About this route:

A direct, nonstop flight between Humacao Airport (HUC), Humacao, Puerto Rico, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 5,353 miles (or 8,615 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 Humacao Airport and St. Mary's 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 Humacao Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: HUC /
Airport Names:
  1. Humacao Airport
  2. X63
Location: Humacao, Puerto Rico, United States
GPS Coordinates: 18°8'17"N by 65°48'2"W
Area Served: Humacao, Puerto Rico
Operator/Owner: Puerto Rico Ports Authority
Airport Type: Public
Elevation: 33 feet (10 meters)
# of Runways: 1
View all routes: Routes from HUC
More Information: HUC Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: KSM / PASM
Airport Name: St. Mary's Airport
Location: St. Mary's, Alaska, United States
GPS Coordinates: 62°3'38"N by 163°18'6"W
Operator/Owner: Alaska DOT&PF
Airport Type: Public
Elevation: 312 feet (95 meters)
# of Runways: 2
View all routes: Routes from KSM
More Information: KSM Maps & Info

Facts about Humacao Airport (HUC):

  • In addition to being known as "Humacao Airport", another name for HUC is "X63".
  • Humacao Airport (HUC) currently has only 1 runway.
  • The furthest airport from Humacao Airport (HUC) is Barrow Island Airport (BWB), which is nearly antipodal to Humacao Airport (meaning Humacao Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,233 miles (19,686 kilometers) away in Barrow Island, Western Australia, Australia.
  • The closest airport to Humacao Airport (HUC) is Diego Jiménez Torres Airport (FAJ), which is located only 15 miles (24 kilometers) NE of HUC.
  • Because of Humacao Airport's relatively low elevation of 33 feet, planes can take off or land at Humacao 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.

Facts about St. Mary's Airport (KSM):

  • Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
  • St. Mary's Airport (KSM) has 2 runways.
  • The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.

Map of Nearest Airports to Humacao Airport:

