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

About this route:

A direct, nonstop flight between Valley International Airport (HRL), Harlingen, Texas, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 6,379 miles (or 10,266 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 Valley International 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 Valley International 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 Valley International Airport (HRL):

• On April 2, 2012, a United Airlines, Flight 4128, made an emergency landing at Corpus Christi due to unknown reason when it suffered damage to its front landing gear and also experienced a flat tire.
• The closest airport to Valley International Airport (HRL) is Brownsville/South Padre Island International Airport (BRO), which is located 26 miles (42 kilometers) SSE of HRL.
• Valley International Airport (HRL) has 3 runways.
• Because of Valley International Airport's relatively low elevation of 36 feet, planes can take off or land at Valley 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.
• Valley International Airport covers 2,428 acres at an elevation of 36 feet.
• After the airport's closure by the military, it was turned over to the local government and converted to civil use as Valley International Airport after Hurricane Beulah flooded the original Harlingen civil airport in 1967.
• The furthest airport from Valley International Airport (HRL) is Sir Gaëtan Duval Airport (RRG), which is located 11,151 miles (17,946 kilometers) away in Rodrigues Island, Mauritius.

Facts about Sofia Airport Vrazhdebna (SOF):

• According to the plan a new Sofia airport terminal was built to the east of the old terminal and a second runway was constructed alongside the existing one.
• Options for different airport developments began to be examined in the mid-1960s.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• 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.
• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.
• 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 was officially opened on 7 December 2012.
• 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.
• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.