The easiest way to get home is by plane - nobody's gonna argue. But that is not our way, because of the high cost.

Next variant - train. Actually, it is just the trailer car to the train Warsaw - Uzhgorod. But still there are two disadvantages of it:

1) time - it takes 35 hours to get home - it stays 4-5 on the border to change the wheels and it goes through Kiev  

2) once again, cost - approximately $100 but you still have to  ask from ticket office.

And the last one, which I'm always using, is :

- bus from Warsaw to Lviv, which costs nowadays 90 zloty, and after

- train from Lwow to Odessa, where prices are around 40 zloty per ticket

This way seems to be the cheapest and fastest for me.