Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Milford Sound, New Zealand:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(44°40'23"S by 167°55'23"E)
Distance from CPS to MFN:
8,538.97 miles (13,742.11 km)
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Jump to:
- About this route
- CPS Airport Information
- MFN Airport Information
- Facts about CPS
- Facts about MFN
- 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 MFN
- List of Nearest Airports to MFN
- Map of Furthest Airports from MFN
- List of Furthest Airports from MFN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Milford Sound Airport (MFN), Milford Sound, New Zealand would travel a Great Circle distance of 8,539 miles (or 13,742 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 Milford Sound 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 Milford Sound 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: | MFN / NZMF |
| Airport Name: | Milford Sound Airport |
| Location: | Milford Sound, New Zealand |
| GPS Coordinates: | 44°40'23"S by 167°55'23"E |
| Area Served: | Milford Sound |
| Operator/Owner: | Ministry of Transport |
| Airport Type: | Public |
| Elevation: | 10 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from MFN |
| More Information: | MFN Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- 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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Milford Sound Airport (MFN):
- The furthest airport from Milford Sound Airport (MFN) is A Coruña Airport (LCG), which is nearly antipodal to Milford Sound Airport (meaning Milford Sound Airport is almost on the exact opposite side of the Earth from A Coruña Airport), and is located 12,230 miles (19,682 kilometers) away in A Coruña, Spain.
- The closest airport to Milford Sound Airport (MFN) is Queenstown Airport (ZQN), which is located 47 miles (75 kilometers) ESE of MFN.
- Post war pilot Fred ‘Popeye’ Lucas was the next to land an aircraft in Milford.
- Milford Sound Airport (MFN) currently has only 1 runway.
- 4Milford Sound Helicopters
- Because of Milford Sound Airport's relatively low elevation of 10 feet, planes can take off or land at Milford Sound 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.
| 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 | 46.63 miles (75.05 km) ESE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 2 | 65.04 miles (104.67 km) E | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 3 | 80.07 miles (128.87 km) ESE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 4 | 121.23 miles (195.11 km) ENE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 5 | 121.61 miles (195.72 km) S | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 126.19 miles (203.08 km) ENE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 7 | 133.55 miles (214.92 km) NE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 8 | 140.49 miles (226.09 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 9 | 154.07 miles (247.95 km) S | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 10 | 156.13 miles (251.26 km) E | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 11 | 164.75 miles (265.13 km) E | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 12 | 198.80 miles (319.94 km) ENE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 13 | 204.26 miles (328.72 km) NE | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 14 | 223.79 miles (360.15 km) NE | Greymouth Airport (GMN) | Greymouth, New Zealand | |
| 15 | 242.90 miles (390.90 km) ENE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,229.95 miles (19,682.14 km) WNW | A Coruña Airport (LCG) | A Coruña, Spain | |
| 2 | 12,216.77 miles (19,660.93 km) WNW | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 3 | 12,195.08 miles (19,626.03 km) NW | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 4 | 12,155.77 miles (19,562.77 km) NW | Braga Airport (BGZ) | Braga, Portugal | |
| 5 | 12,143.68 miles (19,543.30 km) NW | Francisco Sá Carneiro Airport (OPO) | Porto, Portugal | |
| 6 | 12,127.53 miles (19,517.33 km) WNW | Asturias Airport (OVD) | Oviedo, Asturias, Spain | |
| 7 | 12,115.08 miles (19,497.29 km) NW | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 8 | 12,103.98 miles (19,479.41 km) NW | Bragança Airport (BGC) | Bragança, Portugal | |
| 9 | 12,085.00 miles (19,448.87 km) WNW | León Airport (LEN) | León, Spain | |
| 10 | 12,074.59 miles (19,432.12 km) NNW | Coimbra Airport (CBP) | Coimbra, Portugal | |
| 11 | 12,052.66 miles (19,396.83 km) NW | Covilhã Airport (COV) | Covilhã, Portugal | |
| 12 | 12,019.31 miles (19,343.15 km) WNW | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 13 | 12,018.03 miles (19,341.09 km) W | Santander Airport (SDR) | Santander, Cantabria, Spain | |
| 14 | 12,016.12 miles (19,338.03 km) NW | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 15 | 12,001.96 miles (19,315.23 km) NNW | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |