Nonstop flight route between Helena, Montana, United States and Sliač, Slovakia:
Departure Airport:
(46°36'24"N by 111°58'58"W)
Arrival Airport:
(48°38'17"N by 19°8'3"E)
Distance from HLN to SLD:
5,230.96 miles (8,418.39 km)
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Jump to:
- About this route
- HLN Airport Information
- SLD Airport Information
- Facts about HLN
- Facts about SLD
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
- Map of Nearest Airports to SLD
- List of Nearest Airports to SLD
- Map of Furthest Airports from SLD
- List of Furthest Airports from SLD
About this route:
A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Sliač Airport (SLD), Sliač, Slovakia would travel a Great Circle distance of 5,231 miles (or 8,418 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 Helena Regional Airport and Sliač 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 Helena Regional Airport and Sliač Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | SLD / LZSL |
| Airport Names: |
|
| Location: | Sliač, Slovakia |
| GPS Coordinates: | 48°38'17"N by 19°8'3"E |
| Operator/Owner: | Letisko Sliač a.s. |
| Airport Type: | Public / Military |
| Elevation: | 1043 feet (318 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SLD |
| More Information: | SLD Maps & Info |
Facts about Helena Regional Airport (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.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- Helena Regional Airport (HLN) has 3 runways.
- Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
Facts about Sliač Airport (SLD):
- Sliač Airport (SLD) currently has only 1 runway.
- The furthest airport from Sliač Airport (SLD) is Chatham Islands (CHT), which is located 11,622 miles (18,704 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- In addition to being known as "Sliač Airport", another name for SLD is "Letisko Sliač".
- The closest airport to Sliač Airport (SLD) is Žilina Airport (ILZ), which is located 47 miles (76 kilometers) NNW of SLD.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 47.32 miles (76.16 km) NNW | Žilina Airport (ILZ) | Žilina, Slovakia | |
| 2 | 58.63 miles (94.36 km) ENE | Poprad-Tatry Airport (TAT) | Poprad, Slovakia | |
| 3 | 59.62 miles (95.95 km) W | Piešťany Airport (PZY) | Piešťany, Slovakia | |
| 4 | 81.67 miles (131.43 km) WNW | Kunovice Airport (UHE) | Uherské Hradiště, Czech Republic | |
| 5 | 83.03 miles (133.62 km) S | Budapest Ferenc Liszt International Airport (BUD) | Budapest, Hungary | |
| 6 | 83.47 miles (134.33 km) ESE | Miskolc Airport (MCQ) | Miskolc, Hungary | |
| 7 | 86.49 miles (139.20 km) NNW | Leoš Janáček Airport Ostrava (OSR) | Ostrava, Czech Republic | |
| 8 | 93.88 miles (151.08 km) WSW | Bratislava Airport (BTS) | Bratislava, Slovakia | |
| 9 | 96.19 miles (154.80 km) E | Košice International Airport (KSC) | Košice, Slovakia | |
| 10 | 103.69 miles (166.88 km) NNE | John Paul II International Airport Kraków–Balice (KRK) | Kraków / Balice, Poland | |
| 11 | 116.36 miles (187.26 km) WNW | Brno–Tuřany Airport (BRQ) | Brno, Czech Republic | |
| 12 | 123.21 miles (198.29 km) WSW | Vienna International Airport (VIE) | Vienna, Austria | |
| 13 | 126.89 miles (204.20 km) N | Katowice International Airport (KTW) | Katowice / Pyrzowice, Poland | |
| 14 | 139.38 miles (224.31 km) SE | Debrecen International Airport (DEB) | Debrecen, Hajdú-Bihar, Hungary | |
| 15 | 163.18 miles (262.60 km) SW | Hévíz-Balaton Airport (SOB) | Sármellék, Hungary | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,622.21 miles (18,704.09 km) ESE | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,181.03 miles (17,994.07 km) ESE | Gisborne Airport (GIS) | Gisborne, New Zealand | |
| 3 | 11,175.69 miles (17,985.48 km) ESE | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 4 | 11,169.48 miles (17,975.49 km) ESE | Hawke's Bay Airport (NPE) | Napier, New Zealand | |
| 5 | 11,152.08 miles (17,947.49 km) ESE | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 6 | 11,149.99 miles (17,944.13 km) ESE | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 7 | 11,144.76 miles (17,935.70 km) ESE | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 8 | 11,135.91 miles (17,921.46 km) E | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 11,120.32 miles (17,896.37 km) E | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,117.30 miles (17,891.52 km) ESE | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 11 | 11,110.21 miles (17,880.11 km) ESE | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 12 | 11,105.26 miles (17,872.14 km) ESE | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 13 | 11,103.82 miles (17,869.81 km) ESE | Whakatane Airport (WHK) | Whakatane, New Zealand | |
| 14 | 11,098.65 miles (17,861.51 km) E | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 15 | 11,094.06 miles (17,854.11 km) E | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |