Online check - in
This app is disgraceful and the airline should be ashamed of it! It is impossible to check-in online and so now I have to queue at the airport with everyone else even though I have no bags to check in. Based on the performance of this app I will never fly with this airline again. Lazy people who cannot be bothered to address the known faults. I’m worried they may have the same philosophy in looking after the maintenance of their aeroplanes? Who knows? Fix your problems “ALLEGIANT Airlines”!