There's a thread on the UA board about how the security line always has hundreds of people in it and can take a couple of hours to clear. I'm flying out of LAS on Saturday evening around 6:30 pm, and am wondering if I really need to get to the airport at 3:30 to get through the lines. If so, I'm going to be mightily annoyed!! If it makes a difference, I'm flying DL.

Thanks!