Call us at this toll-free number: 1-888-595-2181 to get information about what are the difference between frontier and delta. It is quite eminent that every flight should be the most comfortable, and at the same time, if it is affordable, then your trip will be all the more memorable. There are numerous airlines to choose from for your next trip, and often you can get puzzled as to which one to select. This page describes the amenities and services offered by Frontier and Delta Airlines so that your options narrow down a bit and you can choose one of the most renowned airlines in the market.