Now a days every season is a good season. Your questions is obviously about the best time based on weather and other amenities for the tour. Ladakh is best in May – Sept every year. You can visit via road from Manali, and Jammu or via Flights direct to Leh.

The best time to visit Ladakh is from June to Sept of every year. During this time Leh and Ldakh is open fully and you can go by road from Manali as well as Jammu Kashmir side. Also during this time you have the best weather and natural beauty expereince of Ladakh.