I'm considering a trip to Egypt and would be flying out of JFK directly to Cairo on Egypt Air, it states on their site that your allowed one carry on that cannot weigh more than 17 lbs. but it does not state the dimensions. Has anyone flown on Egypt Air and if so can you tell me what size of bag were you allowed to carry on with?
It will be somewhere on their web site. Second, I would not trust any response here because bag sizes are a moving target.
Good luck trying to figure this out. The rules vary depending on where you are flying.