Originally Posted by
⌐ AV8OR WANNABE
Mine is 22" and many times I can barely squeeze it into the overhead bin. ...and no, I don't have to sit on it in order to close it.
PS. - RJs are actually the best to ride on when it comes to carry-ons as the bag always ends up in the belly meaning I don't have to load it up myself. B737, A320 and MDs in particular are a very different story...
It fits in sideways.
On a full fight it can be hard to get enough overhead space for it, if you don't get on first. Then I usually get a "gate check" ticket (if I'm on mainline) or see if the FAs can stash it in the closet.