Models on a Plane - How Does it Work?

On Friday I will be boarding a plane to head down to Baltimore for Games Day. Currently I'm planning to take my Sabol Army Transport as my carry on but as it gets closer to Friday I'm starting to have doubts.

I'm sure there are plenty of folks out in the blogosphere who have traveled with their armies on planes to tournaments and whatnot and I'd like to hear about your experiences. Have you had really good experiences, really bad ones? Are there any tips or tricks to flying with minis? Is there anything I should know?

I'd really appreciate any kind of advice that anyone has to share.

Thanks in advance!