About this route:

A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 863 miles (or 1,389 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 Port Alexander Seaplane Base and Southwest Washington Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

IATA / ICAO Codes: PTD / PAAP
Airport Names:
  1. Port Alexander Seaplane Base
  2. AHP
Location: Port Alexander, Alaska, United States
GPS Coordinates: 56°14'48"N by 134°38'53"W
Area Served: Port Alexander, Alaska
Operator/Owner: Alaska DOT&PF - Southeast Region
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from PTD
More Information: PTD Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: KLS / KKLS
Airport Name: Southwest Washington Regional Airport
Location: Kelso, Washington, United States
GPS Coordinates: 46°7'5"N by 122°53'53"W
Area Served: Longview-Kelso Metropolitan Area
Operator/Owner: City of Kelso
Airport Type: Public
Elevation: 20 feet (6 meters)
# of Runways: 1
View all routes: Routes from KLS
More Information: KLS Maps & Info

Facts about Port Alexander Seaplane Base (PTD):

  • Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander 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.
  • Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
  • Port Alexander Seaplane Base (PTD) currently has only 1 runway.
  • The closest airport to Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
  • Port Alexander Seaplane Base is a state owned, public use seaplane base located in Port Alexander, a city at the southeastern corner of Baranof Island in the Petersburg Census Area of the U.S.
  • The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
  • In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".

Facts about Southwest Washington Regional Airport (KLS):

  • The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
  • Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington 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.
  • Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
  • Southwest Washington Regional Airport (KLS) currently has only 1 runway.
  • The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.

Map of Nearest Airports to Port Alexander Seaplane Base:

List of Nearest Airports to Port Alexander Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
139.98 miles (64.34 km) EPoint Baker Seaplane Base (KPB)Point Baker, Alaska, United StatesView Point Baker Seaplane Base on a map Set KPB as origin Airport Set KPB as destination Airport Get more information about Point Baker Seaplane Base
240.21 miles (64.71 km) EPort Protection Seaplane Base (PPV)Port Protection, Alaska, United StatesView Port Protection Seaplane Base on a map Set PPV as origin Airport Set PPV as destination Airport Get more information about Port Protection Seaplane Base
355.24 miles (88.91 km) ESETokeen Seaplane Base (TKI)Tokeen, Alaska, United StatesView Tokeen Seaplane Base on a map Set TKI as origin Airport Set TKI as destination Airport Get more information about Tokeen Seaplane Base
456.78 miles (91.38 km) NNEKake Airport (KAE)Kake, Alaska, United StatesView Kake Airport on a map Set KAE as origin Airport Set KAE as destination Airport Get more information about Kake Airport
559.38 miles (95.57 km) ENorth Whale Seaplane Base (WWP)North Whale Pass, Alaska, United StatesView North Whale Seaplane Base on a map Set WWP as origin Airport Set WWP as destination Airport Get more information about North Whale Seaplane Base
661.29 miles (98.64 km) ESENaukati Bay Seaplane Base (WNC)Tuxekan Island, Alaska, United StatesView Naukati Bay Seaplane Base on a map Set WNC as origin Airport Set WNC as destination Airport Get more information about Naukati Bay Seaplane Base
761.58 miles (99.10 km) NNWSitka Rocky Gutierrez Airport (SIT)Sitka, Alaska, United StatesView Sitka Rocky Gutierrez Airport on a map Set SIT as origin Airport Set SIT as destination Airport Get more information about Sitka Rocky Gutierrez Airport
871.67 miles (115.35 km) ESECoffman Cove Seaplane Base (KCC)Coffman Cove, Alaska, United StatesView Coffman Cove Seaplane Base on a map Set KCC as origin Airport Set KCC as destination Airport Get more information about Coffman Cove Seaplane Base
975.33 miles (121.23 km) ENEPetersburg James A. Johnson Airport (PSG)Petersburg, Alaska, United StatesView Petersburg James A. Johnson Airport on a map Set PSG as origin Airport Set PSG as destination Airport Get more information about Petersburg James A. Johnson Airport
1076.38 miles (122.92 km) SEKlawock Airport (KLW)Klawock, Alaska, United StatesView Klawock Airport on a map Set KLW as origin Airport Set KLW as destination Airport Get more information about Klawock Airport
1178.74 miles (126.71 km) SECraig Seaplane Base (CGA)Craig, Alaska, United StatesView Craig Seaplane Base on a map Set CGA as origin Airport Set CGA as destination Airport Get more information about Craig Seaplane Base
1285.40 miles (137.44 km) SEWaterfall Seaplane Base (KWF)Waterfall, Alaska, United StatesView Waterfall Seaplane Base on a map Set KWF as origin Airport Set KWF as destination Airport Get more information about Waterfall Seaplane Base
1386.86 miles (139.79 km) NAngoon Seaplane Base (AGN)Angoon, Alaska, United StatesView Angoon Seaplane Base on a map Set AGN as origin Airport Set AGN as destination Airport Get more information about Angoon Seaplane Base
1488.33 miles (142.16 km) NChatham Seaplane Base (CYM)Chatham, Alaska, United StatesView Chatham Seaplane Base on a map Set CYM as origin Airport Set CYM as destination Airport Get more information about Chatham Seaplane Base
1588.72 miles (142.78 km) ENEWrangell Airport (WRG)Wrangell, Alaska, United StatesView Wrangell Airport on a map Set WRG as origin Airport Set WRG as destination Airport Get more information about Wrangell Airport

