The best autumn foliage in Zhangjiajie typically peaks from late October to early November, when red leaves cover the mountains most vibrantly. October 31–November 3 falls at the end of the peak period, still offering stunning views of layered forests in rich hues. By November 15–18, some leaves may start to fall, though high-altitude areas like Tianmen Mountain may still retain colorful foliage. Prioritize the earlier timeframe.