Pakistan has fully reopened its airspace to civilian flights, nearly five months after it was closed following a standoff with India.
The closure forced international airlines to reroute around Pakistan and cost them tens of millions of dollars.
State-owned carrier Air India and other Indian airlines were the worst hit.
Pakistan shut its airspace in February after India carried out an airstrike against what it said was a terrorist training camp in Pakistani territory.
The attack in Balakot was in retaliation for a suicide bombing in Indian-administered Kashmir that killed more than 40 Indian soldiers and was claimed by a Pakistan-based militant group.
Pakistan responded by shooting down an Indian fighter jet. The aerial attacks brought the countries to the brink of war.