Map of Furthest Airports from Port Alexander Seaplane Base:

List of Furthest Airports from Port Alexander Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,639.80 miles (17,123.05 km) SEPort 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
210,636.65 miles (17,117.99 km) SEPort 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
310,628.00 miles (17,104.07 km) SEEast 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
410,554.56 miles (16,985.87 km) SEGeorge 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
510,550.30 miles (16,979.02 km) SSEMthatha Airport (UTT)Mthatha, South AfricaView Mthatha Airport on a map Set UTT as origin Airport Set UTT as destination Airport Get more information about Mthatha Airport
610,537.99 miles (16,959.21 km) SSEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as origin Airport Set MGH as destination Airport Get more information about Margate Airport
710,469.73 miles (16,849.35 km) SSEKing Shaka International (DUR)Durban, KwaZulu-Natal, South AfricaView King Shaka International on a map Set DUR as origin Airport Set DUR as destination Airport Get more information about King Shaka International
810,459.21 miles (16,832.43 km) SSEPietermaritzburg Airport (PZB)Pietermaritzburg, South AfricaView Pietermaritzburg Airport on a map Set PZB as origin Airport Set PZB as destination Airport Get more information about Pietermaritzburg Airport
910,444.62 miles (16,808.94 km) SECape 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
1010,442.29 miles (16,805.19 km) SSELebakeng Airport (LEF)Lebakeng, LesothoView Lebakeng Airport on a map Set LEF as origin Airport Set LEF as destination Airport Get more information about Lebakeng Airport
1110,427.82 miles (16,781.91 km) SSERichards Bay Airport (RCB)Richards Bay, KwaZulu-Natal, South AfricaView Richards Bay Airport on a map Set RCB as origin Airport Set RCB as destination Airport Get more information about Richards Bay Airport
1210,427.52 miles (16,781.43 km) SSELesobeng Airport (LES)Lesobeng, LesothoView Lesobeng Airport on a map Set LES as origin Airport Set LES as destination Airport Get more information about Lesobeng Airport
1310,426.91 miles (16,780.44 km) SSESemonkong Airport (SOK)Semonkong, LesothoView Semonkong Airport on a map Set SOK as origin Airport Set SOK as destination Airport Get more information about Semonkong Airport
1410,410.61 miles (16,754.20 km) SSEMokhotlong Airport (MKH)Mokhotlong, LesothoView Mokhotlong Airport on a map Set MKH as origin Airport Set MKH as destination Airport Get more information about Mokhotlong Airport
1510,407.54 miles (16,749.28 km) SSEMafeteng Airport (MFC)Mafeteng, LesothoView Mafeteng Airport on a map Set MFC as origin Airport Set MFC as destination Airport Get more information about Mafeteng Airport

Map of Nearest Airports to Southwest Washington Regional Airport:

