Nonstop flight route between Williamsport, Pennsylvania, United States and Alton, Illinois, United States:
Departure Airport:
(41°14'30"N by 76°55'18"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from IPT to ALN:
711.99 miles (1,145.83 km)
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Jump to:
- About this route
- IPT Airport Information
- ALN Airport Information
- Facts about IPT
- Facts about ALN
- 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 ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Williamsport Regional Airport (IPT), Williamsport, Pennsylvania, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 712 miles (or 1,146 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 Williamsport Regional Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
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: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Facts about Williamsport Regional Airport (IPT):
- Williamsport Regional Airport (IPT) has 2 runways.
- TWA and United dropped IPT in 1965-66, leaving Allegheny Airlines.
- 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.
- 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.
- Federal Aviation Administration records say the airport had 23,901 passenger boardings in calendar year 2008, 19,834 in 2009 and 22,519 in 2010.
- 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. Louis Regional Airport (ALN):
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- In the spring of 2004 the airport was at the center of a scandal.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis 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.
| 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 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |