Nonstop flight route between Washington, D.C. / Virginia, United States and Betou, Republic of the Congo:

About this route:

A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Bétou Airport (BTB), Betou, Republic of the Congo would travel a Great Circle distance of 6,405 miles (or 10,308 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 Bétou 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 Bétou 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 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.
• In September 2009, a 121,700 square feet central Transportation Security Administration checkpoint was added on a new security mezzanine level of the main terminal.
• Washington Dulles Airport is the busiest airport in the Washington metropolitan area, and second busiest airport in the larger Baltimore–Washington metropolitan area with over 22 million passengers a year.
• 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.
• By the 1980s, the original design, which had mobile lounges meet each plane, was no longer well-suited to Dulles' role as a hub airport.
• Washington Dulles International Airport (IAD) has 5 runways.
• The Metropolitan Washington Airports Authority has begun to gradually phase out the mobile lounge system for inter-terminal passenger movements in favor of the AeroTrain, an underground people mover which currently operates to Concourses A, B and C, and a pedestrian walkway system.
• The civil engineering firm Ammann and Whitney was named lead contractor.
• 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 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.

Facts about Bétou Airport (BTB):

• The furthest airport from Bétou Airport (BTB) is Cassidy International Airport (CXI), which is located 11,986 miles (19,290 kilometers) away in Christmas Island, Kiribati.
• The closest airport to Bétou Airport (BTB) is Bangui M'Poko International Airport (BGF), which is located 93 miles (150 kilometers) N of BTB.