Nonstop flight route between Alton, Illinois, United States and Saipan Island, Northern Mariana Islands:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(15°7'8"N by 145°43'45"E)
Distance from ALN to SPN:
7,254.99 miles (11,675.75 km)
Share this route:
Jump to:
- About this route
- ALN Airport Information
- SPN Airport Information
- Facts about ALN
- Facts about SPN
- 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 SPN
- List of Nearest Airports to SPN
- Map of Furthest Airports from SPN
- List of Furthest Airports from SPN
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Saipan International Airport (SPN), Saipan Island, Northern Mariana Islands would travel a Great Circle distance of 7,255 miles (or 11,676 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 St. Louis Regional Airport and Saipan International 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 St. Louis Regional Airport and Saipan International Airport. You'll see that it will travel the same route of the red line on this map!
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: | SPN / PGSN |
| Airport Names: |
|
| Location: | Saipan Island, Northern Mariana Islands |
| GPS Coordinates: | 15°7'8"N by 145°43'45"E |
| Operator/Owner: | Commonwealth Ports Authority |
| Airport Type: | Public |
| Elevation: | 215 feet (66 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SPN |
| More Information: | SPN Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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 Saipan International Airport (SPN):
- Saipan International Airport commenced operation on 25 July 1976 taking over from the nearby Kobler Field.Continental Micronesia initially had its main hub at Kobler Field and then Saipan Airport.
- Because of Saipan International Airport's relatively low elevation of 215 feet, planes can take off or land at Saipan International 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 Saipan International Airport (SPN) is Tinian International Airport (TIQ), which is located only 11 miles (18 kilometers) SW of SPN.
- The furthest airport from Saipan International Airport (SPN) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Saipan International Airport (meaning Saipan International Airport is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,125 miles (19,514 kilometers) away in Salvador, Bahia, Brazil.
- Saipan International Airport (SPN) currently has only 1 runway.
- The IJNAS assigned two squadrons of Mitsubishi A6M5a-52 Zeros to the airfield in mid-June 1944.
- In addition to being known as "Saipan International Airport", other names for SPN include "Francisco C. Ada Airport" and "GSN".
| 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 | 11.06 miles (17.80 km) SW | Tinian International Airport (TIQ) | Tinian Island, Northern Mariana Islands | |
| 2 | 72.92 miles (117.36 km) SSW | Rota International Airport (ROP) | Rota Island, Northern Mariana Islands | |
| 3 | 119.13 miles (191.72 km) SSW | Andersen Air Force Base (UAM) | Agana, Guam | |
| 4 | 129.06 miles (207.70 km) SSW | Guam International Airport (GUM) | Hagåtña, Guam | |
| 5 | 533.30 miles (858.26 km) SW | Falalop Airfield (ULI) | Falalop Island, Yap, Federated States of Micronesia | |
| 6 | 645.75 miles (1,039.22 km) SW | Yap International Airport (YAP) | Yap, Federated States of Micronesia | |
| 7 | 671.70 miles (1,081.00 km) SE | Chuuk International Airport (TKK) | Weno, Federated States of Micronesia | |
| 8 | 726.36 miles (1,168.96 km) NNW | Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (IWO) | Iwo Jima, Bonin Islands, Japan | |
| 9 | 829.80 miles (1,335.42 km) NE | Minamitorishima Air Field (MUS) | Minami-Tori-shima, Japan | |
| 10 | 927.56 miles (1,492.75 km) SW | Roman Tmetuchl International Airport (ROR) | Koror, Palau | |
| 11 | 1,015.16 miles (1,633.73 km) ESE | Pohnpei International Airport (PNI) | Kolonia, Federated States of Micronesia | |
| 12 | 1,146.10 miles (1,844.46 km) E | Enewetak Auxiliary Airfield (ENT) | Enewetak, Marshall Islands | |
| 13 | 1,192.41 miles (1,919.00 km) NW | Minami-Daito Airport (MMD) | Minami Daito, Okinawa, Japan | |
| 14 | 1,192.72 miles (1,919.50 km) S | Momote Airport (MAS) | Los Negros Island, Admiralty Islands, Papua New Guinea | |
| 15 | 1,193.19 miles (1,920.24 km) NW | Kitadaito Airport (KTD) | Kitadaito, Okinawa Prefecture, Japan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,125.20 miles (19,513.57 km) ESE | Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA) | Salvador, Bahia, Brazil | |
| 2 | 12,118.20 miles (19,502.30 km) E | Ilhéus/Bahia-Jorge Amado Airport (IOS) | Ilhéus, Bahia, Brazil | |
| 3 | 12,104.44 miles (19,480.16 km) ESE | Porto Seguro Airport (BPS) | Porto Seguro, Brazil | |
| 4 | 12,094.54 miles (19,464.23 km) SE | Aracaju–Santa Maria Airport (AJU) | Aracaju, Sergipe, Brazil | |
| 5 | 12,036.52 miles (19,370.86 km) SSE | Maceió/Zumbi dos Palmares International Airport (MCZ) | Maceió, Brazil | |
| 6 | 11,996.47 miles (19,306.39 km) E | Pedro Otacílio Figueiredo Airport (VDC) | Vitória da Conquista, Brazil | |
| 7 | 11,951.65 miles (19,234.27 km) S | Recife/Guararapes–Gilberto Freyre International Airport (REC) | Recife, Brazil | |
| 8 | 11,932.95 miles (19,204.17 km) ESE | Coronel Horácio de Mattos Airport (LEC) | Lençõis, Bahia, Brazil | |
| 9 | 11,905.05 miles (19,159.28 km) SE | Vitória-Eurico de Aguiar Salles Airport (Goiabeiras) (VIX) | Vitória, Espírito Santo, Brazil | |
| 10 | 11,884.00 miles (19,125.40 km) S | Presidente Castro Pinto International Airport (JPA) | João Pessoa, Paraíba, Brazil | |
| 11 | 11,883.39 miles (19,124.42 km) SSE | Presidente João Suassuna Airport (CPV) | Campina Grande, Paraíba, Brazil | |
| 12 | 11,866.48 miles (19,097.20 km) E | Guanambi Airport (GNM) | Guanambi, Bahia, Brazil | |
| 13 | 11,864.21 miles (19,093.54 km) ESE | Coronel Altino Machado de Oliveira Airport (GVR) | Governador Valadares, Minas Gerais, Brazil | |
| 14 | 11,853.53 miles (19,076.36 km) SE | Petrolina–Senador Nilo Coelho Airport (PNZ) | Petrolina, Pernambuco, Brazil | |
| 15 | 11,834.75 miles (19,046.13 km) SE | Raimundo de Andrade Airport (CDI) | Cachoeiro de Itapemirim, Brazil | |