On longer flights, the best time to start planning for the arrival and approach is when things are quiet during cruise and while several hundred miles from the destination. The problem is you might not be able to receive the ATIS at this range, so there’s no way to confirm which runway or instrument approach is in use to begin preparing for the approach. Don’t give up there. With ADS-B In, some apps, such as ForeFlight, show the recommended runway based on the current winds. Some panel-mounted ADS-B units, such as L-3’s Lynx NGT-9000, offer live metars, which will also give you an indication of the runway in use.