Nonstop flight route between Williamsport, Pennsylvania, United States and St. Paul Island, Alaska, United States:
Departure Airport:
(41°14'30"N by 76°55'18"W)
Arrival Airport:
(57°10'1"N by 170°13'14"W)
Distance from IPT to SNP:
4,004.85 miles (6,445.17 km)
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Jump to:
- About this route
- IPT Airport Information
- SNP Airport Information
- Facts about IPT
- Facts about SNP
- Map of Nearest Airports to IPT
- List of Nearest Airports to IPT
- Map of Furthest Airports from IPT
- List of Furthest Airports from IPT
- Map of Nearest Airports to SNP
- List of Nearest Airports to SNP
- Map of Furthest Airports from SNP
- List of Furthest Airports from SNP
About this route:
A direct, nonstop flight between Williamsport Regional Airport (IPT), Williamsport, Pennsylvania, United States and St. Paul Island Airport (SNP), St. Paul Island, Alaska, United States would travel a Great Circle distance of 4,005 miles (or 6,445 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 Williamsport Regional Airport and St. Paul Island 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 Williamsport Regional Airport and St. Paul Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | IPT / KIPT |
| Airport Name: | Williamsport Regional Airport |
| Location: | Williamsport, Pennsylvania, United States |
| GPS Coordinates: | 41°14'30"N by 76°55'18"W |
| Area Served: | Williamsport, Pennsylvania |
| Operator/Owner: | Williamsport Municipal Airport Authority |
| Airport Type: | Public |
| Elevation: | 528 feet (161 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from IPT |
| More Information: | IPT Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SNP / PASN |
| Airport Name: | St. Paul Island Airport |
| Location: | St. Paul Island, Alaska, United States |
| GPS Coordinates: | 57°10'1"N by 170°13'14"W |
| Area Served: | St. Paul Island, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 63 feet (19 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SNP |
| More Information: | SNP Maps & Info |
Facts about Williamsport Regional Airport (IPT):
- The Williamsport Municipal Airport Authority announced the terminal will be replaced with a building twice the size.
- Williamsport Regional Airport (IPT) has 2 runways.
- The airport covers 535 acres at an elevation of 528 feet above sea level.
- The Williamsport Regional Association of Pilots holds a Fly-In every June.
- Because of Williamsport Regional Airport's relatively low elevation of 528 feet, planes can take off or land at Williamsport 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.
- The closest airport to Williamsport Regional Airport (IPT) is William T. Piper Memorial Airport (LHV), which is located 27 miles (44 kilometers) WSW of IPT.
- The furthest airport from Williamsport Regional Airport (IPT) is Margaret River Airport (MGV), which is located 11,608 miles (18,682 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Paul Island Airport (SNP):
- Because of St. Paul Island Airport's relatively low elevation of 63 feet, planes can take off or land at St. Paul Island 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 furthest airport from St. Paul Island Airport (SNP) is Cape Town International Airport (CPT), which is located 10,781 miles (17,351 kilometers) away in Cape Town, South Africa.
- The closest airport to St. Paul Island Airport (SNP) is St. George Airport (STG), which is located 46 miles (74 kilometers) SSE of SNP.