List of Nearest Airports to Humacao Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
114.87 miles (23.93 km) NEDiego Jiménez Torres Airport (FAJ)Fajardo, Puerto Rico, United StatesView Diego Jiménez Torres Airport on a map Set FAJ as origin Airport Set FAJ as destination Airport Get more information about Diego Jiménez Torres Airport
220.17 miles (32.47 km) EAntonio Rivera Rodríguez Airport (VQS)Vieques, Puerto Rico, United StatesView Antonio Rivera Rodríguez Airport on a map Set VQS as origin Airport Set VQS as destination Airport Get more information about Antonio Rivera Rodríguez Airport
324.64 miles (39.65 km) NNWLuis Muñoz Marín International Airport (SJU)San Juan, Puerto RicoView Luis Muñoz Marín International Airport on a map Set SJU as origin Airport Set SJU as destination Airport Get more information about Luis Muñoz Marín International Airport
429.42 miles (47.35 km) NWFernando Luis Ribas Dominicci Airport (SIG)San Juan, Puerto RicoView Fernando Luis Ribas Dominicci Airport on a map Set SIG as origin Airport Set SIG as destination Airport Get more information about Fernando Luis Ribas Dominicci Airport
534.75 miles (55.93 km) ENEBenjamín Rivera Noriega Airport (CPX)Isla de Culebra, Puerto RicoView Benjamín Rivera Noriega Airport on a map Set CPX as origin Airport Set CPX as destination Airport Get more information about Benjamín Rivera Noriega Airport
639.35 miles (63.33 km) NWDorado Airport (DDP)Dorado, Puerto RicoView Dorado Airport on a map Set DDP as origin Airport Set DDP as destination Airport Get more information about Dorado Airport
750.86 miles (81.86 km) WMercedita Airport (PSE)Ponce, Puerto RicoView Mercedita Airport on a map Set PSE as origin Airport Set PSE as destination Airport Get more information about Mercedita Airport
856.02 miles (90.15 km) ENECyril E. King Airport (STT)Charlotte Amalie, Saint Thomas, United States Virgin IslandsView Cyril E. King Airport on a map Set STT as origin Airport Set STT as destination Airport Get more information about Cyril E. King Airport
958.11 miles (93.52 km) ENECharlotte Amalie Harbor Seaplane Base (SPB)Charlotte Amalie, Saint Thomas, U.S. Virgin IslandsView Charlotte Amalie Harbor Seaplane Base on a map Set SPB as origin Airport Set SPB as destination Airport Get more information about Charlotte Amalie Harbor Seaplane Base
1061.32 miles (98.69 km) WNWAntonio (Nery) Juarbe Pol Airport (ARE)Arecibo, Puerto RicoView Antonio (Nery) Juarbe Pol Airport on a map Set ARE as origin Airport Set ARE as destination Airport Get more information about Antonio (Nery) Juarbe Pol Airport
1172.20 miles (116.19 km) ESEHenry E. Rohlsen International Airport (STX)Christiansted, Saint Croix, United States Virgin IslandsView Henry E. Rohlsen International Airport on a map Set STX as origin Airport Set STX as destination Airport Get more information about Henry E. Rohlsen International Airport
1276.93 miles (123.80 km) ESEChristiansted Harbor Seaplane Base (SSB)Christiansted, Saint Croix, U.S. Virgin IslandsView Christiansted Harbor Seaplane Base on a map Set SSB as origin Airport Set SSB as destination Airport Get more information about Christiansted Harbor Seaplane Base
1385.20 miles (137.12 km) ENETerrance B. Lettsome International Airport (EIS)Beef Island (near Tortola), British Virgin IslandsView Terrance B. Lettsome International Airport on a map Set EIS as origin Airport Set EIS as destination Airport Get more information about Terrance B. Lettsome International Airport
1488.82 miles (142.94 km) WEugenio María de Hostos Airport (MAZ)Mayagüez, Puerto RicoView Eugenio María de Hostos Airport on a map Set MAZ as origin Airport Set MAZ as destination Airport Get more information about Eugenio María de Hostos Airport
1590.57 miles (145.76 km) WNWRafael Hernández Airport (BQN)Aguadilla, Puerto RicoView Rafael Hernández Airport on a map Set BQN as origin Airport Set BQN as destination Airport Get more information about Rafael Hernández Airport

Map of Furthest Airports from Humacao Airport:

