I notice that delta and united have the strictist carry on requirements. 14X9X22 = 45.

Has anyone had any trouble with their rolling suitcase carrying it on? been checked?

All our suitcases that are supposedly those measurements are actually 14 1/2- 15, if you measure across the back where the wheels hook on.

curious if you have one that actually fits. thanks.

Most of my suitcases measure 9" x 21" x 14" and probably measure a bit more with the wheels as u say. I fly UA a lot and have never had a problem fitting any of these suitcases in the overhead or being asked not to carry it on.

have you had to measure any of your suitcases in that measuring bin they have by the gate?

I have seen bag sizers at some United gates (there was one at the gate from which I departed in Denver last weekend), but I haven't observed them being used. One exception--in Dallas a few weeks ago, there was someone stationed at a sizer at the entrance to the security line for the UA gates, and she was making everyone measure their rollaboards. I was on a day trip with only a computer bag, so I can't tell you if a 22" bag would have fit. I've carried a 22" bag on United many, many times. I've never had United measure it, but that bag did flunk US Airways' sizer recently in Las Vegas.

I just witnessed a carry-on bag being put into the sizer and then having to be checked. That was a couple of weeks ago at the Tampa airport, for a UA flight.

I've never seen people have trouble with this size in the US. The problem often arises in europe though - American tourists are able to bring that size wheelie on board here - but on either inter-european flights or return flights on european airlines - are forced to gate check them - since they measure with the wheels.

Also, I think it's partly a function of how full the flight is. If every seat is taken they may be stricter than if the fight isn't completely full.