Flight Simulator download size and specs at a glance.Regardless of your set up, knowing the Flight Simulator download size ahead of time can help you clear out your hard drive in time, helping ensure it installs with as few issues as possible. Flight Simulator is Microsoft's 2020 take on its long-running airborne sim series.Īvailable on Xbox Game Pass for PC owners, it's cheaper than ever to access - but you need to make sure your PC meets the minimum specs to run it.