I scheduled a round trip from Philadelpha, Pa to Denver, Co. After I arrived at the airpot gate, I saw that the flight had been cancelled. Talking to personnel behine the Fronteir desk offered another flight on Saturday, this was Tuesday,. even the flight attendents were unaware of the flight cancellation until they arrived at the gate. I contacted Frontier several times. They offered me a $100.00 voucher usable within 6 months only. Subsequent emails did nothing to change this. They cancelled the flight so I feel I should recive a full refund. Not a partial voucher.