Nonstop flight route between Rockland, Maine, United States and Arapahoe County, Colorado, United States:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(39°34'12"N by 104°50'57"W)
Distance from RKD to APA:
1,851.99 miles (2,980.48 km)
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Jump to:
- About this route
- RKD Airport Information
- APA Airport Information
- Facts about RKD
- Facts about APA
- 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 APA
- List of Nearest Airports to APA
- Map of Furthest Airports from APA
- List of Furthest Airports from APA
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Centennial Airport (APA), Arapahoe County, Colorado, United States would travel a Great Circle distance of 1,852 miles (or 2,980 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 Centennial 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: | APA / KAPA |
| Airport Name: | Centennial Airport |
| Location: | Arapahoe County, Colorado, United States |
| GPS Coordinates: | 39°34'12"N by 104°50'57"W |
| Area Served: | Denver, Colorado |
| Operator/Owner: | Arapahoe County Public Airport Authority |
| Airport Type: | Public |
| Elevation: | 5885 feet (1,794 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from APA |
| More Information: | APA Maps & Info |
Facts about Knox County Regional Airport (RKD):
- 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.
- Knox County Regional Airport (RKD) has 2 runways.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- 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 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.
Facts about Centennial Airport (APA):
- Centennial Airport (APA) has 3 runways.
- The furthest airport from Centennial Airport (APA) is Sir Gaëtan Duval Airport (RRG), which is located 10,899 miles (17,540 kilometers) away in Rodrigues Island, Mauritius.
- Located in Dove Valley, an unincorporated area of Arapahoe County, the airport’s runways extend into Douglas County.
- Centennial Airport does not offer scheduled airline passenger service.
- Because of Centennial Airport's high elevation of 5,885 feet, planes must typically fly at a faster airspeed in order to takeoff or land at APA. Combined with a high temperature, this could make APA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to Centennial Airport (APA) is Denver International Airport (DEN), which is located 22 miles (36 kilometers) NNE of APA.
- In 1985 a new control tower was built.
| 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 | 22.23 miles (35.77 km) NNE | Denver International Airport (DEN) | Denver, Colorado, United States | |
| 2 | 27.40 miles (44.09 km) NNW | Rocky Mountain Metropolitan Airport (BJC) | Denver, Colorado, United States | |
| 3 | 38.09 miles (61.31 km) NNW | Boulder Municipal Airport (WBU) | Boulder, Colorado, United States | |
| 4 | 40.06 miles (64.47 km) S | United States Air Force Academy (AFF) | Colorado Springs, Colorado, United States | |
| 5 | 53.40 miles (85.93 km) S | City of Colorado Springs Municipal Airport (COS) | Colorado Springs, Colorado, United States | |
| 6 | 61.02 miles (98.21 km) N | Greeley-Weld County Airport (GXY) | Greeley, Colorado, United States | |
| 7 | 61.54 miles (99.03 km) N | Fort Collins-Loveland Municipal Airport (FNL) | Fort Collins/Loveland, Colorado, United States | |
| 8 | 81.98 miles (131.94 km) WSW | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| 9 | 90.51 miles (145.66 km) SSE | Pueblo Memorial Airport (PUB) | Pueblo, Colorado, United States | |
| 10 | 95.91 miles (154.35 km) ENE | Colorado Plains Regional Airport (AKO) | Akron, Colorado, United States | |
| 11 | 96.02 miles (154.53 km) SW | Harriet Alexander Field (SLT) | Salida, Colorado, United States | |
| 12 | 108.00 miles (173.81 km) N | Francis E. Warren Air Force Base (FEW) | Cheyenne, Wyoming, United States | |
| 13 | 109.57 miles (176.34 km) N | Cheyenne Regional Airport (CYS) | Cheyenne, Wyoming, United States | |
| 14 | 110.21 miles (177.37 km) W | Eagle County Regional Airport (EGE) | Eagle, Colorado (near Vail), United States | |
| 15 | 110.46 miles (177.76 km) WSW | Aspen–Pitkin County Airport (ASE) | Aspen, Colorado, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,899.07 miles (17,540.31 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,757.90 miles (17,313.12 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,721.36 miles (17,254.31 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,701.44 miles (17,222.25 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,520.75 miles (16,931.47 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,410.99 miles (16,754.82 km) ESE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,396.62 miles (16,731.70 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 10,364.97 miles (16,680.77 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,300.32 miles (16,576.72 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,264.43 miles (16,518.95 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,251.95 miles (16,498.87 km) ESE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,231.40 miles (16,465.80 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,212.09 miles (16,434.73 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,209.72 miles (16,430.91 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 15 | 10,201.21 miles (16,417.21 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |