Checking in online for this flight was a joke. No contact from Frontier or Orbitz that I needed to check in. I had to find the info and do it, and was charged for choosing seats. Then, was almost forced into paying $48 for a carry on bag. I checked in at the counter and they said "oh you didnt have to pay for your seats" after I already had. And they would not reemburse me for the costs. They also said, oh your bags are fine you dont have to pay for carry ons. I even received an email before the flight saying you havent checked any carry ons. you need to do that. I will never fly this airline again.