Just how large a bag can you bring on-board a Delta jet? Officially, per Delta.com, it tells us that your bag needs to be 22x14x9 (“ish”). Now we know that unofficially you could just about bring a ships steamer truck to the gate at least if you can get it past TSA (as TSA does not really care about your bag size as long as it can fit in a scanner). Sometimes you must get past the hired non-airline “goons” that act as gate keepers of bag sizes about to be brought on-board.
Having said that, if you run into the later, having a bag that will fit into the Delta size checker or the old size wise box is a must as then you are good to go and can tell the goons to go pound sand.
But just what are the true dimensions of these boxes? Are they really spot on what Delta tells us they are?
They are in fact just a little bigger than advertised as you can tell by these tests with a tape. The real size is much closer to 23x14x10 (the 14 being a line of paint on the unit so I think you could even fudge a bit there and end up OK with 23x15x10 but note the 10 is really more like 9.9!
So when looking at that perfect travel bag, know you have just a little bit of wiggle room of just what will fit into the tester. After this, the best way to avoid checked bag fees is simply to hold a Delta AMEX card(<-LINK) that can get you up to 9 bags FREE each time you fly! – René