He said this in an interview with Ukrinform.
"I believe that the creation of such a coalition is a matter of time. As allies, we must come to such a decision together," the minister said.
"Poland is ready to transfer its MiG-29 fighters to Ukraine as part of an international coalition... There is complete unity between the President and the Polish government on this issue. We are constantly working on a solution that will satisfy all parties," Blaszczak added.
Earlier, Polish Prime Minister Mateusz Morawiecki said that Ukraine could receive Polish MiG-29s within 4-6 weeks.
Slovakia is also considering the transfer of MiG aircraft to Ukraine, but the decision has yet to be made by its parliament.