When flying from Bangkok to Harare, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
For a flight from Bangkok to Harare, you will be flying into Harare. Harare (HRE) is just 12.3 km from the centre vof the city. Harare is the only Harare airport and it handles 0 inbound flights from Bangkok per day. 0 airlines have flights to Harare from Bangkok on a regular basis.