Nonstop flight route between Alton, Illinois, United States and Ontario, Oregon, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(44°1'9"N by 117°0'47"W)
Distance from ALN to ONO:
1,433.67 miles (2,307.26 km)
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Jump to:
- About this route
- ALN Airport Information
- ONO Airport Information
- Facts about ALN
- Facts about ONO
- 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 ONO
- List of Nearest Airports to ONO
- Map of Furthest Airports from ONO
- List of Furthest Airports from ONO
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Ontario Municipal Airport (ONO), Ontario, Oregon, United States would travel a Great Circle distance of 1,434 miles (or 2,307 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 Ontario Municipal 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: | ONO / KONO |
| Airport Name: | Ontario Municipal Airport |
| Location: | Ontario, Oregon, United States |
| GPS Coordinates: | 44°1'9"N by 117°0'47"W |
| Area Served: | Ontario, Oregon |
| Operator/Owner: | City of Ontario |
| Airport Type: | Public |
| Elevation: | 2193 feet (668 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ONO |
| More Information: | ONO Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- St. Louis Regional Airport (ALN) has 2 runways.
Facts about Ontario Municipal Airport (ONO):
- The furthest airport from Ontario Municipal Airport (ONO) is Tôlanaro Airport (FTU), which is located 10,845 miles (17,454 kilometers) away in Tôlanaro, Madagascar.
- Ontario Municipal Airport is three miles west of Ontario, in Malheur County, Oregon.
- The closest airport to Ontario Municipal Airport (ONO) is Boise Airport (BOI), which is located 50 miles (81 kilometers) SE of ONO.
- Ontario Municipal Airport (ONO) currently has only 1 runway.
| 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 | 50.42 miles (81.14 km) SE | Boise Airport (BOI) | Boise, Idaho, United States | |
| 2 | 68.81 miles (110.75 km) NW | Baker City Municipal Airport (BKE) | Baker City, Oregon, United States | |
| 3 | 75.01 miles (120.72 km) NE | McCall Municipal Airport (MYL) | McCall, Idaho, United States | |
| 4 | 88.37 miles (142.22 km) SE | Mountain Home Air Force Base (MUO) | Mountain Home, Idaho, United States | |
| 5 | 100.36 miles (161.52 km) WNW | Grant County Regional Airport (GCRA) (JDA) | John Day, Oregon, United States | |
| 6 | 100.48 miles (161.71 km) NNW | La Grande/Union County Airport (LGD) | La Grande, Oregon, United States | |
| 7 | 101.26 miles (162.96 km) WSW | Burns Municipal Airport (BNO) | Burns, Oregon, United States | |
| 8 | 108.84 miles (175.16 km) SSW | Rome State Airport (REO) | Rome, Oregon, United States | |
| 9 | 140.20 miles (225.63 km) ESE | Friedman Memorial Airport (SUN) | Hailey, Idaho, United States | |
| 10 | 142.60 miles (229.50 km) ENE | Challis Airport (CHL) | Challis, Idaho, United States | |
| 11 | 146.35 miles (235.53 km) NW | Eastern Oregon Regional Airport (PDT) | Pendleton, Oregon, United States | |
| 12 | 156.32 miles (251.57 km) NNW | Walla Walla Regional AirportWalla Walla Army Air Base (ALW) | Walla Walla, Washington, United States | |
| 13 | 162.71 miles (261.86 km) N | Lewiston-Nez Perce County Airport (LWS) | Lewiston, Idaho, United States | |
| 14 | 165.63 miles (266.56 km) SE | Magic Valley Regional Airport (TWF) | Twin Falls, Idaho, United States | |
| 15 | 166.40 miles (267.80 km) NW | Hermiston Municipal Airport (HES) | Hermiston, Oregon, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,845.45 miles (17,454.02 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,809.81 miles (17,396.66 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,782.18 miles (17,352.19 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 4 | 10,778.62 miles (17,346.46 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,760.32 miles (17,317.02 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 6 | 10,752.14 miles (17,303.85 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,651.39 miles (17,141.71 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,631.69 miles (17,110.00 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,551.48 miles (16,980.91 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,544.91 miles (16,970.35 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,534.01 miles (16,952.81 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,480.26 miles (16,866.30 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,476.44 miles (16,860.15 km) SSE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,467.37 miles (16,845.56 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,447.56 miles (16,813.67 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |