Nonstop flight route between Portland, Maine, United States and Xining, Qinghai, China:

About this route:

A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Xining Caojiabao Airport (XNN), Xining, Qinghai, China would travel a Great Circle distance of 6,877 miles (or 11,067 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 Portland International Jetport 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 Portland International Jetport and Xining Caojiabao Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Portland International Jetport (PWM):

• On September 1, 2005 Delta Air Lines ended mainline service to PWM.
• Boston-Maine Airways had a monopoly on passenger air travel at Portland, which continued after the airline was renamed Northeast Airlines.
• 1986 also brought US Airways, who began flights to Philadelphia and Pittsburgh.
• Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
• The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
• Portland International Jetport is a public airport two miles west of downtown Portland, in Cumberland County, Maine.
• In the wake of the September 11 attacks many U.S.
• The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
• Portland International Jetport (PWM) has 2 runways.
• In 2008 Delta Air Lines resumed mainline service to Portland, a daily flight to Atlanta on a McDonnell Douglas MD-88.
• Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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 Xining Caojiabao Airport (XNN):

• 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".
• 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.
• Xining Caojiabao Airport (XNN) currently has only 1 runway.
• The closest airport to Xining Caojiabao Airport (XNN) is Lanzhou Zhongchuan Airport (LHW), which is located 88 miles (141 kilometers) E of XNN.
• 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.
• Xining Caojiabao Airport handled 2,030,378 passengers last year.