DH flew to miami today with his BIL for a football golf man's weekend. They flew Spirit and DH had carry on bag that I took on a United flight with no problem. When they got to the gate DH's bag was too big by an inch- $100 fee please. The gate agent told him there is no time to do anything else he could pay or leave the bag at the airport. DH had a not so nice word to say that almost got him barred from the flight! He is now $100 poorer and will be checking that bag online for the return home. It's a live and learn lesson so Spririt travelers beware!