How mobile-friendly is Allegiant Air?
There is an iOS app from Allegiant Air which will work on your iPhone, iPod, or 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.
If you're just looking for their mobile site, you can head on over to http://www.allegiantair.com on your mobile device.