I seriously doubt that they would try to send it by plane directly in Ukraine.
Most likely it will be either plane or trains up to the neighbouring country (Poland, Slovakia, Hungary, Romania and Moldavia) and then most likely put on Ukrainian trucks at the frontier.
The real question is how the Ukrainian will avoid those convoy being destroyed (at least the one containing military aid) from the air as soon as they cross the border.
I just hope they won't do something stupid and mix humanitarian and military aid into the same convoy.
Which is most likely forbidden under international laws, but since everybody seem to be taking liberties with them lately...
