Nonstop flight route between Williston, North Dakota, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(48°10'41"N by 103°38'31"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from ISN to CPS:
945.73 miles (1,522.01 km)
Share this route:
Jump to:
- About this route
- ISN Airport Information
- CPS Airport Information
- Facts about ISN
- Facts about CPS
- Map of Nearest Airports to ISN
- List of Nearest Airports to ISN
- Map of Furthest Airports from ISN
- List of Furthest Airports from ISN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Sloulin Field International Airport (ISN), Williston, North Dakota, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 946 miles (or 1,522 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 Sloulin Field International Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ISN / KISN |
| Airport Name: | Sloulin Field International Airport |
| Location: | Williston, North Dakota, United States |
| GPS Coordinates: | 48°10'41"N by 103°38'31"W |
| Area Served: | Williston, North Dakota |
| Operator/Owner: | City of Williston |
| Airport Type: | Public |
| Elevation: | 1982 feet (604 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ISN |
| More Information: | ISN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Facts about Sloulin Field International Airport (ISN):
- ISN is mostly used for general aviation but is served by United Express, with three flights a day with service to Denver, and Delta Connection, with three flights a day with service to Minneapolis-St.
- The closest airport to Sloulin Field International Airport (ISN) is Sidney-Richland Municipal Airport (SDY), which is located 41 miles (67 kilometers) SW of ISN.
- Sloulin Field International Airport (ISN) has 2 runways.
- The furthest airport from Sloulin Field International Airport (ISN) is Sir Gaëtan Duval Airport (RRG), which is located 10,343 miles (16,646 kilometers) away in Rodrigues Island, Mauritius.
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) SW | Sidney-Richland Municipal Airport (SDY) | Sidney, Montana, United States |     |
| 2 | 58.38 miles (93.96 km) NW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 3 | 77.70 miles (125.05 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 4 | 89.31 miles (143.72 km) W | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 5 | 89.98 miles (144.81 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 6 | 103.16 miles (166.01 km) SSE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 7 | 106.27 miles (171.02 km) E | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 8 | 108.97 miles (175.38 km) E | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 9 | 136.92 miles (220.35 km) W | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 10 | 137.94 miles (221.99 km) S | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 11 | 160.21 miles (257.84 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 12 | 162.43 miles (261.41 km) NNW | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 13 | 164.58 miles (264.87 km) WSW | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 14 | 166.49 miles (267.93 km) SE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 15 | 171.99 miles (276.80 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,343.31 miles (16,645.91 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,256.31 miles (16,505.88 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,249.07 miles (16,494.23 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,225.08 miles (16,455.63 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,221.74 miles (16,450.25 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 6 | 10,197.81 miles (16,411.75 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 7 | 10,188.94 miles (16,397.46 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 8 | 10,179.06 miles (16,381.56 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 9 | 10,172.04 miles (16,370.27 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,141.19 miles (16,320.62 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,117.88 miles (16,283.11 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 12 | 10,106.68 miles (16,265.08 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 13 | 10,096.36 miles (16,248.47 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 14 | 10,095.83 miles (16,247.62 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,074.99 miles (16,214.08 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |