Nonstop flight route between St. Mary's, Alaska, United States and College Park, Maryland, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(38°58'50"N by 76°55'20"W)
Distance from KSM to CGS:
3,775.14 miles (6,075.49 km)
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Jump to:
- About this route
- KSM Airport Information
- CGS Airport Information
- Facts about KSM
- Facts about CGS
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to CGS
- List of Nearest Airports to CGS
- Map of Furthest Airports from CGS
- List of Furthest Airports from CGS
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and College Park Airport (CGS), College Park, Maryland, United States would travel a Great Circle distance of 3,775 miles (or 6,075 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 St. Mary's Airport and College Park 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 St. Mary's Airport and College Park Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Arrival 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 |
Facts about St. Mary's Airport (KSM):
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- St. Mary's Airport (KSM) has 2 runways.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
Facts about College Park Airport (CGS):
- 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 closest airport to College Park Airport (CGS) is Bolling Air Force Base (BOF), which is located only 11 miles (17 kilometers) SSW of CGS.
- College Park Airport (CGS) currently has only 1 runway.
- 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.
- The Christmas Aeroplane Company of Washington D.C.
- College Park Airport is home to many "firsts" in aviation, and is particularly significant for the well-known aviators and aviation inventors who played a part in this field's long history.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 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 | |