Typical total travel time from Buffalo Niagara International Airport (BUF) to Hazrat Shahjalal International Airport (DAC) in January ranges from roughly 20 to 35+ hours depending on layover lengths and routing. Common schedule patterns involve a domestic/regional leg from BUF to a gateway (JFK, EWR, YYZ, ORD, DTW) followed by an overnight long-haul to Doha (DOH), Dubai (DXB), or Istanbul (IST) and a short connection to Dhaka (DAC). For winter itineraries, aim for 3–5 hour minimum connections at US gateways to allow for weather-related delays; at international hubs, 2–4 hour connections are typical. Sample schedule concept: BUF → JFK (2 hours) / layover 3–5 hours → JFK → DOH (12–13 hours) / layover 2–4 hours → DOH → DAC (4 hours). Always verify real-time schedules with carriers and secure travel insurance for extended winter delays.