In general, when booking your flight to Kigali, September is the cheapest month on average.
Most flyers found that booking flight tickets 54 days in advance of their planned departure date is, on average, the best time to get cheap flights to Kigali.
From most locations, the cheapest flights to Kigali are found on a Wednesday. Booking a Friday departure is usually the most expensive.
On average you can find the best deals on plane tickets to Kigali when looking for flights with noon departure times.