In 2026, the online check-in window for a Ryanair flight closes exactly 2 hours before the scheduled departure time. If you have not checked in via the app or website by this deadline, you will be forced to check in at the airport counter and charged a mandatory Airport Check-In Fee, which currently stands at €55 / £55 per passenger. The window opens 60 days in advance for those who have purchased a reserved seat, or 24 hours in advance for those with a random seat assignment. For 2026 "pro-travelers," the best strategy is to use the Ryanair app to generate a Digital Boarding Pass as soon as the window opens, as this ensures you bypass the counter entirely and avoids the high costs associated with last-minute airport logistics.