Nonstop flight route between Houston, Texas, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between William P. Hobby Airport (HOU), Houston, Texas, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 6,104 miles (or 9,824 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 William P. Hobby Airport and Sofia Airport Vrazhdebna, 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 William P. Hobby Airport and Sofia Airport Vrazhdebna. 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 William P. Hobby Airport (HOU):

• Because of William P. Hobby Airport's relatively low elevation of 46 feet, planes can take off or land at William P. Hobby 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.
• TranStar Airlines corporate headquarters were at the airport.
• Houston is a focus city for Southwest Airlines, and was the seventh-largest city in Southwest's network as of 2013.
• In addition to being known as "William P. Hobby Airport", another name for HOU is "Houston Hobby".
• The furthest airport from William P. Hobby Airport (HOU) is Cocos (Keeling) Island Airport (CCK), which is located 11,002 miles (17,706 kilometers) away in Cocos Islands, Australia.
• In 1950 Pan Am started a DC-4 nonstop to Mexico City.
• William P. Hobby Airport handled 9,054,001 passengers last year.
• Developments at Hobby in the 2000s include a new concourse to serve Southwest Airlines, designed by Leo A Daly and the upgrade of Runway 4/22.
• William P. Hobby Airport (HOU) has 4 runways.
• George Bush Intercontinental Airport opened in 1969 because of expansion limitations at Hobby, and all airlines at Hobby moved there.
• United Airlines, Houston's other major carrier, which would subsequently be forced to compete with Southwest on proposed international routes, has objected to the expansion plans, citing a study which concludes that the change would cost the Houston area jobs and result in a net reduction in GRP.
• The closest airport to William P. Hobby Airport (HOU) is Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), which is located only 8 miles (12 kilometers) ESE of HOU.

Facts about Sofia Airport Vrazhdebna (SOF):

• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• The new tower is an extremely important facility for both ATC and the airport because it is related to the safety and security of flights, explained by the transport department.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• The furthest airport from Sofia Airport Vrazhdebna (SOF) is Chatham Islands (CHT), which is located 11,437 miles (18,405 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Options for different airport developments began to be examined in the mid-1960s.
• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.
• The new tower was officially opened on 7 December 2012.
• The project for the construction of a new airport control tower at Sofia Airport commenced on 16 June 2006 with a decision of the BULATSA Management Board.