- St. Paul Island Airport (SNP) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 27.03 miles (43.51 km) WSW | William T. Piper Memorial Airport (LHV) | Lock Haven, Pennsylvania, United States |     |
| 2 | 29.21 miles (47.01 km) S | Penn Valley Airport (SEG) | Selinsgrove, Pennsylvania, United States | |
| 3 | 51.35 miles (82.65 km) ESE | Hazleton Municipal Airport (HZL) | Hazleton, Pennsylvania, United States | |
| 4 | 53.61 miles (86.27 km) SW | Mifflin County Airport (RED) | Reedsville, Pennsylvania, United States | |
| 5 | 55.39 miles (89.15 km) WSW | University Park Airport (SCE) | State College, Pennsylvania, United States | |
| 6 | 55.67 miles (89.59 km) E | Wilkes-Barre Wyoming Valley Airport (WBW) | Wilkes-Barre, Pennsylvania, United States | |
| 7 | 58.72 miles (94.50 km) SSE | Muir Army Airfield (MUI) | Fort Indiantown Gap, Pennsylvania, United States | |
| 8 | 62.57 miles (100.69 km) E | Wilkes-Barre/Scranton International Airport (AVP) | Avoca, Pennsylvania, United States | |
| 9 | 63.47 miles (102.14 km) N | Elmira/Corning Regional Airport (ELM) | Elmira/Big Flats, New York, United States | |
| 10 | 65.57 miles (105.53 km) WSW | Mid-State Regional Airport (PSB) | Philipsburg, Pennsylvania, United States | |
| 11 | 70.88 miles (114.07 km) S | Capital City Airport (HAR) | Harrisburg, Pennsylvania, United States | |
| 12 | 72.92 miles (117.36 km) S | Harrisburg International Airport (MDT) | Harrisburg, Pennsylvania, United States | |
| 13 | 77.83 miles (125.25 km) SE | Reading Regional Airport (RDG) | Reading, Pennsylvania, United States | |
| 14 | 80.48 miles (129.52 km) E | Pocono Mountains Municipal Airport (MPO) | Mount Pocono, Pennsylvania, United States | |
| 15 | 81.45 miles (131.08 km) NW | Wellsville Municipal Airport (ELZ) | Wellsville, New York, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,608.41 miles (18,681.87 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,584.39 miles (18,643.22 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,577.19 miles (18,631.64 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,558.29 miles (18,601.22 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,526.96 miles (18,550.80 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,498.07 miles (18,504.30 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,488.65 miles (18,489.14 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,484.60 miles (18,482.63 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 11,477.37 miles (18,470.99 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,427.90 miles (18,391.37 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,356.18 miles (18,275.96 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,332.19 miles (18,237.35 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,309.89 miles (18,201.46 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 11,306.66 miles (18,196.26 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 15 | 11,287.16 miles (18,164.88 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 45.87 miles (73.82 km) SSE | St. George Airport (STG) | St. George, Alaska, United States | |
| 2 | 262.64 miles (422.68 km) NNE | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| 3 | 267.59 miles (430.64 km) SE | Unalaska Airport (DUT) | Unalaska, Alaska, United States | |
| 4 | 271.76 miles (437.36 km) SE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 5 | 293.58 miles (472.48 km) NE | Kipnuk Airport (KPN) | Kipnuk, Alaska, United States | |
| 6 | 294.29 miles (473.61 km) NE | Tununak Airport (TNK) | Tununak, Alaska, United States | |
| 7 | 296.35 miles (476.92 km) NE | Chefornak Airport (CYF) | Chefornak, Alaska, United States | |
| 8 | 296.47 miles (477.13 km) NE | Toksook Bay Airport (OOK) | Toksook Bay, Alaska, United States | |
| 9 | 296.95 miles (477.89 km) S | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 10 | 301.62 miles (485.42 km) NE | Nightmute Airport (NME) | Nightmute, Alaska, United States | |
| 11 | 307.85 miles (495.43 km) ESE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 12 | 316.18 miles (508.85 km) ENE | Cape Newenham LRRS Airport (EHM) | Cape Newenham, Alaska, United States | |
| 13 | 318.29 miles (512.23 km) ESE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 14 | 327.13 miles (526.46 km) NE | Kongiganak Airport (KKH) | Kongiganak, Alaska, United States | |
| 15 | 327.21 miles (526.59 km) NE | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,781.39 miles (17,350.92 km) SSW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,730.87 miles (17,269.62 km) SSW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,671.41 miles (17,173.93 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,617.95 miles (17,087.89 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,564.73 miles (17,002.25 km) SW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,505.23 miles (16,906.48 km) SSW | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 7 | 10,461.01 miles (16,835.32 km) SSW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 8 | 10,461.01 miles (16,835.32 km) SSW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 9 | 10,450.76 miles (16,818.82 km) SW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 10 | 10,433.98 miles (16,791.82 km) SSW | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 11 | 10,376.92 miles (16,699.99 km) SSW | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 12 | 10,372.12 miles (16,692.27 km) SSW | Upington Airport (UTN) | Upington, South Africa | |
| 13 | 10,369.90 miles (16,688.70 km) SW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 14 | 10,366.96 miles (16,683.96 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,353.14 miles (16,661.72 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |