Iran resumed commercial flights from Tehran’s international airport on Saturday for the first time since the conflict with the U.S. and Israel began about two months ago. Iran’s state-run television reported that flights took off from the Imam Khomeini International Airport in Tehran bound for Istanbul , Oman’s capital of Muscat and the Saudi city of Medina. Flightradar24, a flight tracking platform, showed that at least three Istanbul-bound flights departed Saturday morning. Iran partly reopened its airspace earlier this month amid a ceasefire with the U.S. which halted fighting between the two countries. THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below. ISLAMABAD (AP) — U.S. envoys are expected to travel to Pakistan on Saturday in a new bid to salvage ceasefire talks with Tehran, even as Iran ruled out direct negotiations with U.S. representatives as its top diplomat arrived in Islamabad.…