Nonstop flight route between Siena, Italy and Helena, Montana, United States:
Departure Airport:
Arrival Airport:
Distance from SAY to HLN:
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- About this route
- SAY Airport Information
- HLN Airport Information
- Facts about SAY
- Facts about HLN
- Map of Nearest Airports to SAY
- List of Nearest Airports to SAY
- Map of Furthest Airports from SAY
- List of Furthest Airports from SAY
- 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 Siena-Ampugnano Airport (SAY), Siena, Italy and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 5,325 miles (or 8,570 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 Siena-Ampugnano Airport and Helena Regional 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 Siena-Ampugnano Airport and Helena Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SAY / LIQS |
Airport Names: |
|
Location: | Siena, Italy |
GPS Coordinates: | 43°15'23"N by 11°15'18"E |
Area Served: | Siena, Tuscany, Italy |
Operator/Owner: | Aeroporto di Siena S.p.A. |
Airport Type: | Military / Public |
Elevation: | 634 feet (193 meters) |
# of Runways: | 1 |
View all routes: | Routes from SAY |
More Information: | SAY Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | HLN / KHLN |
Airport Names: |
|
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 Siena-Ampugnano Airport (SAY):
- Because of Siena-Ampugnano Airport's relatively low elevation of 634 feet, planes can take off or land at Siena-Ampugnano 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 site has recently been proposed for a new international airport capable of handling 4 million passengers a year by 2020.
- Siena-Ampugnano Airport (SAY) currently has only 1 runway.
- The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
- Siena-Ampugnano Airport handled 3,745 passengers last year.
- Siena-Ampugnano Airport is a small military airfield near Siena, in Tuscany, Italy.
- In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
- The furthest airport from Siena-Ampugnano Airport (SAY) is Chatham Islands (CHT), which is nearly antipodal to Siena-Ampugnano Airport (meaning Siena-Ampugnano Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,049 miles (19,391 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- During World War II, the facility was known as Malignano Airfield.
Facts about Helena Regional Airport (HLN):
- Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- 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.
- 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.
- Helena Regional Airport (HLN) has 3 runways.