Nonstop flight route between Alton, Illinois, United States and Pasco, Washington, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(46°15'52"N by 119°7'8"W)
Distance from ALN to PSC:
1,554.08 miles (2,501.04 km)
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Jump to:
- About this route
- ALN Airport Information
- PSC Airport Information
- Facts about ALN
- Facts about PSC
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to PSC
- List of Nearest Airports to PSC
- Map of Furthest Airports from PSC
- List of Furthest Airports from PSC
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Tri-Cities Airport (PSC), Pasco, Washington, United States would travel a Great Circle distance of 1,554 miles (or 2,501 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 St. Louis Regional Airport and Tri-Cities Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | PSC / KPSC |
| Airport Name: | Tri-Cities Airport |
| Location: | Pasco, Washington, United States |
| GPS Coordinates: | 46°15'52"N by 119°7'8"W |
| Area Served: | Tri-Cities, Washington |
| Operator/Owner: | Port of Pasco, Washington |
| Airport Type: | Public |
| Elevation: | 407 feet (124 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from PSC |
| More Information: | PSC Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
Facts about Tri-Cities Airport (PSC):
- The Tri-Cities Airport was site of the first air mail contract flight between Elko, Nevada and Pasco, Washington made by Varney Airlines, in 1926.
- Because of Tri-Cities Airport's relatively low elevation of 407 feet, planes can take off or land at Tri-Cities 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 Tri-Cities Airport (PSC) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
- The airport's terminal at the south end of the field is the property of the Port of Pasco, at the north end of North 20th Avenue.
- The closest airport to Tri-Cities Airport (PSC) is Richland Airport (RLD), which is located only 9 miles (15 kilometers) WNW of PSC.
- Tri-Cities Airport (PSC) has 3 runways.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.28 miles (14.94 km) WNW | Richland Airport (RLD) | Richland, Washington, United States | |
| 2 | 30.89 miles (49.71 km) SSW | Hermiston Municipal Airport (HES) | Hermiston, Oregon, United States | |
| 3 | 41.41 miles (66.65 km) ESE | Walla Walla Regional AirportWalla Walla Army Air Base (ALW) | Walla Walla, Washington, United States | |
| 4 | 41.56 miles (66.88 km) SSE | Eastern Oregon Regional Airport (PDT) | Pendleton, Oregon, United States | |
| 5 | 65.90 miles (106.06 km) N | Grant County International Airport (MWH) | Moses Lake, Washington, United States | |
| 6 | 69.60 miles (112.01 km) WNW | Vagabond Army Heliport (closed to fixed-wing aircraft) (FCT) | Yakima, Washington, United States | |
| 7 | 71.05 miles (114.34 km) WNW | Yakima Air Terminal (YKM) | Yakima, Washington, United States | |
| 8 | 74.51 miles (119.91 km) NNW | Ephrata Municipal Airport (EPH) | Ephrata, Washington, United States | |
| 9 | 85.44 miles (137.51 km) NW | Bowers Field (ELN) | Ellensburg, Washington, United States | |
| 10 | 86.04 miles (138.47 km) SE | La Grande/Union County Airport (LGD) | La Grande, Oregon, United States | |
| 11 | 93.65 miles (150.72 km) NNW | Pangborn Memorial Airport (EAT) | Wenatchee, Washington, United States | |
| 12 | 100.67 miles (162.01 km) E | Lewiston-Nez Perce County Airport (LWS) | Lewiston, Idaho, United States | |
| 13 | 101.14 miles (162.77 km) ENE | Pullman-Moscow Regional Airport (PUW) | Pullman, Washington (near Moscow, Idaho), United States | |
| 14 | 108.06 miles (173.90 km) WSW | Columbia Gorge Regional Airport (DLS) | The Dalles, Oregon, United States | |
| 15 | 116.06 miles (186.78 km) NE | Fairchild Air Force Base (SKA) | Spokane, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,780.53 miles (17,349.53 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,699.31 miles (17,218.83 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,686.22 miles (17,197.76 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,657.62 miles (17,151.74 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,642.65 miles (17,127.65 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,599.93 miles (17,058.89 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,566.96 miles (17,005.82 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,554.87 miles (16,986.37 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,497.88 miles (16,894.65 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,492.15 miles (16,885.44 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 11 | 10,483.46 miles (16,871.45 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 12 | 10,478.70 miles (16,863.79 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 13 | 10,474.40 miles (16,856.87 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 14 | 10,467.09 miles (16,845.11 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,466.42 miles (16,844.02 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |