If you purchased an eticket from their website and have to do a change or cancellation the fee is not a $100, provided you do the change yourself on the website as well. Last week I had a one way ticket from ewr to tus which I paid $165. I had to leave a day earlier. I accessed my reservation online and clicked on change res. I entered my new desired date of travel. A number of options came up and I chose one which priced out at $260. I was charged $95 plus a change fee of $30. I was impressed how simple it was.