We are planning to travel from Paris to Milan on June 3rd. We were originally going to travel from Paris directly to Rome, but with the landslide that is impacting train travel on this route, we decided to overnight in Milan, and then continue to Rome the next day. I’ve seen that by the time we travel, there will be a 'direct' route that includes a bus, but we'd prefer to travel by train the entire route.
We’ve seen the recommendation on this site to travel from Paris to Zurich and then Zurich to Milan. We want the fastest route, and since it’s a special vacation, are happy to reserve and pay for business class.
My question: when I try to book this route, it doesn't appear that all of the trains are available to book yet - is this correct?
We are trying to balance booking early enough to get the seats and timing we’d like, but fear booking too early and missing more desirable trains that may not be scheduled yet. We had heard that booking 4-6 months out would be ideal, is this correct?
Any suggestions and advice is most appreciated! Thank you.