I haven't flown delta but flew on Continental last week. My carrier was supposed to be only nine inches tall. i couldn't find one that short. Mine was 11 inches tall but had soft corners on top so it smooshed down nicely. i was allowed 18" length but mine was shorter than that. I would say if you have one that is nine inches high and is soft sides, you will be alright. Did you go to the Delta site? |