Last Saturday Ferihegy Airport had to be closed down for some hours due to heavy snow and bad weather in Budapest. Starting from this evening heavy snow and cold weather is again expected in Budapest and all of Hungary, so it might be that things will be delayed tomorrow. The weather is expected to last until Sunday evening.
In addition there will probably be lots of snow everywhere, so tomorrow might be a day to spend in a day spa or somewhere else.
Enjoy life and enjoy Budapest in any case!