Nonstop flight route between Xi'an, Shaanxi, China and St. Marys, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from SIA to STQ:
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- About this route
- SIA Airport Information
- STQ Airport Information
- Facts about SIA
- Facts about STQ
- Map of Nearest Airports to SIA
- List of Nearest Airports to SIA
- Map of Furthest Airports from SIA
- List of Furthest Airports from SIA
- Map of Nearest Airports to STQ
- List of Nearest Airports to STQ
- Map of Furthest Airports from STQ
- List of Furthest Airports from STQ
About this route:
A direct, nonstop flight between Xi'an Xiguan Airport (SIA), Xi'an, Shaanxi, China and St. Marys Municipal Airport (STQ), St. Marys, Pennsylvania, United States would travel a Great Circle distance of 7,178 miles (or 11,552 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 Xi'an Xiguan Airport and St. Marys Municipal 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 Xi'an Xiguan Airport and St. Marys Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SIA / ZLSN |
Airport Names: |
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Location: | Xi'an, Shaanxi, China |
GPS Coordinates: | 34°22'36"N by 109°7'12"E |
Area Served: | Xi'an |
Airport Type: | Public (defunct) |
# of Runways: | 1 |
View all routes: | Routes from SIA |
More Information: | SIA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | STQ / KOYM |
Airport Names: |
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Location: | St. Marys, Pennsylvania, United States |
GPS Coordinates: | 41°24'45"N by 78°30'8"W |
Area Served: | St. Marys, Pennsylvania |
Operator/Owner: | City of St. Marys |
Airport Type: | Public |
Elevation: | 1934 feet (589 meters) |
# of Runways: | 1 |
View all routes: | Routes from STQ |
More Information: | STQ Maps & Info |
Facts about Xi'an Xiguan Airport (SIA):
- The furthest airport from Xi'an Xiguan Airport (SIA) is La Unión Airport (LUI), which is nearly antipodal to Xi'an Xiguan Airport (meaning Xi'an Xiguan Airport is almost on the exact opposite side of the Earth from La Unión Airport), and is located 12,392 miles (19,943 kilometers) away in La Unión, Honduras[disambiguation needed].
- Xi'an Xiguan Airport (SIA) currently has only 1 runway.
- The closest airport to Xi'an Xiguan Airport (SIA) is Xi'an Xianyang International Airport (XIY), which is located 22 miles (35 kilometers) WNW of SIA.
- In addition to being known as "Xi'an Xiguan Airport", other names for SIA include "西安西关机场" and "Xī'ān Xīguān Jīchǎng".
Facts about St. Marys Municipal Airport (STQ):
- The furthest airport from St. Marys Municipal Airport (STQ) is Margaret River Airport (MGV), which is located 11,533 miles (18,560 kilometers) away in Margaret River, Western Australia, Australia.
- St. Marys Municipal Airport (STQ) currently has only 1 runway.
- The closest airport to St. Marys Municipal Airport (STQ) is DuBois Regional Airport (DUJ), which is located 26 miles (42 kilometers) SW of STQ.
- In addition to being known as "St. Marys Municipal Airport", another name for STQ is "OYM".