This is the closest hotel to Belgrade Airport. It is a small boutique hotel I have stayed in several times and highly recommend.
It is quiet, locally owned, friendly staff and extremely clean. You'll get a good night's sleep.
Traveloka Sdn Bhd (No. Pendaftaran 201501003122), Tingkat 14 Menara 2, Menara Kembar Bank Rakyat, 33 Jalan Rakyat Brickfields, 50470 Kuala Lumpur, Malaysia