Generally speaking, at this time, most U.S. airlines’ allowable size for carry-on bags is a maximum size of 22″ x 9″ x 14″. On our site, we have indicated which of our larger products comply with this size restriction with our “Carry-On Compatible” logo. International airlines’ carry-on limits can be more or less restrictive. Please be aware that there is no carry-on size uniformity among the airlines and that the airlines’ own guidelines may frequently change. Since most airlines set their own rules, you should confirm your particular airline’s policy prior to travel.