Many of us are, most of the time, choosing planes flights as our mode of transportation, mostly when we are traveling abroad. Holidays, visiting colleagues and families, some people even works in another countries. We have plenty of alternatives in carriers, we can always find the cheapest ticket in our date and buy it. But the problem is not only with finding correct flight. Also, we must to get ready to our journey, and beaware of many regulations about flying by plane. Different thing is luggage, at the very first moment we are booking our tickets, we have to select kind of it.