How to share a Wi-Fi password in iOS 17
If you don’t want to use the QR code method or haven’t updated to iOS 18 yet, you can also share a Wi-Fi password by unlocking your phone and waiting for your guest to tap on the network. If you both have iPhones, you should receive a request to share the Wi-Fi password. Tap Share Password to allow your guest to connect to the network.
How to find a Wi-Fi password on your phone
If you can’t remember a password and prefer to share it manually, you can do so by opening the Passwords app, tapping W-Fi, selecting the Wi-Fi network and tapping the Password field to reveal it. You can also copy and paste this password into a message.