Sources: 

Iran resumed commercial flights from Tehran's Imam Khomeini International Airport on Saturday, reviving international air travel for the first time since the conflict with the US and Israel began on February 28. The resumption of flights comes as a result of a fragile ceasefire.
According to
state television, initial flights included routes to
Istanbul, Muscat, and
Medina, indicating a cautious reopening of the airspace that had been severely restricted during the two-month conflict. The
US-Israel war had forced a complete shutdown of Iran's commercial flight operations, significantly impacting the country's connectivity.
The earlier reopening of airspace this month marked a turning point in ongoing diplomatic efforts to stabilize relations. An announcement from Iran's semiofficial Mehr news agency confirmed that commercial flights were set to resume, aligning with a ceasefire in hostilities.
Flight tracking platform Flightradar24 reported that at least three flights to Istanbul had already departed on Saturday morning, signifying the cautious re-engagement with international air travel. This development highlights the ongoing shifts in Middle Eastern geopolitics as Iran navigates turbulent waters during this ceasefire phase.
Overall, the resumption reflects a fragile peace that may be pivotal for future diplomatic discussions, particularly considering the heightened tensions with both the US and Israel.
Sources: 

Iran resumed international commercial flights from Tehran's Imam Khomeini International Airport on Saturday, marking the first such operations since the onset of the US-Israel conflict approximately two months ago. Flights to Istanbul, Muscat, and Medina were among the first to restart following a ceasefire announcement.