Can anyone recommend the best way to get to Lancut from Rzeszow without our own car? Train, bus???
Trains run directly and take 15 minutes or less. Buy tickets locally.
Looking Up Train Schedules and Routes Online gives you the Deutsche Bahn train schedule link and tips for using it.
You can also use the train planner of the Polish railways, PKP. To avoid confusion I'd advise you to write down the details of the trains you want to use (date, hour, train number). It is always very much appreciated by the staff, which might not speak English. With buying the tickets the evening before you avoid the risk of missing your intended train in case there is a long queue at the ticket window.