Nonstop flight route between College Park, Maryland, United States and Roundup, Montana, United States:
Departure Airport:
(38°58'50"N by 76°55'20"W)
Arrival Airport:
(46°28'30"N by 108°32'35"W)
Distance from CGS to RPX:
1,673.44 miles (2,693.13 km)
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- About this route
- CGS Airport Information
- RPX Airport Information
- Facts about CGS
- Facts about RPX
- Map of Nearest Airports to CGS
- List of Nearest Airports to CGS
- Map of Furthest Airports from CGS
- List of Furthest Airports from CGS
- 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 College Park Airport (CGS), College Park, Maryland, United States and Roundup Airport (RPX), Roundup, Montana, United States would travel a Great Circle distance of 1,673 miles (or 2,693 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 College Park 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: | CGS / KCGS |
| Airport Name: | College Park Airport |
| Location: | College Park, Maryland, United States |
| GPS Coordinates: | 38°58'50"N by 76°55'20"W |
| Operator/Owner: | Maryland-National Capital Park & Planning Commission |
| Airport Type: | Public |
| Elevation: | 48 feet (15 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CGS |
| More Information: | CGS 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 College Park Airport (CGS):
- College Park Airport (CGS) currently has only 1 runway.
- In 1918, after a three-month trial with the War Department beginning May 15, the Post Office Department inaugurated the first Postal Airmail Service from College Park, serving Philadelphia and New York.
- The Christmas Aeroplane Company of Washington D.C.
- From 1927 until 1933, the Bureau of Standards developed and tested the first radio navigational aids for use in "blind" or bad weather flying.
- Because of College Park Airport's relatively low elevation of 48 feet, planes can take off or land at College Park 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 College Park Aviation Museum houses antique and reproduction aircraft associated with the history of College Park Airport.
- The closest airport to College Park Airport (CGS) is Bolling Air Force Base (BOF), which is located only 11 miles (17 kilometers) SSW of CGS.
- The furthest airport from College Park Airport (CGS) is Margaret River Airport (MGV), which is located 11,684 miles (18,803 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Roundup Airport (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.
- The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10.77 miles (17.34 km) SSW | Bolling Air Force Base (BOF) | Washington, D.C., United States |     |
| 2 | 10.83 miles (17.42 km) SW | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 3 | 11.35 miles (18.26 km) NE | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 4 | 12.10 miles (19.47 km) SSE | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 5 | 18.42 miles (29.64 km) NW | Montgomery County Airpark (GAI) | Gaithersburg, Maryland, United States | |
| 6 | 19.15 miles (30.81 km) NE | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| 7 | 19.20 miles (30.89 km) E | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 8 | 23.04 miles (37.07 km) SW | Davison Army Airfield (DAA) | Fort Belvoir, Virginia, United States | |
| 9 | 28.77 miles (46.30 km) W | Washington Dulles International Airport (IAD) | Washington, D.C. / Virginia, United States | |
| 10 | 34.75 miles (55.93 km) WNW | Leesburg Executive Airport (JYO) | Leesburg, Virginia, United States | |
| 11 | 36.20 miles (58.25 km) NE | Martin State Airport (MTN) | Baltimore, Maryland, United States | |
| 12 | 36.60 miles (58.91 km) WSW | Manassas Regional Airport (HEF) | Manassas, Virginia, United States | |
| 13 | 36.60 miles (58.91 km) WSW | Manassas Regional Airport (MNZ) | Manassas, Virginia, United States | |
| 14 | 38.70 miles (62.28 km) NW | Frederick Municipal Airport (FDK) | Frederick, Maryland, United States | |
| 15 | 47.49 miles (76.42 km) ESE | Easton Airport (ESN) | Easton, Maryland, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,683.93 miles (18,803.41 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,660.48 miles (18,765.68 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,643.55 miles (18,738.44 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,635.64 miles (18,725.70 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,587.41 miles (18,648.09 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,578.21 miles (18,633.28 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,575.38 miles (18,628.73 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,564.81 miles (18,611.70 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,548.60 miles (18,585.63 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,531.10 miles (18,557.46 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,468.88 miles (18,457.33 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,436.19 miles (18,404.72 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,426.09 miles (18,388.46 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,419.92 miles (18,378.53 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,346.59 miles (18,260.51 km) SW | 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 | |