Saint Petersburg Pulkovo, Minsk Intl 2, and Moscow Domodedovo are the top three Belavia airports based on our airline data. This may change if Belavia makes updates to their flight routes due to supply and demand.
Belavia does not have flights from Singapore Changi at the moment. There are scheduled flights with Belavia out of Tashkent Vostochny though (if you don’t mind flying from this airport). Flying with Uzbekistan Airways is recommended if you still want to fly from Singapore Changi.