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

About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and San Diego International Airport (SAN), San Diego, California, United States would travel a Great Circle distance of 997 miles (or 1,605 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 Helena Regional Airport and San Diego International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

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.
• 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.
• 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 closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.

Facts about San Diego International Airport (SAN):

• Because of San Diego International Airport's relatively low elevation of 17 feet, planes can take off or land at San Diego International 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 San Diego International Airport (SAN) is NAS North Island (NZY), which is located only 3 miles (5 kilometers) SSW of SAN.
• In January 2008, San Diego International Airport entered the blogosphere with the launch of the first employee blog – the Ambassablog – for a major U.S.
• The furthest airport from San Diego International Airport (SAN) is Sir Gaëtan Duval Airport (RRG), which is located 11,540 miles (18,571 kilometers) away in Rodrigues Island, Mauritius.
• San Diego International Airport (SAN) currently has only 1 runway.
• Inspired by Lindbergh's flight and excited to have made his plane, the city of San Diego passed a bond issue in 1928 for the construction of a two-runway municipal airport.
• The airport was the first federally certified airfield to serve all aircraft types, including seaplanes.
• In addition to being known as "San Diego International Airport", another name for SAN is "Lindbergh Field".
• Terrain east and west of the airport greatly impacts the available runway length.
• Built and operated by the City of San Diego through the sale of municipal bonds to be repaid by airport users, then the San Diego Unified Port District, the airport is now operated by the San Diego County Regional Airport Authority.