Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Hamadan, Iran:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(34°52'9"N by 48°33'9"E)
Distance from CPS to HDM:
6,716.64 miles (10,809.37 km)
Share this route:
Jump to:
- About this route
- CPS Airport Information
- HDM Airport Information
- Facts about CPS
- Facts about HDM
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to HDM
- List of Nearest Airports to HDM
- Map of Furthest Airports from HDM
- List of Furthest Airports from HDM
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Hamadan Airport (HDM), Hamadan, Iran would travel a Great Circle distance of 6,717 miles (or 10,809 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 Downtown Airport and Hamadan 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 Downtown Airport and Hamadan Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HDM / OIHH |
| Airport Name: | Hamadan Airport |
| Location: | Hamadan, Iran |
| GPS Coordinates: | 34°52'9"N by 48°33'9"E |
| Area Served: | Hamadan |
| Operator/Owner: | Civil Government |
| Airport Type: | Civil |
| Elevation: | 5755 feet (1,754 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HDM |
| More Information: | HDM Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
Facts about Hamadan Airport (HDM):
- Hamadan Airport (HDM) currently has only 1 runway.
- The closest airport to Hamadan Airport (HDM) is Shahid Ashrafi Esfahani Airport (KSH), which is located 87 miles (140 kilometers) WSW of HDM.
- The furthest airport from Hamadan Airport (HDM) is Totegegie Airport (GMR), which is located 11,597 miles (18,663 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
- Because of Hamadan Airport's high elevation of 5,755 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDM. Combined with a high temperature, this could make HDM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 87.15 miles (140.25 km) WSW | Shahid Ashrafi Esfahani Airport (KSH) | Kermanshah, Iran | |
| 2 | 100.26 miles (161.35 km) S | Khorramabad Airport (KHD) | Khorramabad, Iran | |
| 3 | 151.66 miles (244.07 km) ENE | Tehran Imam Khomeini International Airport (IKA) | Tehran, Iran | |
| 4 | 165.72 miles (266.69 km) ENE | Mehrabad Airport (THR) | Tehran, Iran | |
| 5 | 168.46 miles (271.11 km) S | Dezful Airport (DEF) | Dezful, Iran | |
| 6 | 188.92 miles (304.03 km) WNW | Sulaimaniyah International Airport (ISU) | Sulaimaniyah, Kurdistan, Iraq | |
| 7 | 221.23 miles (356.03 km) SE | Shahrekord International Airport (CQD) | Shahrekord, Iran | |
| 8 | 238.92 miles (384.50 km) N | Ardabil Airport (ADU) | Ardabil, Iran | |
| 9 | 239.77 miles (385.87 km) SE | Isfahan International Airport (IFN) | Isfahan, Iran | |
| 10 | 244.32 miles (393.19 km) S | Ahwaz International Airport (AWZ) | Ahwaz, Iran | |
| 11 | 246.05 miles (395.97 km) ENE | Bishe Kola Air Base (BSM) | Amol, Iran | |
| 12 | 259.69 miles (417.92 km) NNW | Tabriz International Airport (TBZ) | Tabriz, Iran | |
| 13 | 269.10 miles (433.07 km) N | Lankaran International Airport (LLK) | Lankaran, Azerbaijan | |
| 14 | 270.90 miles (435.97 km) WSW | Baghdad International Airport (BGW) | Baghdad, Iraq | |
| 15 | 270.90 miles (435.97 km) WSW | Baghdad International Airport (SDA) | Baghdad, Iraq | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,596.63 miles (18,662.92 km) SSE | Totegegie Airport (GMR) | Mangareva, Gambier Islands, French Polynesia | |
| 2 | 11,370.89 miles (18,299.62 km) SSE | Tureira Airport (ZTA) | Tureia, Tuamotus, French Polynesia | |
| 3 | 11,270.54 miles (18,138.13 km) SSE | Nukutavake Airport (NUK) | Nukutavake, Tuamotus, French Polynesia | |
| 4 | 11,241.70 miles (18,091.71 km) SSE | Pukarua Airport (PUK) | Pukarua, Tuamotus, French Polynesia | |
| 5 | 11,137.91 miles (17,924.68 km) SSE | Hao Airport (HOI) | Hao, Tuamotu Island, French Polynesia | |
| 6 | 11,032.01 miles (17,754.25 km) WSW | Mataveri International Airport (IPC) | Easter Island, Chile | |
| 7 | 10,996.57 miles (17,697.22 km) SSE | Fangatau Airport (FGU) | Fangatau, French Polynesia | |
| 8 | 10,968.04 miles (17,651.31 km) SSE | Raroia Airport (RRR) | Raroia, French Polynesia | |
| 9 | 10,965.75 miles (17,647.62 km) SE | Makemo Airport (MKP) | Makemo, French Polynesia | |
| 10 | 10,959.38 miles (17,637.37 km) ESE | Rurutu Airport (RUR) | Rurutu, French Polynesia | |
| 11 | 10,948.23 miles (17,619.42 km) SE | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 12 | 10,867.39 miles (17,489.33 km) SE | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 13 | 10,812.61 miles (17,401.16 km) SE | Apataki Airport (APK) | Apataki, French Polynesia | |
| 14 | 10,799.81 miles (17,380.57 km) SE | Fa'a'ā International Airport (PPT) | Papeete, Tahiti, French Polynesia | |
| 15 | 10,789.90 miles (17,364.61 km) SE | Moorea Airport (MOZ) | Moorea, Windward Islands, French Polynesia | |