For cooler weather in Bangladesh and more comfortable sightseeing, November through February is often the best time to fly to Dhaka. However, if you must travel in May, book 6–10 weeks ahead and avoid peak holiday weekends to get reasonable fares. May is acceptable for business travel but expect hotter weather on arrival.
May signals hotter, humid days and the approach of monsoon—pack accordingly and consider evening arrival windows to avoid daytime heat. Fares in May can be lower than peak winter travel but may rise around Memorial Day or local events.
Expect hot and humid conditions in Dhaka in May—pack breathable clothing, a light rain jacket, sun protection, and quick-dry fabrics. For Orlando departures, dress in layers for air-conditioned terminals and pack essentials in carry-on for potential delay scenarios.