to CYF:
2,490.36 miles (4,007.84 km)
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Jump to:
- About this route
- SDY Airport Information
- CYF Airport Information
- Facts about SDY
- Facts about CYF
- 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 CYF
- List of Nearest Airports to CYF
- Map of Furthest Airports from CYF
- List of Furthest Airports from CYF
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Chefornak Airport (CYF), Chefornak, Alaska, United States would travel a Great Circle distance of 2,490 miles (or 4,008 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 Chefornak 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: | CYF / PACK |
| Airport Names: |
|
| Location: | Chefornak, Alaska, United States |
| GPS Coordinates: | 60°8'57"N by 164°17'8"W |
| Area Served: | Chefornak, Alaska |
| Operator/Owner: | State of Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 40 feet (12 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CYF |
| More Information: | CYF Maps & Info |
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.
- 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.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
Facts about Chefornak Airport (CYF):
- In addition to being known as "Chefornak Airport", another name for CYF is "CFK".
- The furthest airport from Chefornak Airport (CYF) is Cape Town International Airport (CPT), which is located 10,623 miles (17,096 kilometers) away in Cape Town, South Africa.
- The closest airport to Chefornak Airport (CYF) is Kipnuk Airport (KPN), which is located only 17 miles (28 kilometers) SSE of CYF.
- Chefornak Airport (CYF) currently has only 1 runway.
- Chefornak Airport is a state-owned public-use airport in Chefornak, a city in the Bethel Census Area of the U.S.
- Because of Chefornak Airport's relatively low elevation of 40 feet, planes can take off or land at Chefornak 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 | 17.33 miles (27.89 km) SSE | Kipnuk Airport (KPN) | Kipnuk, Alaska, United States | |
| 2 | 26.40 miles (42.48 km) NNW | Nightmute Airport (NME) | Nightmute, Alaska, United States | |
| 3 | 38.54 miles (62.03 km) NW | Toksook Bay Airport (OOK) | Toksook Bay, Alaska, United States | |
| 4 | 44.76 miles (72.03 km) NW | Tununak Airport (TNK) | Tununak, Alaska, United States | |
| 5 | 50.15 miles (80.72 km) ESE | Kongiganak Airport (KKH) | Kongiganak, Alaska, United States | |
| 6 | 55.90 miles (89.97 km) NNW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 7 | 56.98 miles (91.69 km) ENE | Tuntutuliak Airport (WTL) | Tuntutuliak, Alaska, United States | |
| 8 | 69.74 miles (112.24 km) WNW | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| 9 | 77.14 miles (124.15 km) E | Eek Airport (EEK) | Eek, Alaska, United States | |
| 10 | 78.04 miles (125.60 km) NE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 11 | 81.68 miles (131.45 km) NE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 84.51 miles (136.01 km) NE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| 13 | 87.11 miles (140.19 km) ENE | Napakiak Airport (WNA) | Napakiak, Alaska, United States | |
| 14 | 88.70 miles (142.75 km) ESE | Quinhagak Airport (KWN) | Quinhagak, Alaska, United States | |
| 15 | 93.66 miles (150.73 km) ENE | Napaskiak Airport (PKA) | Napaskiak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,623.27 miles (17,096.46 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,605.62 miles (17,068.05 km) SSW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,574.64 miles (17,018.19 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,531.01 miles (16,947.97 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,484.31 miles (16,872.82 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,372.94 miles (16,693.59 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,330.83 miles (16,625.82 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,303.67 miles (16,582.11 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,299.17 miles (16,574.86 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,299.16 miles (16,574.86 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,272.63 miles (16,532.15 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,265.48 miles (16,520.66 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,261.58 miles (16,514.37 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,256.22 miles (16,505.74 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,254.78 miles (16,503.43 km) S | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |