Nonstop flight route between Inongo, Democratic Republic of the Congo and Helena, Montana, United States:
Departure Airport:
(1°56'49"S by 18°17'8"E)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from INO to HLN:
8,148.63 miles (13,113.92 km)
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Jump to:
- About this route
- INO Airport Information
- HLN Airport Information
- Facts about INO
- Facts about HLN
- Map of Nearest Airports to INO
- List of Nearest Airports to INO
- Map of Furthest Airports from INO
- List of Furthest Airports from INO
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Inongo Airport (INO), Inongo, Democratic Republic of the Congo and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,149 miles (or 13,114 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 Inongo Airport and Helena Regional 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 Inongo Airport and Helena Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | INO / FZBA |
| Airport Name: | Inongo Airport |
| Location: | Inongo, Democratic Republic of the Congo |
| GPS Coordinates: | 1°56'49"S by 18°17'8"E |
| Airport Type: | Public |
| Elevation: | 1040 feet (317 meters) |
| View all routes: | Routes from INO |
| More Information: | INO Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HLN / KHLN |
| Airport Names: |
|
| Location: | Helena, Montana, United States |
| GPS Coordinates: | 46°36'24"N by 111°58'58"W |
| Area Served: | Helena, Montana |
| Operator/Owner: | Helena Regional Airport Authority |
| Airport Type: | Public |
| Elevation: | 3877 feet (1,182 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from HLN |
| More Information: | HLN Maps & Info |
Facts about Inongo Airport (INO):
- The closest airport to Inongo Airport (INO) is Basango Mboliasa Airport (KRZ), which is located 60 miles (97 kilometers) NE of INO.
- The furthest airport from Inongo Airport (INO) is Cassidy International Airport (CXI), which is nearly antipodal to Inongo Airport (meaning Inongo Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,135 miles (19,530 kilometers) away in Christmas Island, Kiribati.
Facts about Helena Regional Airport (HLN):
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
- Helena Regional Airport (HLN) has 3 runways.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 60.11 miles (96.73 km) NE | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo |     |
| 2 | 67.49 miles (108.61 km) SW | Nioki Airport (NIO) | Nioki, Democratic Republic of the Congo | |
| 3 | 113.02 miles (181.90 km) SSW | Bandundu Airport (FDU) | Bandundu, Democratic Republic of the Congo | |
| 4 | 136.09 miles (219.02 km) N | Mbandaka Airport (MDK) | Mbandaka, Democratic Republic of the Congo | |
| 5 | 167.12 miles (268.96 km) W | Gamboma Airport (GMM) | Gamboma, Republic of the Congo | |
| 6 | 171.36 miles (275.78 km) WNW | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo | |
| 7 | 188.69 miles (303.66 km) WNW | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 8 | 210.21 miles (338.30 km) WNW | Boundji Airport (BOE) | Boundji, Republic of the Congo | |
| 9 | 213.09 miles (342.94 km) ENE | Boende Airport (BNB) | Boende, Democratic Republic of the Congo | |
| 10 | 216.17 miles (347.89 km) S | Kikwit Airport (KKW) | Kikwit, Democratic Republic of the Congo | |
| 11 | 220.79 miles (355.33 km) SE | Basongo Airport (BAN) | Basongo, Democratic Republic of the Congo | |
| 12 | 229.45 miles (369.26 km) NW | Makoua Airport (MKJ) | Makoua, Republic of the Congo | |
| 13 | 229.57 miles (369.46 km) SSE | Idiofa Airport (IDF) | Idiofa, Democratic Republic of the Congo | |
| 14 | 242.51 miles (390.29 km) NNE | Basankusu Airport (BSU) | Basankusu, Democratic Republic of the Congo | |
| 15 | 244.93 miles (394.17 km) N | Impfondo Airport (ION) | Impfondo, Republic of the Congo | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,135.41 miles (19,530.00 km) W | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,673.62 miles (18,786.83 km) ESE | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 11,583.62 miles (18,641.98 km) S | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 4 | 11,285.46 miles (18,162.15 km) NNE | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 5 | 11,201.58 miles (18,027.15 km) SSE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 6 | 11,198.20 miles (18,021.71 km) SSE | Tau Airport (TAV) | Tau, American Samoa | |
| 7 | 11,196.24 miles (18,018.55 km) SSE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 8 | 11,157.97 miles (17,956.97 km) SSE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 9 | 11,149.25 miles (17,942.93 km) NNW | Kona International Airport at Keāhole (KOA) | Kailua / Kona, Hawaii, United States | |
| 10 | 11,147.30 miles (17,939.79 km) SSE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 11 | 11,138.55 miles (17,925.71 km) SSE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 12 | 11,135.86 miles (17,921.39 km) NNW | Pōhakuloa Training Area (BSF) | Camp Pohakuloa, Hawaii, United States | |
| 13 | 11,134.16 miles (17,918.64 km) SSE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 14 | 11,133.28 miles (17,917.23 km) SE | Asau Airport (AAU) | Asau, Samoa | |
| 15 | 11,128.83 miles (17,910.07 km) NNW | Hilo International Airport (ITO) | Hilo, Hawaii, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 51.31 miles (82.58 km) SSW | Bert Mooney Airport (BTM) | Butte, Montana, United States | |
| 2 | 67.05 miles (107.90 km) NNE | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 3 | 69.72 miles (112.21 km) SE | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 4 | 72.47 miles (116.63 km) NNE | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 5 | 96.56 miles (155.40 km) SE | Mission Field (LVM) | Livingston, Montana, United States | |
| 6 | 97.30 miles (156.59 km) SSW | Dillon Airport (DLN) | Dillon, Montana, United States | |
| 7 | 102.03 miles (164.20 km) WNW | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 8 | 122.80 miles (197.63 km) ENE | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 9 | 133.72 miles (215.20 km) N | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 10 | 137.25 miles (220.89 km) SW | Lemhi County Airport (SMN) | Salmon, Idaho, United States | |
| 11 | 138.97 miles (223.65 km) SSE | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 12 | 139.51 miles (224.52 km) N | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 13 | 158.54 miles (255.14 km) NW | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| 14 | 163.70 miles (263.45 km) E | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 15 | 169.14 miles (272.20 km) NE | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,563.08 miles (16,999.59 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,552.15 miles (16,981.99 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,548.64 miles (16,976.36 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,536.59 miles (16,956.96 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,525.82 miles (16,939.62 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,452.26 miles (16,821.24 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,363.52 miles (16,678.43 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,340.10 miles (16,640.74 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,252.07 miles (16,499.06 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,247.66 miles (16,491.97 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,235.05 miles (16,471.68 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,200.52 miles (16,416.11 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,189.58 miles (16,398.51 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,174.40 miles (16,374.07 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,162.80 miles (16,355.40 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |