Anywhere from $150 to over $2,000 per person per night. The useful answer is understanding what drives the range: the three pricing tiers, what each one includes, the costs nobody mentions until the invoice arrives, and why South Africa outperforms on value.
June to September for the most reliable game viewing, November to March for value and birdlife, and May and early October for the shrewd in-between. The full month-by-month picture, including what each season means if you are sleeping under canvas.
The dry season is the industry default, and for a first safari it is usually right. But the green season is not a compromise for people who could not afford July. Here is the honest comparison, round by round.