Follow these steps to share your ETA from your iOS device: 1. Open the Maps app, then choose your destination. 2. Select Directions, your traveling method, then Go. 3. Once the route has started, the Share ETA button may be available at the bottom of the screen. 4. Otherwise, press the footer displaying the arrival time, then Share ETA. 5. Next, either choose one of the contacts iOS thinks you’re most likely to want to share with or tap Contacts. 6. After you’ve selected the person you want, your ETA will be sent to them.