Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Qatar to Bujumbura as you normally would.
For a flight from Qatar to Bujumbura, you will be flying into Bujumbura. Bujumbura (BJM) is just 8.2 km from the centre of the city.
The Qatar to Bujumbura flight path was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.