About this route:

A direct, nonstop flight between Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States and Hollis Clark Bay Seaplane Base (HYL), Hollis, Alaska, United States would travel a Great Circle distance of 2,144 miles (or 3,451 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 Casco Cove Coast Guard Station and Hollis Clark Bay Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

IATA / ICAO Codes: ATU / PAAT
Airport Names:
  1. Casco Cove Coast Guard Station
  2. LORAN Station Attu
  3. (former Naval Air Facility Attu)
Location: Attu Island, Alaska, United States
GPS Coordinates: 52°49'57"N by 173°10'32"E
Operator/Owner: U.S. Coast Guard 17th Dist.
Airport Type: Private use
Elevation: 88 feet (27 meters)
# of Runways: 1
View all routes: Routes from ATU
More Information: ATU Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: HYL /
Airport Name: Hollis Clark Bay Seaplane Base
Location: Hollis, Alaska, United States
GPS Coordinates: 55°29'26"N by 132°37'24"W
Area Served: Hollis, Alaska
Operator/Owner: State of Alaska DOT&PF - Southeastern Region
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from HYL
More Information: HYL Maps & Info

Facts about Casco Cove Coast Guard Station (ATU):

  • Established as Naval Air Facility Attu on June 7, 1943, just seven days after Attu Island was declared secured.
  • Because of Casco Cove Coast Guard Station's relatively low elevation of 88 feet, planes can take off or land at Casco Cove Coast Guard Station 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.
  • In addition to being known as "Casco Cove Coast Guard Station", other names for ATU include "LORAN Station Attu" and "(former Naval Air Facility Attu)".
  • The furthest airport from Casco Cove Coast Guard Station (ATU) is Cape Town International Airport (CPT), which is located 10,631 miles (17,109 kilometers) away in Cape Town, South Africa.
  • The closest airport to Casco Cove Coast Guard Station (ATU) is Eareckson Air Station (SYA), which is located 40 miles (65 kilometers) ESE of ATU.
  • The island is protected as part of the National Parks Trust territory and few people visit the island or area, as it is restricted.
  • Casco Cove Coast Guard Station (ATU) currently has only 1 runway.
  • On January 1, 1945, 2nd Lt.

Facts about Hollis Clark Bay Seaplane Base (HYL):

  • The furthest airport from Hollis Clark Bay Seaplane Base (HYL) is Port Alfred Airport (AFD), which is located 10,631 miles (17,108 kilometers) away in Port Alfred, South Africa.
  • Hollis Clark Bay Seaplane Base (HYL) currently has only 1 runway.
  • Because of Hollis Clark Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hollis Clark Bay Seaplane Base 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 Hollis Clark Bay Seaplane Base (HYL) is Thorne Bay Seaplane Base (KTB), which is located only 14 miles (23 kilometers) NNE of HYL.
  • As per Federal Aviation Administration records, the airport had 1,661 passenger boardings in calendar year 2008, 1,820 enplanements in 2009, and 1,965 in 2010.

Map of Nearest Airports to Casco Cove Coast Guard Station:

