Total nonsense , Krakow isn't within 3 hours of Warsaw on a train for a start(I've done it ) , neither is Lublin . You need to stay the night of the game then travel the next day back to Warsaw , many flights are quite early so there's that . Fly in the day before you may have to wait till the following day ie match day to get a train which isn't what you want either . As I said , it's great if you have plenty time before and after but not everyone has