Nonstop flight route between John Day, Oregon, United States and Siena, Italy:
Departure Airport:

Arrival Airport:

Distance from JDA to SAY:
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- About this route
- JDA Airport Information
- SAY Airport Information
- Facts about JDA
- Facts about SAY
- Map of Nearest Airports to JDA
- List of Nearest Airports to JDA
- Map of Furthest Airports from JDA
- List of Furthest Airports from JDA
- Map of Nearest Airports to SAY
- List of Nearest Airports to SAY
- Map of Furthest Airports from SAY
- List of Furthest Airports from SAY
About this route:
A direct, nonstop flight between Grant County Regional Airport (GCRA) (JDA), John Day, Oregon, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 5,648 miles (or 9,090 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 Grant County Regional Airport (GCRA) and Siena-Ampugnano 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 Grant County Regional Airport (GCRA) and Siena-Ampugnano Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | JDA / KGCD |
Airport Names: |
|
Location: | John Day, Oregon, United States |
GPS Coordinates: | 44°24'10"N by 118°58'4"W |
Area Served: | John Day, Oregon |
Operator/Owner: | Grant County |
Airport Type: | Public |
Elevation: | 3703 feet (1,129 meters) |
# of Runways: | 2 |
View all routes: | Routes from JDA |
More Information: | JDA Maps & Info |
Arrival 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 |
Facts about Grant County Regional Airport (GCRA) (JDA):
- In addition to being known as "Grant County Regional Airport (GCRA)", other names for JDA include "Ogilvie Field" and "GCD".
- Grant County Regional Airport (GCRA) (JDA) has 2 runways.
- Grant County Regional Airport covers an area of 335 acres at an elevation of 3,703 feet above mean sea level.
- The furthest airport from Grant County Regional Airport (GCRA) (JDA) is Tôlanaro Airport (FTU), which is located 10,883 miles (17,515 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Grant County Regional Airport (GCRA) (JDA) is Burns Municipal Airport (BNO), which is located 56 miles (90 kilometers) S of JDA.
Facts about Siena-Ampugnano Airport (SAY):
- The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of 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 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.
- The airport resides at an elevation of 634 feet above mean sea level.
- Siena-Ampugnano Airport (SAY) currently has only 1 runway.
- In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
- Siena-Ampugnano Airport handled 3,745 passengers last year.