Ryanair carried 19.6 million passengers in May - up 4% year-on-year.
The airline said that was across 108,000 flights - 3,000 more than in May 2024.
During the month the airline's load factor - the average proportion of seats filled on each flight - stood at 95%. This is on a par with its load factor in the same month of last year.
On a rolling basis it means that Ryanair carried 202 million people in the year to the end of May 2025 - 5m (8%) more than in the year to May 2024.
Last month Ryanair said it carried more than 200m passengers in its full year - which runs to the end of March - for the first time ever.