The download of the app doesn't contain viruses or any kind of malware. Appay Limited is the developer of Flight Search that can be found in the Travel & Local category. The overall score for the tool is 4.3 on Google Play.
The most recent update was on Feb 22, 2016 and this application was downloaded and installed by over 10K users. It's free of charge to get the installer of Flight Search, also, you can check out users' reviews on Droid Informer. The app works fine on Android 3.0 and above.