Nonstop flight route between Summerside, Prince Edward Island, Canada and Helena, Montana, United States:
Departure Airport:
Arrival Airport:
Distance from YSU to HLN:
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- About this route
 - YSU Airport Information
 - HLN Airport Information
 - Facts about YSU
 - Facts about HLN
 - Map of Nearest Airports to YSU
 - List of Nearest Airports to YSU
 - Map of Furthest Airports from YSU
 - List of Furthest Airports from YSU
 - 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 Summerside Airport (YSU), Summerside, Prince Edward Island, Canada and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 2,253 miles (or 3,625 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 Summerside 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: | YSU / CYSU | 
| Airport Names: | 
                    
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| Location: | Summerside, Prince Edward Island, Canada | 
| GPS Coordinates: | 46°26'26"N by 63°50'0"W | 
| Operator/Owner: | Slemon Park Corporation | 
| Airport Type: | public | 
| Elevation: | 56 feet (17 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from YSU | 
| More Information: | YSU Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | HLN / KHLN | 
| Airport Names: | 
                    
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| 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 Summerside Airport (YSU):
- The closest airport to Summerside Airport (YSU) is Charlottetown Airport (YYG), which is located 36 miles (57 kilometers) ESE of YSU.
 - The Summerside Airport's airfield and terminal facilities are located in the township of Lot 17 and not in the city of Summerside proper.
 - Summerside Airport (YSU) currently has only 1 runway.
 - In addition to being known as "Summerside Airport", another name for YSU is "CFB Summerside".
 - The furthest airport from Summerside Airport (YSU) is Albany Airport (ALH), which is located 11,638 miles (18,729 kilometers) away in Albany, Western Australia, Australia.
 - Because of Summerside Airport's relatively low elevation of 56 feet, planes can take off or land at Summerside 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.
 
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.
 - 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.
 - In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
 - Helena Regional Airport (HLN) has 3 runways.
 - 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.
 