List of Nearest Airports to Casco Cove Coast Guard Station:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
140.08 miles (64.50 km) ESEEareckson Air Station (SYA)Shemya, Alaska, United StatesView Eareckson Air Station on a map Set SYA as origin Airport Set SYA as destination Airport Get more information about Eareckson Air Station
2434.18 miles (698.74 km) EAdak Airport (ADK)Adak Island, Alaska, United StatesView Adak Airport on a map Set ADK as origin Airport Set ADK as destination Airport Get more information about Adak Airport
3531.42 miles (855.23 km) EAtka Airport (AKB)Atka, Alaska, United StatesView Atka Airport on a map Set AKB as origin Airport Set AKB as destination Airport Get more information about Atka Airport
4611.52 miles (984.14 km) WYelizovo Airport (PKC)Petropavlovsk-Kamchatsky, RussiaView Yelizovo Airport on a map Set PKC as origin Airport Set PKC as destination Airport Get more information about Yelizovo Airport
5720.55 miles (1,159.60 km) ENESt. Paul Island Airport (SNP)St. Paul Island, Alaska, United StatesView St. Paul Island Airport on a map Set SNP as origin Airport Set SNP as destination Airport Get more information about St. Paul Island Airport
6729.92 miles (1,174.68 km) ENESt. George Airport (STG)St. George, Alaska, United StatesView St. George Airport on a map Set STG as origin Airport Set STG as destination Airport Get more information about St. George Airport
7747.48 miles (1,202.95 km) ENikolski Air Station (IKO)Nikolski, Alaska, United StatesView Nikolski Air Station on a map Set IKO as origin Airport Set IKO as destination Airport Get more information about Nikolski Air Station
8823.34 miles (1,325.04 km) NMarkovo Airport (KVM)Markovo, Chukotka Autonomous Okrug, RussiaView Markovo Airport on a map Set KVM as origin Airport Set KVM as destination Airport Get more information about Markovo Airport
9836.44 miles (1,346.12 km) ENEUnalaska Airport (DUT)Unalaska, Alaska, United StatesView Unalaska Airport on a map Set DUT as origin Airport Set DUT as destination Airport Get more information about Unalaska Airport
10837.95 miles (1,348.54 km) NUgolny Airport (DYR)Anadyr, RussiaView Ugolny Airport on a map Set DYR as origin Airport Set DYR as destination Airport Get more information about Ugolny Airport
11866.70 miles (1,394.82 km) ENEAkutan Seaplane Base (KQA)Akutan, Alaska, United StatesView Akutan Seaplane Base on a map Set KQA as origin Airport Set KQA as destination Airport Get more information about Akutan Seaplane Base
12928.25 miles (1,493.87 km) NNEGambell Airport (GAM)Gambell, Alaska, United StatesView Gambell Airport on a map Set GAM as origin Airport Set GAM as destination Airport Get more information about Gambell Airport
13931.23 miles (1,498.67 km) NNEProvideniya Bay Airport (PVS)Provideniya, Chukotka, RussiaView Provideniya Bay Airport on a map Set PVS as origin Airport Set PVS as destination Airport Get more information about Provideniya Bay Airport
14933.22 miles (1,501.86 km) NEMekoryuk Airport (MYU)Mekoryuk, Alaska, United StatesView Mekoryuk Airport on a map Set MYU as origin Airport Set MYU as destination Airport Get more information about Mekoryuk Airport
15950.66 miles (1,529.94 km) NNESavoonga Airport (SVA)Savoonga, Alaska, United StatesView Savoonga Airport on a map Set SVA as origin Airport Set SVA as destination Airport Get more information about Savoonga Airport

Map of Furthest Airports from Casco Cove Coast Guard Station:

List of Furthest Airports from Casco Cove Coast Guard Station:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,631.23 miles (17,109.27 km) SWCape Town International Airport (CPT)Cape Town, South AfricaView Cape Town International Airport on a map Set CPT as origin Airport Set CPT as destination Airport Get more information about Cape Town International Airport
210,501.26 miles (16,900.10 km) WSWGeorge Airport (GRJ)George, South AfricaView George Airport on a map Set GRJ as origin Airport Set GRJ as destination Airport Get more information about George Airport
310,458.69 miles (16,831.59 km) SETeniente Rodolfo Marsh Airport (TNM)Villa Las Estrellas, AntarcticaView Teniente Rodolfo Marsh Airport on a map Set TNM as origin Airport Set TNM as destination Airport Get more information about Teniente Rodolfo Marsh Airport
410,431.40 miles (16,787.68 km) SWKleinsee Airport (KLZ)Kleinzee, South AfricaView Kleinsee Airport on a map Set KLZ as origin Airport Set KLZ as destination Airport Get more information about Kleinsee Airport
510,381.55 miles (16,707.44 km) WSWPort Elizabeth International Airport (PLZ)Port Elizabeth, South AfricaView Port Elizabeth International Airport on a map Set PLZ as origin Airport Set PLZ as destination Airport Get more information about Port Elizabeth International Airport
610,381.37 miles (16,707.15 km) SWAlexander Bay Airport (ALJ)Alexander Bay, South AfricaView Alexander Bay Airport on a map Set ALJ as origin Airport Set ALJ as destination Airport Get more information about Alexander Bay Airport
710,354.51 miles (16,663.93 km) SWAggeneys Airport (AGZ)Aggeneys, South AfricaView Aggeneys Airport on a map Set AGZ as origin Airport Set AGZ as destination Airport Get more information about Aggeneys Airport
810,354.51 miles (16,663.92 km) SWWild Coast Sun Airport (MZF)Mzamba, South AfricaView Wild Coast Sun Airport on a map Set MZF as origin Airport Set MZF as destination Airport Get more information about Wild Coast Sun Airport
910,326.08 miles (16,618.18 km) ESEPort Stanley Airport (PSY)Stanley, Falkland Islands, United KingdomView Port Stanley Airport on a map Set PSY as origin Airport Set PSY as destination Airport Get more information about Port Stanley Airport
1010,311.35 miles (16,594.46 km) WSWPort Alfred Airport (AFD)Port Alfred, South AfricaView Port Alfred Airport on a map Set AFD as origin Airport Set AFD as destination Airport Get more information about Port Alfred Airport
1110,303.30 miles (16,581.51 km) ESERAF Mount Pleasant (MPN)Falkland IslandsView RAF Mount Pleasant on a map Set MPN as origin Airport Set MPN as destination Airport Get more information about RAF Mount Pleasant
1210,302.39 miles (16,580.04 km) SWLüderitz Airport (LUD)Luderitz, NamibiaView Lüderitz Airport on a map Set LUD as origin Airport Set LUD as destination Airport Get more information about Lüderitz Airport
1310,282.92 miles (16,548.71 km) SWKarasburg Airport (KAS)Karasburg, NamibiaView Karasburg Airport on a map Set KAS as origin Airport Set KAS as destination Airport Get more information about Karasburg Airport
1410,248.62 miles (16,493.52 km) WSWEast London Airport (ELS)East London, South AfricaView East London Airport on a map Set ELS as origin Airport Set ELS as destination Airport Get more information about East London Airport
1510,224.59 miles (16,454.85 km) SWUpington Airport (UTN)Upington, South AfricaView Upington Airport on a map Set UTN as origin Airport Set UTN as destination Airport Get more information about Upington Airport

