Ryanair's most significant and controversial bag policy change occurred on November 1, 2018. Before this date, passengers were allowed to bring one small personal bag and one standard-sized 10kg carry-on bag to the gate (though the larger bag was often tagged for the hold for free). Under the 2018 rules, only one small "personal item" (40cm x 20cm x 25cm) is included for free for all passengers. To bring a 10kg carry-on bag into the cabin, passengers must now purchase "Priority & 2 Cabin Bags," which typically costs between €6 and €30. If you do not have "Priority," any 10kg bag must be checked in at the desk for a fee. This policy was designed to reduce boarding delays caused by too many bags in the overhead bins. While the fees have fluctuated with inflation in 2025 and 2026, the core "one free small bag" structure remains the foundation of Ryanair's ultra-low-cost model, serving as a template that many other budget carriers worldwide have since adopted to increase their non-ticket "ancillary" revenue.