For a Ryanair flight in 2026, the airport bag drop desks open at the latest 2 hours before your scheduled departure time. They close strictly 40 minutes before the flight is due to depart. If you miss this 40-minute cutoff, you will likely be denied boarding without a refund, as Ryanair prioritizes on-time departures. It is important to note that you must complete your online check-in at least 2 hours before the flight (or up to 60 days in advance if you have purchased a seat) before you even arrive at the bag drop desk. If you have not checked in online and try to do it at the airport, Ryanair will charge a significant "Airport Check-in Fee" (usually around £/€55). For those with very early morning flights, some major hubs like London Stansted may offer "Twilight Bag Drop" on select evenings, but the standard rule for most travelers is the 2-hour window. Always allow extra time for security, as Ryanair desks often have long queues during peak summer and holiday periods.