A welcome new feature of iOS 13 is Driving ETA which helps you share your estimated time of arrival with a contact whenever you’re navigating with the Maps app.
To use Driving ETA;
- start navigating to a destination in Maps
- tap Share ETA at the bottom of the screen
- pick the person with whom you want to share your location and arrival time. (You’ll share in Maps with iOS 13 users and via Messages with everyone else.)
- The other person will receive a notification of your ETA and if you’re delayed updated times.
You do have to start navigation in Maps to use Driving ETA so it’s a little inconvenient when you already know the route but it’s a brilliant feature for long-distance trips.