Nonstop flight route between Center Island, Washington, United States and Helena, Montana, United States:
Departure Airport:
(48°29'24"N by 122°49'54"W)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from CWS to HLN:
521.91 miles (839.93 km)
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Jump to:
- About this route
- CWS Airport Information
- HLN Airport Information
- Facts about CWS
- Facts about HLN
- Map of Nearest Airports to CWS
- List of Nearest Airports to CWS
- Map of Furthest Airports from CWS
- List of Furthest Airports from CWS
- 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 Center Island Airport (CWS), Center Island, Washington, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 522 miles (or 840 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 relatively short distance between Center Island Airport and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | CWS / |
| Airport Names: |
|
| Location: | Center Island, Washington, United States |
| GPS Coordinates: | 48°29'24"N by 122°49'54"W |
| Operator/Owner: | Center Island Association |
| Airport Type: | Private |
| Elevation: | 115 feet (35 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CWS |
| More Information: | CWS 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 Center Island Airport (CWS):
- In addition to being known as "Center Island Airport", another name for CWS is "78WA".
- Because of Center Island Airport's relatively low elevation of 115 feet, planes can take off or land at Center Island 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.
- Center Island Airport (CWS) currently has only 1 runway.
- The furthest airport from Center Island Airport (CWS) is Tôlanaro Airport (FTU), which is located 10,724 miles (17,259 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Center Island Airport (CWS) is Fishermans Bay/LPS Seaplane Base (LPS), which is located only 4 miles (7 kilometers) WNW of CWS.
Facts about Helena Regional Airport (HLN):
- 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 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.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 4.35 miles (7.01 km) WNW | Fishermans Bay/LPS Seaplane Base (LPS) | Lopez Island, Washington, United States |     |
| 2 | 7.77 miles (12.50 km) E | Anacortes Airport (OTS) | Anacortes, Washington, United States | |
| 3 | 8.78 miles (14.13 km) WNW | Friday Harbor Seaplane Base (FBS) | Friday Harbor, Washington, United States | |
| 4 | 9.10 miles (14.64 km) WNW | Friday Harbor Airport (FRD) | Friday Harbor, Washington, United States | |
| 5 | 10.53 miles (16.95 km) NNW | Westsound Seaplane Base (WSX) | Westsound, Orcas Island, Washington, United States | |
| 6 | 10.88 miles (17.50 km) N | Rosario Seaplane Base (RSJ) | Orcas Island, Washington, United States | |
| 7 | 12.49 miles (20.10 km) SE | NAS Whidbey Island (NUW) | Oak Harbor, Washington, United States | |
| 8 | 15.49 miles (24.93 km) NNW | Orcas Island Airport (ESD) | Eastsound, Washington, United States | |
| 9 | 17.08 miles (27.48 km) WNW | Roche Harbor Seaplane Base (RCE) | San Juan Island, Washington, United States | |
| 10 | 17.99 miles (28.96 km) SSE | A.J. Eisenberg Airport (ODW) | Oak Harbor, Washington, United States | |
| 11 | 18.86 miles (30.36 km) E | Skagit Regional Airport (MVW) | Burlington / Mount Vernon, Washington, United States | |
| 12 | 24.84 miles (39.98 km) NNE | Bellingham International Airport (BLI) | Bellingham, Washington, United States | |
| 13 | 25.33 miles (40.76 km) NW | Bedwell Harbour Water Aerodrome (YBW) | Bedwell Harbour, British Columbia, Canada | |
| 14 | 25.89 miles (41.66 km) W | Victoria Inner Harbour Airport (YWH) | Victoria, British Columbia, Canada | |
| 15 | 26.34 miles (42.38 km) W | Esquimalt Airport (YPF) | Esquimalt, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,724.26 miles (17,258.98 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,659.50 miles (17,154.76 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,584.67 miles (17,034.34 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,578.26 miles (17,024.01 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,569.67 miles (17,010.20 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,557.17 miles (16,990.08 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 7 | 10,546.78 miles (16,973.35 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 10,542.31 miles (16,966.16 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,535.38 miles (16,955.00 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 10 | 10,531.57 miles (16,948.88 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,527.62 miles (16,942.53 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 12 | 10,516.77 miles (16,925.06 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,497.83 miles (16,894.58 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 14 | 10,497.75 miles (16,894.45 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 15 | 10,489.36 miles (16,880.94 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 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 | |