Nonstop flight route between Novato, California, United States and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Marin County Airport (NOT), Novato, California, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 794 miles (or 1,278 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 Marin County Airport and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Marin County Airport (NOT):

• The Wrights original privately owned airport had a dirt runway and was just west of the current airport, in what is now a grassy field.
• In addition to being known as "Marin County Airport", other names for NOT include "Gnoss Field" and "DVO".
• The closest airport to Marin County Airport (NOT) is Napa County Airport (APC), which is located only 16 miles (25 kilometers) ENE of NOT.
• Gnoss has two windsocks.
• Marin County Airport or Gnoss Field, formerly O56, is a public airport two miles northeast of Novato.
• When Gnoss Field's crosswinds exceed pilot or aircraft limitations, local pilots generally land at Petaluma Municipal / K069, 327 magnetic heading) or Napa County Airport / KAPC, 058 magnetic heading).
• Marin County Airport (NOT) currently has only 1 runway.
• The furthest airport from Marin County Airport (NOT) is Tôlanaro Airport (FTU), which is located 11,343 miles (18,254 kilometers) away in Tôlanaro, Madagascar.
• Gnoss Field is known to local pilots and flight instructors as an excellent airport to practice crosswind landings, especially during afternoons in the late spring and summer when the west wind picks up.
• In 1968 the County of Marin bought the airport and moved it to its present location.
• Because of Marin County Airport's relatively low elevation of 2 feet, planes can take off or land at Marin County 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.
• Somehow Gnoss's single runway is laid out almost exactly perpendicular to the prevailing offshore west winds.

Facts about Helena Regional Airport (HLN):

• 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.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• 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.