Nonstop flight route between Gaithersburg, Maryland, United States and Rockford, Illinois, United States:
Departure Airport:
(39°10'5"N by 77°9'57"W)
Arrival Airport:
(42°11'43"N by 89°5'49"W)
Distance from GAI to RFD:
658.53 miles (1,059.80 km)
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Jump to:
- About this route
- GAI Airport Information
- RFD Airport Information
- Facts about GAI
- Facts about RFD
- 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 RFD
- List of Nearest Airports to RFD
- Map of Furthest Airports from RFD
- List of Furthest Airports from RFD
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 659 miles (or 1,060 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 Chicago Rockford International 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: | RFD / KRFD |
| Airport Name: | Chicago Rockford International Airport |
| Location: | Rockford, Illinois, United States |
| GPS Coordinates: | 42°11'43"N by 89°5'49"W |
| Area Served: | Rockford, Illinois |
| Operator/Owner: | Greater Rockford Airport Authority |
| Airport Type: | Public |
| Elevation: | 742 feet (226 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RFD |
| More Information: | RFD Maps & Info |
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.
- 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.
- Montgomery County Airpark (GAI) currently has only 1 runway.
Facts about Chicago Rockford International Airport (RFD):
- RFD has two cargo aprons in use.
- The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
- After an 11-year hiatus, the airport resumed hosting airshows in 2005.
- The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
- Several airlines have previously served the airport including United Express, Hooters Air, Frontier, Midwest Connect, Midway Connection, Trans Meridian, American Eagle, TWA, Ozark, McClain, Direct Air, Northwest Airlink, etc.
- Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford 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.
- Following the war, the state of Illinois adopted the Airport Authority Act.
- Chicago Rockford International Airport (RFD) has 2 runways.
| 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 | 29.50 miles (47.48 km) N | Southern Wisconsin Regional Airport (JVL) | Janesville, Wisconsin, United States | |
| 2 | 43.30 miles (69.69 km) SE | Chicago/Aurora Municipal Airport (AUZ) | Aurora, Illinois, United States | |
| 3 | 47.89 miles (77.08 km) ESE | DuPage Airport (DPA) | West Chicago, Illinois, United States | |
| 4 | 58.34 miles (93.89 km) S | Illinois Valley Regional Airport (VYS) | Peru, Illinois, United States | |
| 5 | 61.49 miles (98.96 km) E | Chicago Executive Airport (PWK) | Chicago/Prospect Heights/Wheeling, Illinois, United States | |
| 6 | 62.95 miles (101.31 km) ESE | Chicago O'Hare International Airport (ORD) | Chicago, Illinois, United States | |
| 7 | 64.75 miles (104.20 km) ENE | Waukegan National Airport (UGN) | Chicago / Waukegan, Illinois, United States | |
| 8 | 65.58 miles (105.55 km) SE | Lewis University Airport (LOT) | Chicago / Romeoville, Illinois, United States | |
| 9 | 65.77 miles (105.84 km) ENE | Kenosha Regional Airport (ENW) | Kenosha, Wisconsin, United States | |
| 10 | 66.39 miles (106.84 km) N | Dane County Regional Airport (MSN) | Madison, Wisconsin, United States | |
| 11 | 66.64 miles (107.25 km) SE | Joliet Regional Airport (JOT) | Joliet, Illinois, United States | |
| 12 | 68.06 miles (109.54 km) WSW | Clinton Municipal Airport (CWI) | Clinton, Iowa, United States | |
| 13 | 73.00 miles (117.48 km) NE | Waukesha County Airport (UES) | Waukesha, Wisconsin, United States | |
| 14 | 74.62 miles (120.09 km) ESE | Chicago Midway International Airport (MDW) | Chicago, Illinois, United States | |
| 15 | 76.11 miles (122.49 km) ENE | John H. Batten Airport (RAC) | Racine, Wisconsin, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,008.37 miles (17,716.21 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,984.97 miles (17,678.55 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,968.42 miles (17,651.92 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,960.25 miles (17,638.77 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,915.23 miles (17,566.32 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,907.02 miles (17,553.10 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,902.27 miles (17,545.45 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,891.99 miles (17,528.92 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,873.66 miles (17,499.41 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,868.46 miles (17,491.04 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,817.93 miles (17,409.73 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,786.63 miles (17,359.36 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,775.52 miles (17,341.48 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,766.29 miles (17,326.62 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,728.09 miles (17,265.14 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |