Vistara, a joint venture between Tata Sons and Singapore Airlines, is considering starting direct flights to the US as the covid-19 pandemic increases demand for non-stop travel, a senior executive said on Friday.While the specific time frame and aircraft requirements are yet to be finalized, Vistara is studying various scenarios for direct flights, Vinod Kannan, chief commercial officer, told Reuters in an interview.Vistara has seen a rise in demand for non-stop flights, as passengers try to avoid stopovers to reduce the risk of getting infected—a trend it expects will continue in the future.Flag carrier Air India is the only Indian airline currently offering direct flights to the US.“This means there is definitely an opportunity...to fly.