Ryanair's check-in windows are quite strict and depend heavily on whether you have purchased a reserved seat. If you have purchased a seat, you can check in online starting from 60 days before your scheduled departure. However, for those who choose the free random seat allocation, the check-in window only opens 24 hours before the flight and closes strictly 2 hours before the flight departs. It is vital to complete this process online via the website or app, as Ryanair famously charges a significant "Airport Check-in Fee" (often around £/€55 per person) if you arrive at the airport without having checked in. Once checked in, if you are dropping off bags, the bag drop desks typically open 2 hours before the flight and close 40 minutes before departure. If you are traveling only with carry-on luggage, you can head straight to security, but you must ensure you have your digital or printed boarding pass ready. For non-EU/EEA citizens, there is often an additional "Visa Check" requirement where you must visit the check-in desk to have your documents stamped before proceeding to security, so it is recommended to arrive at the airport at least 2 to 3 hours early regardless of your check-in status.