No , a standard 22" rollaboard suitcase won't fit in a CRJ overhead bin.
In my experience, most airlines that fly the CRJ and similarly sized regional aircraft use a "gate check" system: luggage that is of "carry-on size" (i.e. would fit in a larger airliner's bin) but doesn't actually fit in the bin on the aircraft in use will be taken from you at the gate, put in the plane's cargo bin, and returned to you at the gate after landing.
You won't need to check it at the ticket counter or claim it at the carousel.
However, this means that priority boarding gains you nothing as far as carry-on space.
travel.stackexchange.com/users/1362/Nate Eldredge
As a CRJ200 pilot, I can tell you a 22” bag will fit.
However, the CRJ200 is very sensitive when it comes to weight and balance.
Due to the nose being heavy, all roller bags have to be gate checked and added to the cargo bin in the back to help balance the plane.
So, just get the size you need and gate check your carry-on.
You’ll be fine without it since CRJs are usually used for short flight, ranging from 20 minutes to 2 hours max.
travel.stackexchange.com/users/83365/Ahmed
It depends on the size of your rollerboard.
The overhead bin allows for a 52.5" × 14" × 9.5" bag, but, if memory serves, Delta makes passengers check all roll-aboards on the CRJ-200 since they reserve the overhead space for soft-sided bags and jackets.
Given that policy, the seat upgrade wouldn't give you any early boarding advantage so you should probably save your money and skip the upgrade.
They did gate check the roll-aboard though, so you probably won't have to to pay the checked bag fee or wait at baggage claim when you arrive.
travel.stackexchange.com/users/19548/Andrew Wade
No.
My backpack (that fits under the seat in front of me on a normal airliner) barely fits in the overhead bins on Delta's CRJs, let alone my rollaboard.
As others have said, they will collect such bags at the gate, put them in the cargo hold, and then return them to you in the jetway (or on the ramp if you're not using a jetway) as you get off the plane.
These aircraft are much smaller than a standard DC-9 or 737 class aircraft.
At 6'1", I have to duck the exit signs walking down the center aisle on these things.
Personally, I avoid them where feasible.
travel.stackexchange.com/users/12011/reirab
After a lot of inconclusive research on the same question, here is a photo of a Rimowa Salsa Deluxe business trolley in the overhead of a United Canadair CRJ-200.
photo by author photo by author
It fits -- just barely -- into the space, and the overhead lid just barely closes over it.
The dimensions of the Rimowa case are 16.1" x 16.1" x 8.1".
But those dimensions need to be adjusted for (1) the wheels which don't fit exactly through the opening
(they have to be carefully angled into it then the case slides in), and (2) the tiny bit of height clearance you see above the case.
So taking these factors into account, a more precise estimate would be: 7.5" high, and 15.5" deep for the United CRJ-200
There is plenty of room on length, as you can see, and you will note from the side-view that the key issue is the opening height, because the inner space is a little larger than the opening because of the ramp.
This takes into account the wheels, overhead clearance, and handle height for the Rimowa case.
I've traveled on CRJ's plenty with this case and have never been asked to check it in because it's a half-height.
For others considering the Rimowa approach, I also have the aluminum Topas Stealth Business Trolley
but I would not recommend using it on a CRJ:
it's slightly larger and unlikely to fit, and I have no desire to gate-check an anodized aluminum finish case.
travel.stackexchange.com/users/30408/tohster
I recently measured the overhead bins of the Embraer 145 and the CRJ 100 because I got tired of gate checking bags.
I found a bag that is 19" tall, 13" wide and 7" deep.
I took it on a 5 day trip recently on which I flew YVR-SFO-ORD-ICT-YQT-YYZ-YVR on several different small regionals including a Dash-8 100 and it fit into every bin-
no gate checks req'd.
travel.stackexchange.com/users/19785/Mark
I have found that regardless of bag size AA will not allow any roller bags.
They will gate check.
My computer bag is not small looking, but fits under the seat.
I have been with others whose bags are half the size of mine, but due to them having rollers, have been forced to gate check.
This is their policy and no measuring is considered.
travel.stackexchange.com/users/28166/B Nettleton
I would like to confirm B.Nettleton's answer, based on a flight on 11/5/2018.
However, the flight attendant was kind enough to let me take my 'squeezable' roller bag on board; it barely fit.
travel.stackexchange.com/users/86574/B.Gildemeister
Travel Pro Crew 5 and Luggage works bags fit on CRJ 200s and ERJ 135/145.
That is what most air crews carry on small regionals.
AA won’t let you bring them on, and UA sometimes will not let you bring them on though.
They will tell you they don’t fit, even though I have put my Luggage works bag in the overhead of hundreds of those planes.
travel.stackexchange.com/users/106161/user106161
I've got a flight coming up on a CRJ-200. I know this is a smaller plane — is there room in the overhead bin for a rollaboard? I usually prefer to fly with carry-on luggage, even paying the upgrade so that I can be sure to be first on the plane and more likely to get overhead bin space. I don't want to pay the extra money if there isn't space.
Is there room for a rollaboard in a CRJ-200 overhead bin?
travel.stackexchange.com
<air-travel><aircraft><hand-luggage>
travel.stackexchange.com/questions/35581
travel.stackexchange.com/users/19547/caribou.warbling
A 22” bag will fit, but not a rollaboard suitcase of that size. AA won’t let you bring any roller bags on, and UA sometimes will not let you bring them on. Only certain sizes of rollaboard bags will fit in the overhead bins on CRJ200 planes. One of these is TravelPro Crew 5. However, many airlines will not allow passengers to bring these bags onboard as hand luggage.
There is some debate about what size of rollaboard bag will fit in the overhead bin on a CRJ200. Travel Pro Crew 5 and Luggage works bags are used by cabin crew and they definitely fit.  Many airlines will not allow rollaboard bags as hand luggage on CRJ200 planes.