Originally Posted by
kochleffel
As a carry-on or as a checked bag?
If it measures 29 inches in the longest dimension, it will not be allowed as a carry-on. The maximum is usually 21 or 22 inches.
For a carry-on bag outside North America, you would also have to consider weight limits. Many airlines limit the carry-on weight to 7 or 8 kg and it would be very, very easy to fill a 29-inch bag to be heavier than that.
Easily allowed as a checked bag.
Actually it is likely to be on the very limits of checked bag measurements which, for a lot of airlines, is linear 158cm / 62", so length + width + depth. At 29" (assuming accurate measurements, a lot measure 29.5") it means that your width and depth have total no more than 33 inches. So assuming a width of around 19" (fairly standard) that means the depth can only be 14" which is cutting it quite fine, and almost certainly wouldn't allow for any of the suitcases with expansion zippers (if expanded). My 29" is on the very very limits (unexpanded) and has been measured by airlines. I have since purchased a 24" to avoid the hassle.