Nonstop flight route between Salem, Illinois, United States and Roundup, Montana, United States:
Departure Airport:
(38°38'34"N by 88°57'51"W)
Arrival Airport:
(46°28'30"N by 108°32'35"W)
Distance from SLO to RPX:
1,129.53 miles (1,817.80 km)
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Jump to:
- About this route
- SLO Airport Information
- RPX Airport Information
- Facts about SLO
- Facts about RPX
- Map of Nearest Airports to SLO
- List of Nearest Airports to SLO
- Map of Furthest Airports from SLO
- List of Furthest Airports from SLO
- Map of Nearest Airports to RPX
- List of Nearest Airports to RPX
- Map of Furthest Airports from RPX
- List of Furthest Airports from RPX
About this route:
A direct, nonstop flight between Salem–Leckrone Airport (SLO), Salem, Illinois, United States and Roundup Airport (RPX), Roundup, Montana, United States would travel a Great Circle distance of 1,130 miles (or 1,818 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 Salem–Leckrone Airport and Roundup Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | SLO / KSLO |
| Airport Name: | Salem–Leckrone Airport |
| Location: | Salem, Illinois, United States |
| GPS Coordinates: | 38°38'34"N by 88°57'51"W |
| Area Served: | Salem, Illinois |
| Operator/Owner: | Salem Airport Authority |
| Airport Type: | Public |
| Elevation: | 573 feet (175 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SLO |
| More Information: | SLO Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | RPX / KRPX |
| Airport Name: | Roundup Airport |
| Location: | Roundup, Montana, United States |
| GPS Coordinates: | 46°28'30"N by 108°32'35"W |
| Area Served: | Roundup, Montana |
| Operator/Owner: | City of Roundup & Musselshell County |
| Airport Type: | Public |
| Elevation: | 3490 feet (1,064 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RPX |
| More Information: | RPX Maps & Info |
Facts about Salem–Leckrone Airport (SLO):
- The airport is named for Philip Leckrone, a flying instructor from Salem who fought in the Royal Air Force Eagle Squadrons during World War II.
- The closest airport to Salem–Leckrone Airport (SLO) is Mt. Vernon Airport (MVN), which is located 23 miles (37 kilometers) SSE of SLO.
- Because of Salem–Leckrone Airport's relatively low elevation of 573 feet, planes can take off or land at Salem–Leckrone 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 Salem–Leckrone Airport (SLO) is Margaret River Airport (MGV), which is located 11,062 miles (17,802 kilometers) away in Margaret River, Western Australia, Australia.
- Salem–Leckrone Airport (SLO) currently has only 1 runway.
Facts about Roundup Airport (RPX):
- The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
- The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
- Roundup Airport (RPX) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.80 miles (36.69 km) SSE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States |     |
| 2 | 26.05 miles (41.92 km) WNW | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 3 | 47.52 miles (76.48 km) W | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 60.74 miles (97.76 km) WNW | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 5 | 61.39 miles (98.80 km) S | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 6 | 61.76 miles (99.38 km) SSW | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 7 | 64.55 miles (103.88 km) W | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 8 | 68.42 miles (110.11 km) NNE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 9 | 73.73 miles (118.66 km) E | Lawrenceville–Vincennes International Airport (LWV) | Lawrenceville, Illinois, United States | |
| 10 | 75.69 miles (121.81 km) W | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 11 | 76.24 miles (122.70 km) E | O'Neal Airport (OEA) | Vincennes, Indiana, United States | |
| 12 | 80.22 miles (129.10 km) E | Ed-Air Airport (OTN) | Oaktown, Indiana, United States | |
| 13 | 82.50 miles (132.78 km) N | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 14 | 87.81 miles (141.32 km) ENE | Sullivan County Airport (SIV) | Sullivan, Indiana, United States | |
| 15 | 88.19 miles (141.93 km) ESE | Evansville Regional Airport (EVV) | Evansville, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,061.93 miles (17,802.41 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,039.84 miles (17,766.86 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,017.17 miles (17,730.38 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,014.01 miles (17,725.28 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,986.57 miles (17,681.13 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,971.12 miles (17,656.27 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,961.97 miles (17,641.53 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,957.97 miles (17,635.11 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,939.06 miles (17,604.66 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,921.98 miles (17,577.18 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,919.07 miles (17,572.50 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,901.66 miles (17,544.47 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,869.48 miles (17,492.69 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,868.64 miles (17,491.33 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,859.47 miles (17,476.58 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 46.10 miles (74.19 km) S | Billings Logan International Airport (BIL) | Billings, Montana, United States | |
| 2 | 59.02 miles (94.99 km) NW | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 3 | 95.49 miles (153.67 km) NE | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 4 | 105.84 miles (170.33 km) WSW | Mission Field (LVM) | Livingston, Montana, United States | |
| 5 | 126.53 miles (203.63 km) E | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 6 | 133.88 miles (215.46 km) WSW | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 7 | 137.05 miles (220.56 km) S | Yellowstone Regional Airport (COD) | Cody, Wyoming, United States | |
| 8 | 139.98 miles (225.28 km) SSE | Sheridan County Airport (SHR) | Sheridan, Wyoming, United States | |
| 9 | 143.48 miles (230.90 km) WNW | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 10 | 150.20 miles (241.73 km) NE | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 11 | 150.36 miles (241.97 km) WNW | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 12 | 153.79 miles (247.50 km) NNW | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| 13 | 163.70 miles (263.45 km) W | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 14 | 175.30 miles (282.12 km) SW | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 15 | 175.96 miles (283.18 km) S | Worland Municipal Airport (WRL) | Worland, Wyoming, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,534.71 miles (16,953.93 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,479.36 miles (16,864.85 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,476.57 miles (16,860.37 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,454.31 miles (16,824.54 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,433.23 miles (16,790.61 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,330.91 miles (16,625.95 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,261.65 miles (16,514.48 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,233.41 miles (16,469.03 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,132.24 miles (16,306.22 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 10 | 10,132.23 miles (16,306.21 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,116.24 miles (16,280.48 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,108.66 miles (16,268.28 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,089.56 miles (16,237.54 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,066.19 miles (16,199.92 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,059.04 miles (16,188.42 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |