Originally Posted by
tfar
That is simply a matter of whether it fits under the seat in front of you. And maybe of weight restrictions as pertaining to the sum of your cabin luggage.
Till
Not quite true. I can't find the link to the list I saw it on, but here is an example:
http://www.aircanada.com/us/en/trave..._services.html
I bet plenty of rolling briefcases are more than 6 inches deep.