List of Furthest Airports from Humacao Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,232.63 miles (19,686.46 km) SSWBarrow Island Airport (BWB)Barrow Island, Western Australia, AustraliaView Barrow Island Airport on a map Set BWB as origin Airport Set BWB as destination Airport Get more information about Barrow Island Airport
212,192.34 miles (19,621.62 km) SWKarratha Airport (KTA)Karratha / Dampier, Western Australia, AustraliaView Karratha Airport on a map Set KTA as origin Airport Set KTA as destination Airport Get more information about Karratha Airport
312,153.58 miles (19,559.24 km) SRAAF Learmonth (LEA)Exmouth, Western Australia, AustraliaView RAAF Learmonth on a map Set LEA as origin Airport Set LEA as destination Airport Get more information about RAAF Learmonth
412,109.20 miles (19,487.82 km) WSWPort Hedland International Airport (PHE)Port Hedland, Western Australia, AustraliaView Port Hedland International Airport on a map Set PHE as origin Airport Set PHE as destination Airport Get more information about Port Hedland International Airport
512,094.40 miles (19,464.01 km) SWCoolawanyah Station Airport (COY)Coolawanyah Station, Western Australia, AustraliaView Coolawanyah Station Airport on a map Set COY as origin Airport Set COY as destination Airport Get more information about Coolawanyah Station Airport
612,070.38 miles (19,425.34 km) SWSolomon Airport (SLJ)Karijini National Park, Western Australia, AustraliaView Solomon Airport on a map Set SLJ as origin Airport Set SLJ as destination Airport Get more information about Solomon Airport
712,039.59 miles (19,375.80 km) SWTom Price Airport (TPR)Tom Price, Western Australia, AustraliaView Tom Price Airport on a map Set TPR as origin Airport Set TPR as destination Airport Get more information about Tom Price Airport
812,020.31 miles (19,344.76 km) SSWParaburdoo Airport (PBO)Paraburdoo, Western Australia, AustraliaView Paraburdoo Airport on a map Set PBO as origin Airport Set PBO as destination Airport Get more information about Paraburdoo Airport
911,989.69 miles (19,295.48 km) SWCoondewanna Airport (CJF)Coondewanna, Western Australia, AustraliaView Coondewanna Airport on a map Set CJF as origin Airport Set CJF as destination Airport Get more information about Coondewanna Airport
1011,987.81 miles (19,292.47 km) SWBarimunya Airport (BYP)Barimunya, Western Australia, AustraliaView Barimunya Airport on a map Set BYP as origin Airport Set BYP as destination Airport Get more information about Barimunya Airport
1111,969.71 miles (19,263.33 km) SCarnarvon Airport (CVQ)Carnarvon, Western Australia, AustraliaView Carnarvon Airport on a map Set CVQ as origin Airport Set CVQ as destination Airport Get more information about Carnarvon Airport
1211,923.02 miles (19,188.20 km) SWNewman Airport (ZNE)Newman, Western Australia, AustraliaView Newman Airport on a map Set ZNE as origin Airport Set ZNE as destination Airport Get more information about Newman Airport
1311,909.24 miles (19,166.01 km) WBroome International Airport (BME)Broome, Western Australia, AustraliaView Broome International Airport on a map Set BME as origin Airport Set BME as destination Airport Get more information about Broome International Airport
1411,899.48 miles (19,150.31 km) SShark Bay Airport (MJK)Monkey Mia, Western Australia, AustraliaView Shark Bay Airport on a map Set MJK as origin Airport Set MJK as destination Airport Get more information about Shark Bay Airport
1511,812.03 miles (19,009.57 km) WDerby Airport (DRB)Derby, Western Australia, AustraliaView Derby Airport on a map Set DRB as origin Airport Set DRB as destination Airport Get more information about Derby Airport

Map of Nearest Airports to St. Mary's Airport:

