Saint Petersburg Pulkovo, Naryan-Mar, and Moscow Vnukovo are the top three RusLine airports based on our airline data. This may change if RusLine makes updates to their flight routes due to supply and demand.
RusLine does not have flights from Singapore Changi at the moment. There are scheduled flights with RusLine out of Ekaterinburg though (if you don’t mind flying from this airport). Flying with Pobeda is recommended if you still want to fly from Singapore Changi.