I booked a hotel with Allegiant. I wanted to cancel it about 48 hours before but was then notified that I had to give 72 hours notice. Even if I cancelled my flight I could not cancel the motel.
Please note the following:
1.The discount they claim for booking a motel through their site is no discount. It is generally the same price if you book directly with the motel.
2.If you book directly with the motel you usallly have up until 24 hours to cancel.
There is simply no advantage to book a motel with allegiant that I can see.