All cigar smokers have this experience. The most difficult problem to solve when going out is the source of fire. Many places do not have dedicated cigar lighters or cigar matches. This problem can be solved with self-contained pine bars.
There are various cigar cutters, some of which can be carried with you and others that need to be checked in advance. Personal experience is for reference only.
1.Double edge/single edge/V-shape cigar cutter
These three are a class of cigar cutters, all with sliding blades. Both are commonly used cigar cutters, and all airport security personnel generally let them pass.