Nonstop flight route between Covilhã, Portugal and Adak Island, Alaska, United States:
Departure Airport:
(40°15'52"N by 7°28'48"W)
Arrival Airport:
(51°52'41"N by 176°38'45"W)
Distance from COV to ADK:
6,037.08 miles (9,715.71 km)
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Jump to:
- About this route
- COV Airport Information
- ADK Airport Information
- Facts about COV
- Facts about ADK
- 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 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 Covilhã Airport (COV), Covilhã, Portugal and Adak Airport (ADK), Adak Island, Alaska, United States would travel a Great Circle distance of 6,037 miles (or 9,716 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 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 Covilhã 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: | 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: | 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 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 Adak Airport (ADK):
- Adak Airport (ADK) has 2 runways.
- The closest airport to Adak Airport (ADK) is Atka Airport (AKB), which is located 106 miles (171 kilometers) ENE of ADK.
- 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.
- 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.
| 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 | 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 | |