We are going on the RS Village Italy tour in April 2019. The tour starts near Venice and ends near Milan, so originally I was looking for flights from the US to Italy. We have Delta miles through our AMEX card, but not enough to obtain two tickets. The AMEX card offers a pay with miles option which allows for the application of available miles to the cost of the tickets at a rate of $0.01 per mile. The catch is that the pay with miles option can only be used for Delta operated flights (not when all are some of the the legs are on partner airlines - e.g. Air France, Alitalia, KLM). Furthermore, you need to have 15,000 miles in your Skymiles account in order to use the pay with miles option. I booked non-stop flights for from Boston to Paris leaving April 17th and returning on May 7th at a net cost of $146 a ticket including the application of 70,000 miles. The full cash price of this ticket is $492 (including checked baggage and seat selection).
We can easily fly from Paris to/from Italy to accommodate the tour dates.