Nonstop flight route between Rockland, Maine, United States and Adak Island, Alaska, United States:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(51°52'41"N by 176°38'45"W)
Distance from RKD to ADK:
4,531.53 miles (7,292.78 km)
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Jump to:
- About this route
- RKD Airport Information
- ADK Airport Information
- Facts about RKD
- Facts about ADK
- 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 ADK
- List of Nearest Airports to ADK
- Map of Furthest Airports from ADK
- List of Furthest Airports from ADK
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Adak Airport (ADK), Adak Island, Alaska, United States would travel a Great Circle distance of 4,532 miles (or 7,293 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 large distance between Knox County Regional Airport and Adak Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Knox County Regional Airport and Adak Airport. You'll see that it will travel the same route of the red line on this map!
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: | ADK / PADK |
| Airport Name: | Adak Airport |
| Location: | Adak Island, Alaska, United States |
| GPS Coordinates: | 51°52'41"N by 176°38'45"W |
| Area Served: | Adak Island, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 18 feet (5 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ADK |
| More Information: | ADK 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.
- 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.
- Knox County Regional Airport (RKD) has 2 runways.
- As per Federal Aviation Administration records, the airport had 13,866 passenger boardings in calendar year 2008, 14,461 enplanements in 2009, and 17,657 in 2010.
Facts about Adak Airport (ADK):
- The closest airport to Adak Airport (ADK) is Atka Airport (AKB), which is located 106 miles (171 kilometers) ENE of ADK.
- Adak Airport (ADK) has 2 runways.
- The furthest airport from Adak Airport (ADK) is Cape Town International Airport (CPT), which is located 10,985 miles (17,679 kilometers) away in Cape Town, South Africa.
- Scheduled passenger service service is subsidized by the Essential Air Service program.
- Once an American Airlines Boeing 777-200 from Dallas-Fort Worth International Airport en route to Tokyo Narita diverted to Adak Airport due to a fire warning in the cargo hold.
- Because of Adak Airport's relatively low elevation of 18 feet, planes can take off or land at Adak 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 AAF turned Adak over to the Navy who established anti-submarine warfare base there.
| 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 | 106.34 miles (171.14 km) ENE | Atka Airport (AKB) | Atka, Alaska, United States | |
| 2 | 336.57 miles (541.65 km) ENE | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 3 | 394.42 miles (634.75 km) WNW | Eareckson Air Station (SYA) | Shemya, Alaska, United States | |
| 4 | 429.63 miles (691.43 km) NE | St. George Airport (STG) | St. George, Alaska, United States | |
| 5 | 434.18 miles (698.74 km) WNW | Casco Cove Coast Guard Station (ATU) | Attu Island, Alaska, United States | |
| 6 | 443.19 miles (713.24 km) ENE | Unalaska Airport (DUT) | Unalaska, Alaska, United States | |
| 7 | 446.73 miles (718.95 km) NNE | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 8 | 477.38 miles (768.27 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 9 | 581.92 miles (936.51 km) ENE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 10 | 603.62 miles (971.42 km) ENE | Pauloff Harbor Seaplane Base (KPH) | Sanak Island, Alaska, United States | |
| 11 | 614.76 miles (989.36 km) ENE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 12 | 630.55 miles (1,014.77 km) ENE | King Cove Airport (KVC) | King Cove, Alaska, United States | |
| 13 | 689.42 miles (1,109.51 km) ENE | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 14 | 700.58 miles (1,127.47 km) ENE | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 15 | 708.16 miles (1,139.68 km) NNE | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,985.34 miles (17,679.15 km) SW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,881.25 miles (17,511.64 km) SW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,778.05 miles (17,345.55 km) SW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,749.72 miles (17,299.96 km) SSW | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 5 | 10,711.57 miles (17,238.55 km) SW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,689.19 miles (17,202.54 km) SSW | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 7 | 10,685.68 miles (17,196.89 km) SSW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 8 | 10,685.67 miles (17,196.88 km) SSW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 9 | 10,650.66 miles (17,140.53 km) SW | East London Airport (ELS) | East London, South Africa | |
| 10 | 10,607.58 miles (17,071.20 km) SSW | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 11 | 10,589.31 miles (17,041.80 km) SSW | Lüderitz Airport (LUD) | Luderitz, Namibia | |
| 12 | 10,570.50 miles (17,011.53 km) SW | Upington Airport (UTN) | Upington, South Africa | |
| 13 | 10,537.93 miles (16,959.11 km) SW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 14 | 10,524.48 miles (16,937.47 km) SSW | Keetmanshoop Airport (KMP) | Keetmanshoop, Namibia | |
| 15 | 10,499.70 miles (16,897.59 km) SW | Kimberley Airport (KIM) | Kimberley, South Africa | |