This is like trying to predict upgrade or the weather. All we can tell you is what it is now, but as soon as there's a slow down in the economy, or fuel goes up...you get the picture.

Here at XJT, it looks like ORD is about a year; EWR, CLE, and IAH are all hanging in there at about the 3 year mark. All subject to change as we see movement go up or down.

For f/o's ORD is the most junior, and IAH the most senior. Good luck.