Nonstop flight route between Hollis, Alaska, United States and Williston, North Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from HYL to ISN:
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- About this route
- HYL Airport Information
- ISN Airport Information
- Facts about HYL
- Facts about ISN
- Map of Nearest Airports to HYL
- List of Nearest Airports to HYL
- Map of Furthest Airports from HYL
- List of Furthest Airports from HYL
- Map of Nearest Airports to ISN
- List of Nearest Airports to ISN
- Map of Furthest Airports from ISN
- List of Furthest Airports from ISN
About this route:
A direct, nonstop flight between Hollis Clark Bay Seaplane Base (HYL), Hollis, Alaska, United States and Sloulin Field International Airport (ISN), Williston, North Dakota, United States would travel a Great Circle distance of 1,324 miles (or 2,131 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 Hollis Clark Bay Seaplane Base and Sloulin Field International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HYL / |
Airport Name: | Hollis Clark Bay Seaplane Base |
Location: | Hollis, Alaska, United States |
GPS Coordinates: | 55°29'26"N by 132°37'24"W |
Area Served: | Hollis, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeastern Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from HYL |
More Information: | HYL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ISN / KISN |
Airport Name: | Sloulin Field International Airport |
Location: | Williston, North Dakota, United States |
GPS Coordinates: | 48°10'41"N by 103°38'31"W |
Area Served: | Williston, North Dakota |
Operator/Owner: | City of Williston |
Airport Type: | Public |
Elevation: | 1982 feet (604 meters) |
# of Runways: | 2 |
View all routes: | Routes from ISN |
More Information: | ISN Maps & Info |
Facts about Hollis Clark Bay Seaplane Base (HYL):
- Hollis Clark Bay Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 10,000 by 500 feet.
- Hollis Clark Bay Seaplane Base (HYL) currently has only 1 runway.
- The closest airport to Hollis Clark Bay Seaplane Base (HYL) is Thorne Bay Seaplane Base (KTB), which is located only 14 miles (23 kilometers) NNE of HYL.
- Because of Hollis Clark Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hollis Clark Bay Seaplane Base 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 furthest airport from Hollis Clark Bay Seaplane Base (HYL) is Port Alfred Airport (AFD), which is located 10,631 miles (17,108 kilometers) away in Port Alfred, South Africa.
Facts about Sloulin Field International Airport (ISN):
- The closest airport to Sloulin Field International Airport (ISN) is Sidney-Richland Municipal Airport (SDY), which is located 41 miles (67 kilometers) SW of ISN.
- The furthest airport from Sloulin Field International Airport (ISN) is Sir Gaëtan Duval Airport (RRG), which is located 10,343 miles (16,646 kilometers) away in Rodrigues Island, Mauritius.
- Sloulin Field International Airport covers an area of 740 acres at an elevation of 1,982 feet above mean sea level.
- Customs service is available for aircraft arriving from Canada and other countries.
- Sloulin Field International Airport (ISN) has 2 runways.