Nonstop flight route between Portsmouth, Ohio, United States and Xining, Qinghai, China:
Departure Airport:

Arrival Airport:

Distance from PMH to XNN:
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- About this route
- PMH Airport Information
- XNN Airport Information
- Facts about PMH
- Facts about XNN
- Map of Nearest Airports to PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
- Map of Nearest Airports to XNN
- List of Nearest Airports to XNN
- Map of Furthest Airports from XNN
- List of Furthest Airports from XNN
About this route:
A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Xining Caojiabao Airport (XNN), Xining, Qinghai, China would travel a Great Circle distance of 7,220 miles (or 11,620 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 Greater Portsmouth Regional Airport and Xining Caojiabao 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 Greater Portsmouth Regional Airport and Xining Caojiabao Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PMH / KPMH |
Airport Name: | Greater Portsmouth Regional Airport |
Location: | Portsmouth, Ohio, United States |
GPS Coordinates: | 38°50'26"N by 82°50'49"W |
Area Served: | Portsmouth, Ohio |
Operator/Owner: | Scioto County Airport Authority |
Airport Type: | Public |
Elevation: | 663 feet (202 meters) |
# of Runways: | 1 |
View all routes: | Routes from PMH |
More Information: | PMH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | XNN / ZLXN |
Airport Names: |
|
Location: | Xining, Qinghai, China |
GPS Coordinates: | 36°31'39"N by 102°2'34"E |
Area Served: | Xining and Haidong, Qinghai, China |
Operator/Owner: | China West Airport Group |
Elevation: | 7119 feet (2,170 meters) |
# of Runways: | 1 |
View all routes: | Routes from XNN |
More Information: | XNN Maps & Info |
Facts about Greater Portsmouth Regional Airport (PMH):
- The airport was constructed in the 1957 to replace another airport located in West Portsmouth, Ohio which was situated near the Ohio River.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth Regional 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 Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Xining Caojiabao Airport (XNN):
- Because of Xining Caojiabao Airport's high elevation of 7,119 feet, planes must typically fly at a faster airspeed in order to takeoff or land at XNN. Combined with a high temperature, this could make XNN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Xining Caojiabao Airport (XNN) is Carriel Sur International Airport (CCP), which is nearly antipodal to Xining Caojiabao Airport (meaning Xining Caojiabao Airport is almost on the exact opposite side of the Earth from Carriel Sur International Airport), and is located 12,165 miles (19,578 kilometers) away in Concepción, Bío Bío Region, Chile.
- The closest airport to Xining Caojiabao Airport (XNN) is Lanzhou Zhongchuan Airport (LHW), which is located 88 miles (141 kilometers) E of XNN.
- Xining Caojiabao Airport (XNN) currently has only 1 runway.
- In addition to being known as "Xining Caojiabao Airport", other names for XNN include "西宁曹家堡机场" and "Xīníng Cáojiābǎo Jīchǎng".
- Xining Caojiabao Airport handled 2,030,378 passengers last year.