I would not attempt to bring matchlight on a plane. I'm pretty sure it has lighter fluid of some sort in it already. If a dog comes near your bag it is going to smell it And cause problems for you. It may delay the plane, evacuate the airport, who knows these days. In the very least you are going to miss your flight. Even if it doesn't happen now, that smell will remain in your bag. Next time you use it a dog may smell it even though its not in there.
One of the Disney cruises I went on the whole terminal was evacuated just as we were going to board the ship. A dog reacted to someone's bag. We had to wait outside for hours while it was investigated. It turns out someone put their bags down on their lawn while they were loading their car. Their lawn was just fertilized and the dog smelled the fertilizer.