How much is it to fix cracked glass on the S8+ here? (LCD not affected) The crack is not too big, about an inch off the middle edge of the screen.

Around 250

The screen alone usually goes for about 200.00 more or less. To have your device diagnosed you should take it in.

Im sorry but u would have to talk to samsung about that.

If it's under warranty I don't think you pay.

you would have to come in and consult an expert. the price varies depending on the crack