If I get a travel pass for zones 1-2 or zones 1-3 but am going to Versailles or returning to CDG, do I in fact buy a pass for the zones outside my pass? Maybe the cost is inconsequential so it won't matter, but please advise. Thanks!
CDG and Versailles are in zone 5; there's no need to buy a five-zone pass for your entire Paris stay. Just buy the pass for 1,2 then buy individual RER tickets to Versailles and CDG. Bon Voyage!
Versailles is in zone 4, not zone 5. A single ticket from central Paris to Versailles costs 3.05 EUR. A single ticket from central Paris to CDG costs 8.70 EUR.
You're a real hair splitter Tim! Thank you! However, I really do believe you got the point.