Originally Posted by
wolf
I'd consider Rockports. They aren't the best looking but are airport friendly (no metal shank), comfortable and last for a reasonably long time. Whatever you go with, if you're an FO make sure they have a decent grip. You don't want to fall on your a** doing the walk around in the snow...

That's why I own a pair of Sorel Mounty II
http://www.zappos.com/n/p/dp/18325276/c/3.html
Nevertheless, if you like boots like I do. Timberland Oppland Chelsea works perfectly for me.
Airport friendly nylon shank provides support, stability and shock dispersion and will not set off airport detectors.
Smart Comfort® system technology for all-day comfort and support.