What you need to know about United Airlines mobile apps
United Airlines provides an iOS app that is compatible with iPhone, iPod, and iPad.
As a member of United Airlines MileagePlus (and we always recommend joining loyalty programs, you can use the app to manage your account, view upcoming reservations, and more.
United Airlines has an Android app that works with most Android tablets, phones, and some Android Wear devices. As is often the case, the Android app offers the same functionality as the iOS app.
Also take a look at United Airlines's website by clicking here — you should be able to do what you need there.