The best time to travel from Delhi to Spiti Valley depends on your preferred route and travel style. The Shimla route is accessible almost all year, making it ideal for winter trips where you can witness snow-covered landscapes. However, the Manali route opens only between June and October due to heavy snowfall at Rohtang and Kunzum Pass. Summer months offer pleasant weather, blooming valleys, and open roads to high-altitude villages. Monsoons bring occasional landslides, so caution is needed. Winter travel requires proper winter gear, snow chains, and experienced drivers. Always check weather forecasts and keep buffer days. With the right preparation, each season in Spiti offers its own magical charm.