Recently there have been calls for a no-fly zone, most insistently and daily from Ukraine's leadership, President Zelensky or his advisers and/or supporters. There are significant risks though, as you will find out upon reading the article below or remembering recent history.
https://www.grid.news/story/global/2022/03/09/what-is-a-no-fly-zone-why-ukraine-wants-one-and-why-nato-is-refusing/
from GRID:
Perhaps the political scientist Seva Gunitsky put it best when he wrote on Twitter recently, “the people calling for a no-fly zone should explicitly say they are willing to risk nuclear war and the people calling for backing off should explicitly say they are willing to tolerate war crimes. there is no moral high ground for anyone here.”- Seva Gunitsky, Political Scientist