Under U.S. authorities guidelines, smoking is prohibited on all scheduled-service flights of U.S. airlines. As a basic matter, international airways should additionally ban smoking on all scheduled-service flight segments in, to and from the United States. Cigar and pipe smoking is banned on all U.S.-carrier flights . If your suitcase arrives smashed or torn, the airline will usually pay for repairs. If it could’t be mounted, they will negotiate a settlement to pay you its depreciated value.