"If we were meant to stay in one place, we'd have roots instead of feet, he said" -Rachel Wolchin
The best time to visit Ladakh by road is from mid-May to September as the Leh Manali Highway opens up via Rohtang Pass. Mid-September to mid-October is an amazing time to visit Leh and Ladakh as the place is permeated in flamboyance through the Srinagar-Leh as well as Manali-Leh roads.
But if you want to see live snowfall, the best time will be December and January. Most of the people rent a self-drive car or bike for this amazing road trip. So you are advised to travel by a self-drive car if you are in group of more than two. You can rent a self-drive car from Myles as they are available in 21+ cities. You can book a car from the website (mylescars). On the other hand, you are advised to rent a bike if you are going to travel with a friend.
I hope it will help you.
However, some adventure-loving tourists visit Ladakh even in September-October by air as the airport at Leh (Kushok Bakula Rimpochee Airport) remains open throughout the year.
Thoise airport is also used by high-ranking military officials.