List of Nearest Airports to St. Mary's Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112.52 miles (20.15 km) WMountain Village Airport (MOU)Mountain Village, Alaska, United StatesView Mountain Village Airport on a map Set MOU as destination Airport Set MOU as destination Airport Get more information about Mountain Village Airport
215.71 miles (25.28 km) ESEPilot Station Airport (PQS)Pilot Station, Alaska, United StatesView Pilot Station Airport on a map Set PQS as destination Airport Set PQS as destination Airport Get more information about Pilot Station Airport
343.61 miles (70.18 km) ESEMarshall Don Hunter Sr. Airport (MLL)Marshall, Alaska, United StatesView Marshall Don Hunter Sr. Airport on a map Set MLL as destination Airport Set MLL as destination Airport Get more information about Marshall Don Hunter Sr. Airport
458.95 miles (94.87 km) WNWSheldon Point Airport (SXP)Sheldon Point, Alaska, United StatesView Sheldon Point Airport on a map Set SXP as destination Airport Set SXP as destination Airport Get more information about Sheldon Point Airport
561.02 miles (98.20 km) NWAlakanuk Airport (AUK)Alakanuk, Alaska, United StatesView Alakanuk Airport on a map Set AUK as destination Airport Set AUK as destination Airport Get more information about Alakanuk Airport
662.90 miles (101.24 km) NWEmmonak Airport (EMK)Emmonak, Alaska, United StatesView Emmonak Airport on a map Set EMK as destination Airport Set EMK as destination Airport Get more information about Emmonak Airport
767.40 miles (108.48 km) NKotlik Airport (KOT)Kotlik, Alaska, United StatesView Kotlik Airport on a map Set KOT as destination Airport Set KOT as destination Airport Get more information about Kotlik Airport
867.43 miles (108.52 km) ESERussian Mission Airport (RSH)Russian Mission, Alaska, United StatesView Russian Mission Airport on a map Set RSH as destination Airport Set RSH as destination Airport Get more information about Russian Mission Airport
975.21 miles (121.04 km) WScammon Bay Airport (SCM)Scammon Bay, Alaska, United StatesView Scammon Bay Airport on a map Set SCM as destination Airport Set SCM as destination Airport Get more information about Scammon Bay Airport
1083.21 miles (133.91 km) WSWChevak Airport (VAK)Chevak, Alaska, United StatesView Chevak Airport on a map Set VAK as destination Airport Set VAK as destination Airport Get more information about Chevak Airport
1184.72 miles (136.35 km) SSENunapitchuk Airport (NUP)Nunapitchuk, Alaska, United StatesView Nunapitchuk Airport on a map Set NUP as destination Airport Set NUP as destination Airport Get more information about Nunapitchuk Airport
1285.97 miles (138.35 km) SSEKasigluk Airport (KUK)Kasigluk, Alaska, United StatesView Kasigluk Airport on a map Set KUK as destination Airport Set KUK as destination Airport Get more information about Kasigluk Airport
1388.49 miles (142.42 km) WCape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF)Cape Romanzof, Alaska, United StatesView Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    on a map Set CZF as destination Airport Set CZF as destination Airport Get more information about Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site   
1489.19 miles (143.53 km) SSWNewtok Airport (WWT)Newtok, Alaska, United StatesView Newtok Airport on a map Set WWT as destination Airport Set WWT as destination Airport Get more information about Newtok Airport
1589.22 miles (143.59 km) SSEAtmautluak Airport (ATT)Atmautluak, Alaska, United StatesView Atmautluak Airport on a map Set ATT as destination Airport Set ATT as destination Airport Get more information about Atmautluak Airport

Map of Furthest Airports from St. Mary's Airport:

List of Furthest Airports from St. Mary's Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,494.08 miles (16,888.54 km) SCape 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
210,482.44 miles (16,869.80 km) SGeorge 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
310,457.83 miles (16,830.21 km) SSWPort 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
410,416.76 miles (16,764.12 km) SSWPort 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
510,371.90 miles (16,691.92 km) SSWEast 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
610,261.64 miles (16,514.46 km) SSWMthatha 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
710,199.66 miles (16,414.71 km) SKleinsee Airport (KLZ)Kleinzee, South AfricaView Kleinsee Airport on a map Set KLZ as destination Airport Set KLZ as destination Airport Get more information about Kleinsee Airport
810,195.75 miles (16,408.43 km) SSWMargate 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
910,169.94 miles (16,366.89 km) SAggeneys Airport (AGZ)Aggeneys, South AfricaView Aggeneys Airport on a map Set AGZ as destination Airport Set AGZ as destination Airport Get more information about Aggeneys Airport
1010,169.94 miles (16,366.89 km) SWild Coast Sun Airport (MZF)Mzamba, South AfricaView Wild Coast Sun Airport on a map Set MZF as destination Airport Set MZF as destination Airport Get more information about Wild Coast Sun Airport
1110,157.43 miles (16,346.75 km) SSWMafeteng 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
1210,151.99 miles (16,338.00 km) SSWSemonkong 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
1310,149.37 miles (16,333.79 km) SSWLebakeng 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
1410,143.31 miles (16,324.03 km) SSWLesobeng 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
1510,133.50 miles (16,308.25 km) SETeniente Rodolfo Marsh Airport (TNM)Villa Las Estrellas, AntarcticaView Teniente Rodolfo Marsh Airport on a map Set TNM as destination Airport Set TNM as destination Airport Get more information about Teniente Rodolfo Marsh Airport