Map of Nearest Airports to Hollis Clark Bay Seaplane Base:

List of Nearest Airports to Hollis Clark Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
114.06 miles (22.63 km) NNEThorne Bay Seaplane Base (KTB)Thorne Bay, Alaska, United StatesView Thorne Bay Seaplane Base on a map Set KTB as destination Airport Set KTB as destination Airport Get more information about Thorne Bay Seaplane Base
218.72 miles (30.13 km) WNWKlawock Airport (KLW)Klawock, Alaska, United StatesView Klawock Airport on a map Set KLW as destination Airport Set KLW as destination Airport Get more information about Klawock Airport
320.54 miles (33.05 km) WCraig Seaplane Base (CGA)Craig, Alaska, United StatesView Craig Seaplane Base on a map Set CGA as destination Airport Set CGA as destination Airport Get more information about Craig Seaplane Base
421.22 miles (34.15 km) SSWHydaburg Seaplane Base (HYG)Hydaburg, Alaska, United StatesView Hydaburg Seaplane Base on a map Set HYG as destination Airport Set HYG as destination Airport Get more information about Hydaburg Seaplane Base
527.77 miles (44.70 km) WSWWaterfall Seaplane Base (KWF)Waterfall, Alaska, United StatesView Waterfall Seaplane Base on a map Set KWF as destination Airport Set KWF as destination Airport Get more information about Waterfall Seaplane Base
634.21 miles (55.05 km) NWNaukati Bay Seaplane Base (WNC)Tuxekan Island, Alaska, United StatesView Naukati Bay Seaplane Base on a map Set WNC as destination Airport Set WNC as destination Airport Get more information about Naukati Bay Seaplane Base
737.00 miles (59.55 km) ESEKetchikan International Airport (KTN)Ketchikan, Alaska, United StatesView Ketchikan International Airport on a map Set KTN as destination Airport Set KTN as destination Airport Get more information about Ketchikan International Airport
837.13 miles (59.75 km) NNWCoffman Cove Seaplane Base (KCC)Coffman Cove, Alaska, United StatesView Coffman Cove Seaplane Base on a map Set KCC as destination Airport Set KCC as destination Airport Get more information about Coffman Cove Seaplane Base
938.99 miles (62.75 km) ESEKetchikan Harbor Seaplane Base (WFB)Ketchikan, Alaska, United StatesView Ketchikan Harbor Seaplane Base on a map Set WFB as destination Airport Set WFB as destination Airport Get more information about Ketchikan Harbor Seaplane Base
1041.25 miles (66.38 km) NWTokeen Seaplane Base (TKI)Tokeen, Alaska, United StatesView Tokeen Seaplane Base on a map Set TKI as destination Airport Set TKI as destination Airport Get more information about Tokeen Seaplane Base
1147.37 miles (76.23 km) NNWNorth Whale Seaplane Base (WWP)North Whale Pass, Alaska, United StatesView North Whale Seaplane Base on a map Set WWP as destination Airport Set WWP as destination Airport Get more information about North Whale Seaplane Base
1248.03 miles (77.30 km) ESEMetlakatla Seaplane Base (MTM)Metlakatla, Annette Island, Alaska, United StatesView Metlakatla Seaplane Base on a map Set MTM as destination Airport Set MTM as destination Airport Get more information about Metlakatla Seaplane Base
1351.69 miles (83.18 km) SEAnnette Island Airport (ANN)Annette Island, Alaska, United StatesView Annette Island Airport on a map Set ANN as destination Airport Set ANN as destination Airport Get more information about Annette Island Airport
1469.37 miles (111.64 km) NWrangell Airport (WRG)Wrangell, Alaska, United StatesView Wrangell Airport on a map Set WRG as destination Airport Set WRG as destination Airport Get more information about Wrangell Airport
1569.38 miles (111.66 km) NNWPort Protection Seaplane Base (PPV)Port Protection, Alaska, United StatesView Port Protection Seaplane Base on a map Set PPV as destination Airport Set PPV as destination Airport Get more information about Port Protection Seaplane Base

