It has just been mentioned to me that if our family of 5 are each taking a carry on case, we may find that there is no room for all of our bags in the overhead compartments. All of our hand luggage fits within the size requirements. We are flying Jetstar and I don't believe we are on a Dreamliner (not sure if that matters or not). Is it likely that we will have trouble? I was hoping to get the most out of our luggage allowance but now I am a bit worried.
Thanks in advance.