Well I was disappointed to discover that I couldn't do web or mobile check in at PIT, but assumed I could use a kiosk. I now see that there are no check-in kiosks at PIT. So what I want to know is when do the desks open? I have a 7 am flight and was planning to get there at 5 am but there seems little point if the check-in desk doesn't open until, say, 5.30am.