Nonstop flight route between Helena, Montana, United States and Alghero, Sardinia, Italy:

About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Alghero-Fertilia Airport (AHO), Alghero, Sardinia, Italy would travel a Great Circle distance of 5,379 miles (or 8,657 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 Alghero-Fertilia 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 Alghero-Fertilia Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Helena Regional Airport (HLN):

• Helena Regional Airport (HLN) has 3 runways.
• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
• 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.
• Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.

Facts about Alghero-Fertilia Airport (AHO):

• The closest airport to Alghero-Fertilia Airport (AHO) is Olbia Costa Smeralda Airport (OLB), which is located 67 miles (107 kilometers) ENE of AHO.
• In 1980 Alitalia established a flight school at Alghero Airport which trained up to 100 pilots a year, in conjunction with a diversification of activities including air taxi and maintenance services.
• In addition to being known as "Alghero-Fertilia Airport", another name for AHO is "Aeroporto di Alghero-Fertilia".
• The furthest airport from Alghero-Fertilia Airport (AHO) is Chatham Islands (CHT), which is nearly antipodal to Alghero-Fertilia Airport (meaning Alghero-Fertilia Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,109 miles (19,488 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Alghero-Fertilia Airport handled 1,518,870 passengers last year.
• Because of Alghero-Fertilia Airport's relatively low elevation of 87 feet, planes can take off or land at Alghero-Fertilia 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 airport can be reached from the city via the Strada Statale 42 and from the rest of the island via the SS 131 Carlo Felice Highway and the SS 291.
• At the end of February 2006 there was a disagreement between the municipalities of Sassari and Alghero concerning the name of the airport and the international aviation authorities) remains "Alghero-Fertilia", although the intention of the airport management company is to change the name to "Alghero-Riviera del Corallo".
• Alghero-Fertilia Airport (AHO) currently has only 1 runway.