Map of Furthest Airports from Hollis Clark Bay Seaplane Base:

List of Furthest Airports from Hollis Clark Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,630.60 miles (17,108.25 km) SEPort Alfred Airport (AFD)Port Alfred, South AfricaView Port Alfred Airport on a map Set AFD as destination Airport Set AFD as destination Airport Get more information about Port Alfred Airport
210,623.24 miles (17,096.40 km) SEPort Elizabeth International Airport (PLZ)Port Elizabeth, South AfricaView Port Elizabeth International Airport on a map Set PLZ as destination Airport Set PLZ as destination Airport Get more information about Port Elizabeth International Airport
310,622.28 miles (17,094.86 km) SEEast London Airport (ELS)East London, South AfricaView East London Airport on a map Set ELS as destination Airport Set ELS as destination Airport Get more information about East London Airport
410,549.11 miles (16,977.11 km) SEMthatha Airport (UTT)Mthatha, South AfricaView Mthatha Airport on a map Set UTT as destination Airport Set UTT as destination Airport Get more information about Mthatha Airport
510,542.45 miles (16,966.38 km) SSEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as destination Airport Set MGH as destination Airport Get more information about Margate Airport
610,532.64 miles (16,950.61 km) SEGeorge Airport (GRJ)George, South AfricaView George Airport on a map Set GRJ as destination Airport Set GRJ as destination Airport Get more information about George Airport
710,477.78 miles (16,862.32 km) SSEKing Shaka International (DUR)Durban, KwaZulu-Natal, South AfricaView King Shaka International on a map Set DUR as destination Airport Set DUR as destination Airport Get more information about King Shaka International
810,465.22 miles (16,842.10 km) SSEPietermaritzburg Airport (PZB)Pietermaritzburg, South AfricaView Pietermaritzburg Airport on a map Set PZB as destination Airport Set PZB as destination Airport Get more information about Pietermaritzburg Airport
910,443.15 miles (16,806.57 km) SELebakeng Airport (LEF)Lebakeng, LesothoView Lebakeng Airport on a map Set LEF as destination Airport Set LEF as destination Airport Get more information about Lebakeng Airport
1010,439.56 miles (16,800.80 km) SSERichards Bay Airport (RCB)Richards Bay, KwaZulu-Natal, South AfricaView Richards Bay Airport on a map Set RCB as destination Airport Set RCB as destination Airport Get more information about Richards Bay Airport
1110,427.72 miles (16,781.75 km) SELesobeng Airport (LES)Lesobeng, LesothoView Lesobeng Airport on a map Set LES as destination Airport Set LES as destination Airport Get more information about Lesobeng Airport
1210,426.19 miles (16,779.29 km) SESemonkong Airport (SOK)Semonkong, LesothoView Semonkong Airport on a map Set SOK as destination Airport Set SOK as destination Airport Get more information about Semonkong Airport
1310,413.80 miles (16,759.35 km) SECape Town International Airport (CPT)Cape Town, South AfricaView Cape Town International Airport on a map Set CPT as destination Airport Set CPT as destination Airport Get more information about Cape Town International Airport
1410,413.33 miles (16,758.59 km) SEMokhotlong Airport (MKH)Mokhotlong, LesothoView Mokhotlong Airport on a map Set MKH as destination Airport Set MKH as destination Airport Get more information about Mokhotlong Airport
1510,404.65 miles (16,744.63 km) SEMafeteng Airport (MFC)Mafeteng, LesothoView Mafeteng Airport on a map Set MFC as destination Airport Set MFC as destination Airport Get more information about Mafeteng Airport