Nonstop flight route between Isiro, Democratic Republic of the Congo and Helena, Montana, United States:
Departure Airport:
(2°49'39"N by 27°35'17"E)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from IRP to HLN:
8,229.64 miles (13,244.28 km)
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Jump to:
- About this route
- IRP Airport Information
- HLN Airport Information
- Facts about IRP
- Facts about HLN
- Map of Nearest Airports to IRP
- List of Nearest Airports to IRP
- Map of Furthest Airports from IRP
- List of Furthest Airports from IRP
- 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 Matari Airport (IRP), Isiro, Democratic Republic of the Congo and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,230 miles (or 13,244 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 Matari 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 Matari 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: | IRP / FZJH |
| Airport Name: | Matari Airport |
| Location: | Isiro, Democratic Republic of the Congo |
| GPS Coordinates: | 2°49'39"N by 27°35'17"E |
| Area Served: | Isiro |
| Operator/Owner: | Government |
| Airport Type: | Civil |
| Elevation: | 2438 feet (743 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IRP |
| More Information: | IRP 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 Matari Airport (IRP):
- The furthest airport from Matari Airport (IRP) is Cassidy International Airport (CXI), which is located 11,960 miles (19,248 kilometers) away in Christmas Island, Kiribati.
- The closest airport to Matari Airport (IRP) is Buta Zega Airport (BZU), which is located 193 miles (310 kilometers) W of IRP.
- Matari Airport (IRP) currently has only 1 runway.
Facts about Helena Regional Airport (HLN):
- Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- Helena Regional Airport (HLN) has 3 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 192.86 miles (310.38 km) W | Buta Zega Airport (BZU) | Buta Zega, Democratic Republic of the Congo |     |
| 2 | 201.58 miles (324.40 km) ESE | Bunia Airport (BUX) | Bunia, Ituri, Democratic Republic of the Congo | |
| 3 | 202.92 miles (326.57 km) SE | Beni Airport (BNC) | Beni, Nord-Kivu, Democratic Republic of the Congo | |
| 4 | 207.37 miles (333.73 km) NNW | M'Boki Airport (MKI) | Obo, Central African Republic | |
| 5 | 224.54 miles (361.37 km) SW | Bangoka International Airport (FKI) | Kisangani, Democratic Republic of the Congo | |
| 6 | 227.88 miles (366.74 km) NW | Zemio Airport (IMO) | Zemio, Central African Republic | |
| 7 | 229.86 miles (369.92 km) E | Arua Airport (RUA) | Arua, Uganda | |
| 8 | 251.71 miles (405.09 km) SE | Kasese Airport (KSE) | Kasese, Uganda | |
| 9 | 258.05 miles (415.29 km) WSW | Yangambi Airport (YAN) | Yangambi, Democratic Republic of the Congo | |
| 10 | 272.05 miles (437.83 km) E | Kabalega Falls Airport (KBG) | Kabalega Falls, Uganda | |
| 11 | 277.15 miles (446.03 km) E | Pakuba Airport (PAF) | Pakuba, Uganda | |
| 12 | 295.82 miles (476.08 km) ESE | Masindi Airport (KCU) | Masindi, Uganda | |
| 13 | 310.60 miles (499.85 km) ENE | Juba International Airport (JUB) | Juba, South Sudan | |
| 14 | 312.87 miles (503.52 km) SE | Mbarara Airport (MBQ) | Mbarara, Uganda | |
| 15 | 330.98 miles (532.66 km) SSE | Goma Airport (GOM) | Goma, Democratic Republic of the Congo | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,960.41 miles (19,248.36 km) SE | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,649.87 miles (18,748.61 km) SE | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 3 | 11,567.38 miles (18,615.85 km) SSW | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 4 | 11,532.06 miles (18,559.00 km) SSW | Ahe Airport (AHE) | Ahe, French Polynesia | |
| 5 | 11,525.53 miles (18,548.50 km) SSW | Manihi Airport (XMH) | Manihi, French Polynesia | |
| 6 | 11,497.14 miles (18,502.80 km) S | Maupiti Airport (MAU) | Maupiti, Leeward Islands, French Polynesia | |
| 7 | 11,494.95 miles (18,499.28 km) S | Bora Bora Airport (BOB) | Bora Bora, French Polynesia | |
| 8 | 11,492.46 miles (18,495.27 km) SSW | Arutua Airport (AXR) | Arutua, Tuamotus, French Polynesia | |
| 9 | 11,474.54 miles (18,466.44 km) S | Huahine – Fare Airport (HUH) | Huahine, Society Islands, French Polynesia | |
| 10 | 11,466.21 miles (18,453.03 km) SSW | Apataki Airport (APK) | Apataki, French Polynesia | |
| 11 | 11,414.01 miles (18,369.02 km) SSW | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 12 | 11,407.95 miles (18,359.27 km) S | Moorea Airport (MOZ) | Moorea, Windward Islands, French Polynesia | |
| 13 | 11,401.55 miles (18,348.98 km) S | Fa'a'ā International Airport (PPT) | Papeete, Tahiti, French Polynesia | |
| 14 | 11,399.69 miles (18,345.98 km) WSW | Atuona Airport (AUQ) | Atuona, Marquesas Islands, French Polynesia | |
| 15 | 11,329.71 miles (18,233.35 km) SSW | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 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 | |