Nonstop flight route between Covilhã, Portugal and Rockland, Maine, United States:
Departure Airport:
(40°15'52"N by 7°28'48"W)
Arrival Airport:
(44°3'36"N by 69°5'57"W)
Distance from COV to RKD:
3,092.38 miles (4,976.69 km)
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Jump to:
- About this route
- COV Airport Information
- RKD Airport Information
- Facts about COV
- Facts about RKD
- Map of Nearest Airports to COV
- List of Nearest Airports to COV
- Map of Furthest Airports from COV
- List of Furthest Airports from COV
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
About this route:
A direct, nonstop flight between Covilhã Airport (COV), Covilhã, Portugal and Knox County Regional Airport (RKD), Rockland, Maine, United States would travel a Great Circle distance of 3,092 miles (or 4,977 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 Covilhã Airport and Knox County Regional 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 Covilhã Airport and Knox County Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | COV / LPCV |
| Airport Name: | Covilhã Airport |
| Location: | Covilhã, Portugal |
| GPS Coordinates: | 40°15'52"N by 7°28'48"W |
| Elevation: | 1572 feet (479 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from COV |
| More Information: | COV Maps & Info |
Arrival 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 |
Facts about Covilhã Airport (COV):
- Covilhã Airport (COV) currently has only 1 runway.
- The furthest airport from Covilhã Airport (COV) is Takaka Aerodrome (KTF), which is nearly antipodal to Covilhã Airport (meaning Covilhã Airport is almost on the exact opposite side of the Earth from Takaka Aerodrome), and is located 12,390 miles (19,940 kilometers) away in Takaka, New Zealand.
- The closest airport to Covilhã Airport (COV) is Coimbra Airport (CBP), which is located 53 miles (85 kilometers) W of COV.
Facts about Knox County Regional Airport (RKD):
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- Knox County Regional Airport (RKD) has 2 runways.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 52.77 miles (84.93 km) W | Coimbra Airport (CBP) | Coimbra, Portugal |     |
| 2 | 71.09 miles (114.41 km) N | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 3 | 91.82 miles (147.78 km) NW | Francisco Sá Carneiro Airport (OPO) | Porto, Portugal | |
| 4 | 101.16 miles (162.80 km) SSE | Badajoz Airport (BJZ) | Badajoz, Spain | |
| 5 | 104.32 miles (167.89 km) NNW | Braga Airport (BGZ) | Braga, Portugal | |
| 6 | 114.10 miles (183.63 km) ENE | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 7 | 117.12 miles (188.49 km) NNE | Bragança Airport (BGC) | Bragança, Portugal | |
| 8 | 135.57 miles (218.17 km) SW | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |
| 9 | 148.24 miles (238.57 km) NNW | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 10 | 152.96 miles (246.16 km) S | Beja Airport (BYJ) | Beja, Portugal | |
| 11 | 169.42 miles (272.65 km) NE | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 12 | 186.32 miles (299.86 km) NNE | León Airport (LEN) | León, Spain | |
| 13 | 188.14 miles (302.79 km) NNW | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 14 | 206.79 miles (332.80 km) E | Adolfo Suárez Madrid–Barajas Airport[1] (MAD) | Madrid, Spain | |
| 15 | 210.75 miles (339.17 km) ESE | Ciudad Real Central Airport (CQM) | Ciudad Real, Spain | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,390.18 miles (19,940.01 km) SSW | Takaka Aerodrome (KTF) | Takaka, New Zealand | |
| 2 | 12,372.49 miles (19,911.55 km) SSW | Motueka Aerodrome (MZP) | Motueka, New Zealand | |
| 3 | 12,356.51 miles (19,885.83 km) SSW | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 4 | 12,325.10 miles (19,835.28 km) SW | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 5 | 12,323.84 miles (19,833.24 km) SSE | Westport Airport (WSZ) | Westport, New Zealand | |
| 6 | 12,313.00 miles (19,815.81 km) SW | New Plymouth Airport (NPL) | New Plymouth, New Zealand | |
| 7 | 12,302.78 miles (19,799.36 km) W | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 8 | 12,299.90 miles (19,794.73 km) WSW | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 9 | 12,296.53 miles (19,789.29 km) WSW | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 10 | 12,277.33 miles (19,758.40 km) SSW | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 11 | 12,273.55 miles (19,752.31 km) W | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 12 | 12,270.08 miles (19,746.72 km) SSE | Greymouth Airport (GMN) | Greymouth, New Zealand | |
| 13 | 12,266.32 miles (19,740.67 km) WSW | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 14 | 12,249.89 miles (19,714.24 km) SSE | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 15 | 12,219.54 miles (19,665.39 km) WSW | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 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 | |