The latest info on Allegiant Air mobile apps

Allegiant Air provides an iOS app that is compatible with iPhone, iPod, and iPad. The Android apps from Allegiant Air work with all Android phones and tablets from various manufacturers (Samsung, LG, Google, etc.), and Android Wear watches might also be compatible. As is often the case, the Android app offers the same functionality as the iOS app.

Also take a look at Allegiant Air's website by clicking here — you should be able to do what you need there.