Take a flight from Kyiv to Prague (PS 807)
and back from Prague to Kyiv (PS 808) on Monday, Wednesday, Friday (from December 14th)
Here you can book convenient direct and connecting flights from Ukraine (Kyiv, Kharkiv, Odesa, Dnipro, Lviv, Kherson, Mykolyiiv) to Prague
Before booking, be sure to check the link and find out the current entry rules for the destination country.