Nonstop flight route between Columbus, Ohio, United States and Gaithersburg, Maryland, United States:
Departure Airport:
(39°59'53"N by 82°53'30"W)
Arrival Airport:
(39°10'5"N by 77°9'57"W)
Distance from CMH to GAI:
310.19 miles (499.20 km)
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Jump to:
- About this route
- CMH Airport Information
- GAI Airport Information
- Facts about CMH
- Facts about GAI
- Map of Nearest Airports to CMH
- List of Nearest Airports to CMH
- Map of Furthest Airports from CMH
- List of Furthest Airports from CMH
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
About this route:
A direct, nonstop flight between Port Columbus International Airport (CMH), Columbus, Ohio, United States and Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States would travel a Great Circle distance of 310 miles (or 499 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 Port Columbus International Airport and Montgomery County Airpark, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | CMH / KCMH |
| Airport Name: | Port Columbus International Airport |
| Location: | Columbus, Ohio, United States |
| GPS Coordinates: | 39°59'53"N by 82°53'30"W |
| Airport Type: | Public |
| Elevation: | 815 feet (248 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from CMH |
| More Information: | CMH Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | GAI / KGAI |
| Airport Name: | Montgomery County Airpark |
| Location: | Gaithersburg, Maryland, United States |
| GPS Coordinates: | 39°10'5"N by 77°9'57"W |
| Operator/Owner: | Montgomery County Revenue Authority |
| Airport Type: | Public |
| Elevation: | 539 feet (164 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GAI |
| More Information: | GAI Maps & Info |
Facts about Port Columbus International Airport (CMH):
- Today Port Columbus has service to almost all major airline hubs across the United States, exceptions being Seattle, San Francisco, and Salt Lake City.
- Envoy Air operates a maintenance base at Port Columbus, along with Republic Airways who operate their flagship base at Port Columbus.
- Port Columbus International Airport (CMH) has 2 runways.
- Because of Port Columbus International Airport's relatively low elevation of 815 feet, planes can take off or land at Port Columbus International 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.
- Runway 10L/28R is just north of the 40th parallel north.
- The furthest airport from Port Columbus International Airport (CMH) is Margaret River Airport (MGV), which is located 11,361 miles (18,284 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Port Columbus International Airport (CMH) is Ohio State University Airport (OSU), which is located only 11 miles (18 kilometers) WNW of CMH.
Facts about Montgomery County Airpark (GAI):
- Because of Montgomery County Airpark's relatively low elevation of 539 feet, planes can take off or land at Montgomery County Airpark 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.
- Montgomery County Airpark (GAI) currently has only 1 runway.
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
- The furthest airport from Montgomery County Airpark (GAI) is Margaret River Airport (MGV), which is located 11,667 miles (18,776 kilometers) away in Margaret River, Western Australia, Australia.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.12 miles (17.89 km) WNW | Ohio State University Airport (OSU) | Columbus, Ohio, United States |     |
| 2 | 12.87 miles (20.71 km) S | Rickenbacker International Airport (LCK) | Columbus, Ohio, United States | |
| 3 | 43.65 miles (70.24 km) NNW | Marion Municipal Airport (MNN) | Marion, Ohio, United States | |
| 4 | 51.42 miles (82.76 km) WSW | Springfield–Beckley Municipal Airport (SGH) | Springfield, Ohio, United States | |
| 5 | 52.93 miles (85.18 km) N | Galion Municipal Airport (GQQ) | Galion, Ohio, United States | |
| 6 | 53.07 miles (85.40 km) E | Zanesville Municipal Airport (ZZV) | Zanesville, Ohio, United States | |
| 7 | 60.21 miles (96.91 km) NNE | Mansfield Lahm Regional Airport (MFD) | Mansfield, Ohio, United States | |
| 8 | 61.97 miles (99.73 km) SW | Wilmington Air Park (ILN) | Wilmington, Ohio, United States | |
| 9 | 62.52 miles (100.62 km) W | Wright-Patterson Air Force Base (FFO) | Dayton, Ohio, United States | |
| 10 | 64.77 miles (104.23 km) SSE | Ohio University Airport Gordon K. Bush Airport (ATO) | Athens/Albany, Ohio, United States | |
| 11 | 70.62 miles (113.66 km) W | James M. Cox Dayton International Airport (DAY) | Dayton, Ohio, United States | |
| 12 | 76.21 miles (122.64 km) WSW | Dayton–Wright Brothers Airport (MGY) | Dayton, Ohio, United States | |
| 13 | 77.35 miles (124.48 km) NW | Lima Allen County Airport (AOH) | Lima, Ohio, United States | |
| 14 | 80.01 miles (128.77 km) S | Greater Portsmouth Regional Airport (PMH) | Portsmouth, Ohio, United States | |
| 15 | 80.34 miles (129.29 km) NE | Wayne County Airport (BJJ) | Wooster, Ohio, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,361.19 miles (18,284.02 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,338.05 miles (18,246.77 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,318.85 miles (18,215.88 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,313.75 miles (18,207.68 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,271.18 miles (18,139.16 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,257.87 miles (18,117.74 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,252.29 miles (18,108.77 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 11,247.73 miles (18,101.43 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,225.30 miles (18,065.32 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 11,223.75 miles (18,062.84 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,173.66 miles (17,982.21 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,140.36 miles (17,928.63 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,132.25 miles (17,915.57 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,122.31 miles (17,899.58 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,076.94 miles (17,826.56 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 18.42 miles (29.64 km) SE | College Park Airport (CGS) | College Park, Maryland, United States | |
| 2 | 20.51 miles (33.01 km) NNW | Frederick Municipal Airport (FDK) | Frederick, Maryland, United States | |
| 3 | 21.89 miles (35.23 km) WSW | Leesburg Executive Airport (JYO) | Leesburg, Virginia, United States | |
| 4 | 21.93 miles (35.30 km) SW | Washington Dulles International Airport (IAD) | Washington, D.C. / Virginia, United States | |
| 5 | 22.53 miles (36.27 km) ESE | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 6 | 22.90 miles (36.85 km) SSE | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 7 | 23.89 miles (38.45 km) SSE | Bolling Air Force Base (BOF) | Washington, D.C., United States | |
| 8 | 26.66 miles (42.91 km) E | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| 9 | 29.46 miles (47.42 km) SSE | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 10 | 31.33 miles (50.42 km) S | Davison Army Airfield (DAA) | Fort Belvoir, Virginia, United States | |
| 11 | 35.65 miles (57.38 km) ESE | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 12 | 36.14 miles (58.17 km) SSW | Manassas Regional Airport (HEF) | Manassas, Virginia, United States | |
| 13 | 36.14 miles (58.17 km) SSW | Manassas Regional Airport (MNZ) | Manassas, Virginia, United States | |
| 14 | 41.68 miles (67.08 km) ENE | Martin State Airport (MTN) | Baltimore, Maryland, United States | |
| 15 | 46.66 miles (75.10 km) WNW | Eastern WV Regional Airport (MRB) | Martinsburg, West Virginia, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,666.70 miles (18,775.69 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,643.21 miles (18,737.88 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,626.78 miles (18,711.44 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,618.29 miles (18,697.78 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,569.54 miles (18,619.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,562.29 miles (18,607.65 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,557.61 miles (18,600.12 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,547.00 miles (18,583.04 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,531.89 miles (18,558.73 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,512.82 miles (18,528.04 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,450.47 miles (18,427.70 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,417.88 miles (18,375.26 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,407.68 miles (18,358.84 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,401.53 miles (18,348.94 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,328.35 miles (18,231.17 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |