Nonstop flight route between Twentynine Palms, California, United States and Alton, Illinois, United States:
Departure Airport:
(34°7'54"N by 115°56'44"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from TNP to ALN:
1,470.05 miles (2,365.81 km)
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- About this route
- TNP Airport Information
- ALN Airport Information
- Facts about TNP
- Facts about ALN
- Map of Nearest Airports to TNP
- List of Nearest Airports to TNP
- Map of Furthest Airports from TNP
- List of Furthest Airports from TNP
- 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 Twentynine Palms Airport (TNP), Twentynine Palms, California, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,470 miles (or 2,366 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 Twentynine Palms 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: | TNP / KTNP |
| Airport Name: | Twentynine Palms Airport |
| Location: | Twentynine Palms, California, United States |
| GPS Coordinates: | 34°7'54"N by 115°56'44"W |
| Area Served: | Twentynine Palms, California |
| Operator/Owner: | County of San Bernardino |
| Airport Type: | Public |
| Elevation: | 1888 feet (575 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from TNP |
| More Information: | TNP 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 Twentynine Palms Airport (TNP):
- The furthest airport from Twentynine Palms Airport (TNP) is Sir Gaëtan Duval Airport (RRG), which is located 11,443 miles (18,415 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Twentynine Palms Airport (TNP) is Bermuda Dunes Airport (UDD), which is located 33 miles (52 kilometers) SW of TNP.
- Twentynine Palms Airport covers an area of 480 acres at an elevation of 1,888 feet above mean sea level.
- Twentynine Palms Airport (TNP) has 2 runways.
Facts about St. Louis Regional Airport (ALN):
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- 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.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- St. Louis Regional Airport (ALN) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 32.51 miles (52.32 km) SW | Bermuda Dunes Airport (UDD) | Palm Springs, California, United States |     |
| 2 | 36.99 miles (59.52 km) SSW | Jacqueline Cochran Regional Airport (TRM) | Palm Springs, California, United States | |
| 3 | 38.31 miles (61.66 km) WSW | Palm Springs International AirportPalm Springs Army Airfield (PSP) | Palm Springs, California, United States | |
| 4 | 53.79 miles (86.56 km) WSW | Banning Municipal Airport (BNG) | Banning, California, United States | |
| 5 | 61.53 miles (99.03 km) S | Salton Sea Airport (SAS) | Salton City, California, United States | |
| 6 | 64.05 miles (103.07 km) SSW | Borrego Valley Airport (BXS) | Borrego Springs, California, United States | |
| 7 | 67.56 miles (108.73 km) WSW | Hemet-Ryan AirportRyan Field (HMT) | Hemet, California, United States | |
| 8 | 69.14 miles (111.28 km) NW | Barstow-Daggett Airport (DAG) | Daggett, California, United States | |
| 9 | 73.79 miles (118.75 km) W | Norton Air Force Base (SBD) | San Bernardino, California, United States | |
| 10 | 73.79 miles (118.75 km) W | San Bernardino International Airport (SBT) | San Bernardino, California, United States | |
| 11 | 77.11 miles (124.09 km) WNW | Apple Valley Airport (APV) | Apple Valley, California, United States | |
| 12 | 77.21 miles (124.26 km) WSW | March Air Reserve Base (RIV) | Riverside, California, United States | |
| 13 | 79.21 miles (127.48 km) ESE | Blythe Airport (BLH) | Blythe, California, United States | |
| 14 | 82.45 miles (132.70 km) SSE | Brawley Municipal Airport (BWC) | Brawley, California, United States | |
| 15 | 84.39 miles (135.81 km) W | Flabob Airport (RIR) | Riverside/Rubidoux, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,442.73 miles (18,415.24 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 11,413.11 miles (18,367.57 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 11,407.42 miles (18,358.41 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 11,383.96 miles (18,320.66 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 11,235.16 miles (18,081.18 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 11,128.28 miles (17,909.19 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 11,107.21 miles (17,875.27 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 11,083.46 miles (17,837.06 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,007.60 miles (17,714.98 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,966.68 miles (17,649.12 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 11 | 10,966.38 miles (17,648.63 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 12 | 10,948.99 miles (17,620.65 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,927.20 miles (17,585.59 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,917.19 miles (17,569.47 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,915.78 miles (17,567.20 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 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 | |