I'm going to take the local train S3 from Warsaw Central rail station to Chopin airport.
I have some question on the ticket procedure. According to Internet, the trip takes ca 20min.
- Is a normal 20min ticket enough, from the machines?
I read that I have to validate the ticket.
2.1 Is it possible to do this inside train?
2.2 If not, after validating the ticket outside the train, I think 20min is not enough anymore, since I validate it before train arrives.
2.3 So, how to procedure?