List of Nearest Airports to Southwest Washington Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
125.20 miles (40.56 km) NSouth Lewis County Airport (TDO)Toledo, Washington, United StatesView South Lewis County Airport on a map Set TDO as destination Airport Set TDO as destination Airport Get more information about South Lewis County Airport
239.34 miles (63.31 km) SSEPortland International Airport (PDX)Portland, Oregon, United StatesView Portland International Airport on a map Set PDX as destination Airport Set PDX as destination Airport Get more information about Portland International Airport
339.99 miles (64.36 km) SPortland-Hillsboro Airport (HIO)Hillsboro / Portland, Oregon, United StatesView Portland-Hillsboro Airport on a map Set HIO as destination Airport Set HIO as destination Airport Get more information about Portland-Hillsboro Airport
446.01 miles (74.04 km) SSEPortland-Troutdale Airport (TTD)Portland, Oregon, United StatesView Portland-Troutdale Airport on a map Set TTD as destination Airport Set TTD as destination Airport Get more information about Portland-Troutdale Airport
547.01 miles (75.66 km) WAstoria Regional Airport (AST)Astoria, Oregon, United StatesView Astoria Regional Airport on a map Set AST as destination Airport Set AST as destination Airport Get more information about Astoria Regional Airport
657.72 miles (92.89 km) ESECascade Locks State Airport (CZK)Cascade Locks, Oregon, United StatesView Cascade Locks State Airport on a map Set CZK as destination Airport Set CZK as destination Airport Get more information about Cascade Locks State Airport
758.83 miles (94.67 km) NOlympia Regional Airport (OLM)Olympia, Washington, United StatesView Olympia Regional Airport on a map Set OLM as destination Airport Set OLM as destination Airport Get more information about Olympia Regional Airport
868.10 miles (109.59 km) NNEGray Army Airfield (GRF)Tacoma, Washington, United StatesView Gray Army Airfield on a map Set GRF as destination Airport Set GRF as destination Airport Get more information about Gray Army Airfield
973.24 miles (117.88 km) NNEMcChord Field/McChord AFB (TCM)Tacoma, Washington, United StatesView McChord Field/McChord AFB on a map Set TCM as destination Airport Set TCM as destination Airport Get more information about McChord Field/McChord AFB
1076.87 miles (123.70 km) NWBowerman Airport (HQM)Hoquiam, Washington, United StatesView Bowerman Airport on a map Set HQM as destination Airport Set HQM as destination Airport Get more information about Bowerman Airport
1177.98 miles (125.49 km) NSanderson Field (SHN)Shelton, Washington, United StatesView Sanderson Field on a map Set SHN as destination Airport Set SHN as destination Airport Get more information about Sanderson Field
1280.89 miles (130.19 km) NTacoma Narrows Airport (TIW)Tacoma, Washington, United StatesView Tacoma Narrows Airport on a map Set TIW as destination Airport Set TIW as destination Airport Get more information about Tacoma Narrows Airport
1381.64 miles (131.39 km) SWPacific City State Airport (PFC)Pacific City, Oregon, United StatesView Pacific City State Airport on a map Set PFC as destination Airport Set PFC as destination Airport Get more information about Pacific City State Airport
1483.66 miles (134.64 km) SMcNary Field (SLE)Salem, Oregon, United StatesView McNary Field on a map Set SLE as destination Airport Set SLE as destination Airport Get more information about McNary Field
1590.15 miles (145.08 km) ESEColumbia Gorge Regional Airport (DLS)The Dalles, Oregon, United StatesView Columbia Gorge Regional Airport on a map Set DLS as destination Airport Set DLS as destination Airport Get more information about Columbia Gorge Regional Airport

Map of Furthest Airports from Southwest Washington Regional Airport:

List of Furthest Airports from Southwest Washington Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,875.78 miles (17,502.83 km) SSETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as destination Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
210,805.79 miles (17,390.18 km) SSEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as destination Airport Set AMP as destination Airport Get more information about Ampanihy Airport
310,720.93 miles (17,253.62 km) SPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as destination Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
410,691.41 miles (17,206.11 km) SRoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as destination Airport Set RUN as destination Airport Get more information about Roland Garros Airport
510,661.62 miles (17,158.17 km) SSir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as destination Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
610,660.63 miles (17,156.58 km) ESEMargate 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
710,649.46 miles (17,138.61 km) ESEEast 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
810,645.98 miles (17,133.01 km) SSEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as destination Airport Set MNJ as destination Airport Get more information about Mananjary Airport
910,641.31 miles (17,125.48 km) SSEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as destination Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
1010,631.92 miles (17,110.37 km) ESEKing 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
1110,629.07 miles (17,105.79 km) ESEPort 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
1210,627.57 miles (17,103.37 km) ESERichards 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
1310,620.73 miles (17,092.37 km) ESEMthatha 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
1410,605.30 miles (17,067.54 km) SSEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as destination Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1510,603.83 miles (17,065.16 km) ESEPietermaritzburg 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