The cheapest month to fly to Qatar (Doha) is typically August, followed closely by May. This is primarily because these months coincide with the peak of the Arabian summer, where temperatures can soar above 45°C (113°F), leading to a significant drop in tourism demand. During this period, airlines like Qatar Airways and regional carriers often offer "sale" fares to fill seats, sometimes reducing prices by 30% to 40% compared to the high season. Conversely, December and January are the most expensive months due to the pleasant "winter" weather and the influx of travelers for major sporting events or end-of-year holidays. If you can handle the intense heat by moving between air-conditioned malls and museums, booking your 2026 trip for late August can save you hundreds of dollars on airfare and luxury hotel rates.