Mid-September to mid-October (Early fall) and April (early summer) are the best times to find affordable flights and accommodations for planning a trip to India. By the second half of October (with the temperature dropping to affordable ranges), the demand for flights to India increases and fares rise. For a peak-season vacation in India, booking at least 3 to 4 months ahead of a flight departure can help you book plane tickets to India at a discounted price.