I just tried checking in for a flight from LGA later today and got the following message: The Web Check-In Application is unavailable at this time. I was a little concerned because I got caught up in the UA fiasco yesterday morning (solved the problem by walking over to Delta!) and I wanted to make sure that lack of web check-in wasn't an indicator of a bigger problem. Called the SE line, got through in one ring and the CSR checked me in right away. She was unable to get me an electronic boarding pass (or PDF) for that matter though.