Bost Airport is located on the east bank of the Helmand River

Helmand River

The Helmand River is the longest river in Afghanistan and the primarily watershed for the endorheic Sistan Basin....

 in Afghanistan

Afghanistan

Afghanistan , officially the Islamic Republic of Afghanistan, is a landlocked country located in the centre of Asia, forming South Asia, Central Asia and the Middle East. With a population of about 29 million, it has an area of , making it the 42nd most populous and 41st largest nation in the world...

, 5 miles (8 km) north of the junction of the Helmand and Arghandab

Arghandab River

Arghandab is a river in Afghanistan, about in length. It rises in the Hazarajat country north-west of Ghazni, and flows south-west falls into the Helmand below Girishk. In its lower course it is much used for irrigation, and the valley is cultivated and populous; yet the water is said to be...

 rivers. The Airport was established in 1957 with the assistance of the United States. In 2008, a large project commenced to rehabilitate the current airport as well as to create an industrial and agricultural park. The overall budget of this project was US$52 million donated by USAID. On 4 June 2009, the new runway and terminal were inaugurated by a delegation of high government officials and the ambassadors of the US and the UK. The new asphalt runway is 2,300m long and 43m wide which makes it the third longest runway in Afghanstan. Currently Ariana Afghan Airlines

Ariana Afghan Airlines

Ariana Afghan Airlines Co. Ltd. is the oldest and the national airline of Afghanistan, and is currently the largest Afghan airline, headquartered in Kabul...

 has regular flights between Lashkar Gah and other cities.