Nonstop flight route between Washington, D.C. / Virginia, United States and Xi'an, Shaanxi, China:
Departure Airport:

Arrival Airport:

Distance from IAD to SIA:
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- About this route
- IAD Airport Information
- SIA Airport Information
- Facts about IAD
- Facts about SIA
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
- Map of Nearest Airports to SIA
- List of Nearest Airports to SIA
- Map of Furthest Airports from SIA
- List of Furthest Airports from SIA
About this route:
A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Xi'an Xiguan Airport (SIA), Xi'an, Shaanxi, China would travel a Great Circle distance of 7,353 miles (or 11,834 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 Washington Dulles International Airport and Xi'an Xiguan 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 Washington Dulles International Airport and Xi'an Xiguan Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | IAD / KIAD |
Airport Name: | Washington Dulles International Airport |
Location: | Washington, D.C. / Virginia, United States |
GPS Coordinates: | 38°56'39"N by 77°27'20"W |
Area Served: | Washington metropolitan area |
Airport Type: | Public |
Elevation: | 313 feet (95 meters) |
# of Runways: | 5 |
View all routes: | Routes from IAD |
More Information: | IAD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SIA / ZLSN |
Airport Names: |
|
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 |
Facts about Washington Dulles International Airport (IAD):
- Passengers connecting to the Shenandoah Valley can use the Shenandoah Valley Commuter Bus, which connects to the Vienna and Rosslyn Metro station.
- Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles International 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 closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
- The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
- Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.
- A new train system, dubbed AeroTrain and developed by Mitsubishi, began in 2010 to transport passengers between the concourses and the main terminal.
- Washington Dulles International Airport is a public airport in Dulles, Virginia, 26 miles west of downtown Washington, D.C.
- Washington Dulles International Airport (IAD) has 5 runways.
Facts about Xi'an Xiguan Airport (SIA):
- 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.
- 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].
- 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".
- Xi'an Xiguan Airport (SIA) currently has only 1 runway.