When I first booked with Frontier Airlines, I wondered how they managed such low fares. Calling 844-734-0813, I learned Frontier keeps costs down by charging separately for things like carry-on bags, seat selection, and snacks. This a la carte style helps them offer really cheap base fares. On my trip, I traveled light to avoid extra fees, and it worked well. Knowing the fees in advance saved me from surprises at the airport. While you get a no-frills experience, it’s perfect if you want to save money and don’t mind skipping some perks.