Nonstop flight route between Gaithersburg, Maryland, United States and Defiance, Ohio, United States:
Departure Airport:
(39°10'5"N by 77°9'57"W)
Arrival Airport:
(41°20'14"N by 84°25'44"W)
Distance from GAI to DFI:
411.10 miles (661.60 km)
Share this route:
Jump to:
- About this route
- GAI Airport Information
- DFI Airport Information
- Facts about GAI
- Facts about DFI
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
- Map of Nearest Airports to DFI
- List of Nearest Airports to DFI
- Map of Furthest Airports from DFI
- List of Furthest Airports from DFI
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Defiance Memorial Airport (DFI), Defiance, Ohio, United States would travel a Great Circle distance of 411 miles (or 662 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 Montgomery County Airpark and Defiance Memorial Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | DFI / KDFI |
| Airport Name: | Defiance Memorial Airport |
| Location: | Defiance, Ohio, United States |
| GPS Coordinates: | 41°20'14"N by 84°25'44"W |
| Area Served: | Defiance, Ohio |
| Operator/Owner: | Board of County Commissioners |
| Airport Type: | Public |
| Elevation: | 707 feet (215 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DFI |
| More Information: | DFI Maps & Info |
Facts about Montgomery County Airpark (GAI):
- Montgomery County Airpark (GAI) currently has only 1 runway.
- 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.
- 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.
Facts about Defiance Memorial Airport (DFI):
- The furthest airport from Defiance Memorial Airport (DFI) is Margaret River Airport (MGV), which is located 11,256 miles (18,114 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Defiance Memorial Airport (DFI) is Toledo Express Airport (TOL), which is located 36 miles (59 kilometers) ENE of DFI.
- Defiance Memorial Airport (DFI) currently has only 1 runway.
- Because of Defiance Memorial Airport's relatively low elevation of 707 feet, planes can take off or land at Defiance Memorial 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.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 36.48 miles (58.71 km) ENE | Toledo Express Airport (TOL) | Toledo, Ohio, United States | |
| 2 | 39.80 miles (64.06 km) WNW | Tri-State Steuben County Airport (ANQ) | Angola, Indiana, United States | |
| 3 | 39.93 miles (64.26 km) WSW | Smith Field (SMD) | Fort Wayne, Indiana, United States | |
| 4 | 40.90 miles (65.82 km) NNE | Lenawee County Airport (ADG) | Adrian, Michigan, United States | |
| 5 | 41.27 miles (66.42 km) SSW | Decatur Hi-Way Airport (DCR) | Decatur, Indiana, United States | |
| 6 | 45.49 miles (73.21 km) ESE | Findlay Airport (FDY) | Findlay, Ohio, United States | |
| 7 | 46.96 miles (75.57 km) WSW | Fort Wayne International Airport (FWA) | Fort Wayne, Indiana, United States | |
| 8 | 48.24 miles (77.64 km) SSE | Lima Allen County Airport (AOH) | Lima, Ohio, United States | |
| 9 | 51.48 miles (82.84 km) ENE | Toledo Executive Airport (TDZ) | Toledo, Ohio, United States | |
| 10 | 58.71 miles (94.48 km) S | Neil Armstrong Airport (AXV) | Wapakoneta, Ohio, United States | |
| 11 | 63.80 miles (102.67 km) N | Jackson County Airport (JXN) | Jackson, Michigan, United States | |
| 12 | 70.59 miles (113.61 km) NNE | Ann Arbor Municipal Airport (ARB) | Ann Arbor, Michigan, United States | |
| 13 | 71.92 miles (115.74 km) W | Goshen Municipal Airport (GSH) | Goshen, Indiana, United States | |
| 14 | 77.54 miles (124.79 km) NE | Willow Run Airport (YIP) (YIP) | Detroit, Michigan, United States | |
| 15 | 79.18 miles (127.42 km) NNW | W. K. Kellogg Airport (BTL) | Battle Creek, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,255.61 miles (18,114.11 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,232.14 miles (18,076.34 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,216.08 miles (18,050.49 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,207.30 miles (18,036.35 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,160.65 miles (17,961.29 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,154.56 miles (17,951.47 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,148.08 miles (17,941.05 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,137.67 miles (17,924.30 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,121.35 miles (17,898.04 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,110.39 miles (17,880.40 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,055.94 miles (17,792.77 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,020.90 miles (17,736.37 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,016.66 miles (17,729.55 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,005.06 miles (17,710.88 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,955.55 miles (17,631.20 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |