Nonstop flight route between Rockland, Maine, United States and Salem, Illinois, United States:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(38°38'34"N by 88°57'51"W)
Distance from RKD to SLO:
1,092.87 miles (1,758.81 km)
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Jump to:
- About this route
- RKD Airport Information
- SLO Airport Information
- Facts about RKD
- Facts about SLO
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
- Map of Nearest Airports to SLO
- List of Nearest Airports to SLO
- Map of Furthest Airports from SLO
- List of Furthest Airports from SLO
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Salem–Leckrone Airport (SLO), Salem, Illinois, United States would travel a Great Circle distance of 1,093 miles (or 1,759 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 Knox County Regional Airport and Salem–Leckrone Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | RKD / KRKD |
| Airport Name: | Knox County Regional Airport |
| Location: | Rockland, Maine, United States |
| GPS Coordinates: | 44°3'36"N by 69°5'57"W |
| Area Served: | Rockland, Maine |
| Operator/Owner: | Knox County |
| Airport Type: | Public |
| Elevation: | 56 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKD |
| More Information: | RKD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SLO / KSLO |
| Airport Name: | Salem–Leckrone Airport |
| Location: | Salem, Illinois, United States |
| GPS Coordinates: | 38°38'34"N by 88°57'51"W |
| Area Served: | Salem, Illinois |
| Operator/Owner: | Salem Airport Authority |
| Airport Type: | Public |
| Elevation: | 573 feet (175 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SLO |
| More Information: | SLO Maps & Info |
Facts about Knox County Regional Airport (RKD):
- The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
- Knox County Regional Airport (RKD) has 2 runways.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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 furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
Facts about Salem–Leckrone Airport (SLO):
- The furthest airport from Salem–Leckrone Airport (SLO) is Margaret River Airport (MGV), which is located 11,062 miles (17,802 kilometers) away in Margaret River, Western Australia, Australia.
- Salem–Leckrone Airport (SLO) currently has only 1 runway.
- The closest airport to Salem–Leckrone Airport (SLO) is Mt. Vernon Airport (MVN), which is located 23 miles (37 kilometers) SSE of SLO.
- Because of Salem–Leckrone Airport's relatively low elevation of 573 feet, planes can take off or land at Salem–Leckrone 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.
- Salem–Leckrone Airport covers an area of 364 acres at an elevation of 573 feet above mean sea level.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 31.23 miles (50.26 km) WSW | Wiscasset Airport (ISS) | Wiscasset, Maine, United States |     |
| 2 | 38.99 miles (62.74 km) WNW | Augusta State Airport (AUG) | Augusta, Maine, United States | |
| 3 | 43.32 miles (69.71 km) WSW | Naval Air Station Brunswick (NHZ) | Brunswick, Maine, United States | |
| 4 | 43.38 miles (69.82 km) NW | Waterville Robert Lafleur Airport (WVL) | Waterville, Maine, United States | |
| 5 | 45.35 miles (72.99 km) NE | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 53.33 miles (85.83 km) NNE | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 7 | 58.82 miles (94.66 km) W | Auburn/Lewiston Municipal Airport (LEW) | Auburn/Lewiston, Maine, United States | |
| 8 | 59.05 miles (95.03 km) NW | Central Maine Airport of Norridgewock (OWK) | Norridgewock, Maine, United States | |
| 9 | 65.12 miles (104.80 km) NNE | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 10 | 66.73 miles (107.38 km) WSW | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 11 | 91.96 miles (148.00 km) W | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 12 | 92.58 miles (148.99 km) WSW | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 13 | 108.65 miles (174.86 km) WNW | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 14 | 109.11 miles (175.59 km) NE | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 15 | 109.78 miles (176.68 km) SW | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,707.78 miles (18,841.79 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,704.56 miles (18,836.61 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,701.73 miles (18,832.06 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,680.66 miles (18,798.16 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,655.50 miles (18,757.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,634.75 miles (18,724.26 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,567.46 miles (18,615.98 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,566.96 miles (18,615.17 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 11,555.62 miles (18,596.91 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,511.65 miles (18,526.16 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,459.54 miles (18,442.29 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,374.24 miles (18,305.01 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,372.20 miles (18,301.73 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,361.85 miles (18,285.08 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,361.47 miles (18,284.47 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.80 miles (36.69 km) SSE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 2 | 26.05 miles (41.92 km) WNW | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 3 | 47.52 miles (76.48 km) W | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 60.74 miles (97.76 km) WNW | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 5 | 61.39 miles (98.80 km) S | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 6 | 61.76 miles (99.38 km) SSW | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 7 | 64.55 miles (103.88 km) W | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 8 | 68.42 miles (110.11 km) NNE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 9 | 73.73 miles (118.66 km) E | Lawrenceville–Vincennes International Airport (LWV) | Lawrenceville, Illinois, United States | |
| 10 | 75.69 miles (121.81 km) W | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 11 | 76.24 miles (122.70 km) E | O'Neal Airport (OEA) | Vincennes, Indiana, United States | |
| 12 | 80.22 miles (129.10 km) E | Ed-Air Airport (OTN) | Oaktown, Indiana, United States | |
| 13 | 82.50 miles (132.78 km) N | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 14 | 87.81 miles (141.32 km) ENE | Sullivan County Airport (SIV) | Sullivan, Indiana, United States | |
| 15 | 88.19 miles (141.93 km) ESE | Evansville Regional Airport (EVV) | Evansville, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,061.93 miles (17,802.41 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,039.84 miles (17,766.86 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,017.17 miles (17,730.38 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,014.01 miles (17,725.28 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,986.57 miles (17,681.13 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,971.12 miles (17,656.27 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,961.97 miles (17,641.53 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,957.97 miles (17,635.11 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,939.06 miles (17,604.66 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,921.98 miles (17,577.18 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,919.07 miles (17,572.50 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,901.66 miles (17,544.47 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,869.48 miles (17,492.69 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,868.64 miles (17,491.33 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,859.47 miles (17,476.58 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |