App home screen

what is best practices when it comes to the app homescreen. I am designing a flight app and the home screen currently consists of the 1) Logo 2)Book a flight button 3) Manage booking button 4) A few destinations at the bottom

The airline however offer more than flight, they offer car hire, hotels and holiday destinations. Would it be advisable to add all of these things on the homescreen or will it clutter the design