This June we will be staying at a suburban airbnb (outside zones 1 & 2) and will go to Versailles from there. The trip planner says we should take the T2 and then bus 171 (the whole trip is outside zones 1 & 2). I understand the transfer between T2 and 171 will require to pay for each trip, since there are no free transfers between trams and buses.
My question is, do t+ tickets work on suburban routes? If the answer is yes, I understand that we will each need 2 tickets for our trip. Am I missing something? Thank you.