Airlines are avoiding Iranian and Lebanese airspace and cancelling flights to Israel and Lebanon, as concerns grow over a possible war in the region after the killing of senior members of Hamas and Hezbollah this week. Singapore Airlines stopped flying through Iranian airspace from early on Friday morning and is using alternative routes, saying safety is its top priority, it told Reuters in a statement. Taiwan’s EVA Air and China Airlines also appeared to be avoiding Iran airspace for flights to Amsterdam on Friday which previously had flown over Iran, Flightradar24 data showed. The airlines d…