Nonstop flight route between Phrae, Thailand and Helena, Montana, United States:
Departure Airport:
(18°7'55"N by 100°9'54"E)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from PRH to HLN:
7,535.67 miles (12,127.46 km)
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Jump to:
- About this route
- PRH Airport Information
- HLN Airport Information
- Facts about PRH
- Facts about HLN
- Map of Nearest Airports to PRH
- List of Nearest Airports to PRH
- Map of Furthest Airports from PRH
- List of Furthest Airports from PRH
- 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 Phrae Airport (PRH), Phrae, Thailand and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 7,536 miles (or 12,127 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 Phrae 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 Phrae 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: | PRH / VTCP |
| Airport Name: | Phrae Airport |
| Location: | Phrae, Thailand |
| GPS Coordinates: | 18°7'55"N by 100°9'54"E |
| Elevation: | 0 feet (0 meters) |
| View all routes: | Routes from PRH |
| More Information: | PRH 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 Phrae Airport (PRH):
- The furthest airport from Phrae Airport (PRH) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is nearly antipodal to Phrae Airport (meaning Phrae Airport is almost on the exact opposite side of the Earth from Capitán FAP Renán Elías Olivera International Airport), and is located 12,050 miles (19,393 kilometers) away in Pisco, Peru.
- Because of Phrae Airport's relatively low elevation of 0 feet, planes can take off or land at Phrae 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 Phrae Airport (PRH) is Lampang Airport (LPT), which is located 44 miles (71 kilometers) WNW of PRH.
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.
- Helena Regional Airport (HLN) has 3 runways.
- Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- 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 | 44.42 miles (71.49 km) WNW | Lampang Airport (LPT) | Lampang, Thailand |     |
| 2 | 65.88 miles (106.03 km) SSW | Sukhothai Airport (THS) | Sukhothai, Thailand | |
| 3 | 90.19 miles (145.14 km) WNW | Chiang Mai International Airport (CNX) | Chiang Mai, Thailand | |
| 4 | 104.42 miles (168.05 km) SW | Tak Airport (TKT) | Tak, Thailand | |
| 5 | 113.07 miles (181.97 km) ESE | Loei Airport (LOE) | Loei, Thailand | |
| 6 | 121.39 miles (195.37 km) SE | Phetchabun Airport (PHY) | Phetchabun, Thailand | |
| 7 | 127.09 miles (204.54 km) N | Chiang Rai International Airport (CEI) | Chiang Rai, Thailand | |
| 8 | 127.74 miles (205.57 km) NE | Sayaboury Airport (ZBY) | Sayaboury, Laos | |
| 9 | 141.32 miles (227.43 km) NW | Pai Airport (PYY) | Pai, Thailand | |
| 10 | 145.61 miles (234.33 km) SW | Mae Sot Airport (MAQ) | Mae Sot, Tak Province, Thailand | |
| 11 | 147.93 miles (238.07 km) N | Ban Huoeisay Airport (HOE) | Houeisay, Laos | |
| 12 | 157.86 miles (254.04 km) E | Wattay International Airport (VTE) | Vientiane, Laos | |
| 13 | 163.16 miles (262.57 km) N | Tachilek Airport (THL) | Tachilek, Myanmar (Burma) | |
| 14 | 164.52 miles (264.76 km) WNW | Mae Hong Son Airport (HGN) | Mae Hong Son, Thailand | |
| 15 | 178.51 miles (287.29 km) NE | Luang Prabang International Airport (LPQ) | Luang Prabang, Laos | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,050.12 miles (19,392.74 km) SW | Capitán FAP Renán Elías Olivera International Airport (PIO) | Pisco, Peru | |
| 2 | 12,042.44 miles (19,380.38 km) SW | Maria Reiche Neuman Airport (NZC) | Nazca, Ica Region, Peru | |
| 3 | 11,977.30 miles (19,275.55 km) SSW | Jorge Chávez International Airport (LIM) | Callao (near Lima), Peru | |
| 4 | 11,928.36 miles (19,196.78 km) SW | Coronel FAP Alfredo Mendívil Duarte Airport (AYP) | Ayacucho, Peru | |
| 5 | 11,928.36 miles (19,196.78 km) SW | Coronel FAP Alfredo Mendívil Duarte Airport (AYC) | Ayacucho, Peru | |
| 6 | 11,910.39 miles (19,167.87 km) SW | Jauja AirportFrancisco Carle Airport (JAU) | Jauja, Peru | |
| 7 | 11,908.96 miles (19,165.57 km) SW | Andahuaylas Airport (ANS) | Andahuaylas, Peru | |
| 8 | 11,878.43 miles (19,116.44 km) WSW | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 9 | 11,877.79 miles (19,115.41 km) W | Ilo Airport (ILQ) | Ilo, Moquegua Region, Peru | |
| 10 | 11,823.77 miles (19,028.46 km) WSW | Alejandro Velasco Astete International Airport (CUZ) | Cusco, Cusco Region, Peru | |
| 11 | 11,816.88 miles (19,017.38 km) SSW | Alf. FAP David Figueroa Fernandini (HUU) | Huánuco, Huánuco Region, Peru | |
| 12 | 11,813.52 miles (19,011.97 km) W | Chacalluta International Airport (ARI) | Arica, Chile | |
| 13 | 11,813.52 miles (19,011.97 km) W | Chacalluta International Airport (ACM) | Arica, Amazonas, Colombia | |
| 14 | 11,811.57 miles (19,008.83 km) SSW | Comandante FAP Germán Arias Graziani Airport (ATA) | Huaraz, Peru | |
| 15 | 11,809.97 miles (19,006.26 km) S | Teniente FAP Jaime Montreuil Morales Airport (CHM) | Chimbote, Ancash Region, Peru | |
| 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 | |