Horrible, horrible on line experience with Frontier today. Tried to book reservation for 3 family members. Had to pay 2different prices. Extra charges for seats, carry on and checked baggage, Even extra for coffee. I called customer services and waited over 1 hour. The representative was rude. She finally agreed to give me a credit on my next flight. The voucher came and it was good for 3 months, no extension( are they serious). I will NEVER fly frontier, it used to be my favorite airlines but not anymore. Customer service SUCKS!