Poland has already transferred the first batch of MiG-29 fighter jets to Ukraine, Marcin Przydacz, the Polish Presidential Office’s head of International Policy, told RMF 24 on April 3.

Przydacz didn’t specify how many jets had been delivered. Polish President Andrzej Duda said on March 16 that Warsaw would hand over the first four MiG-29 fighter jets to Ukraine within the coming days.

https://news.yahoo.com/official-poland-delivers-first-mig-093054110.html