Ryanair carried 400,000 more customers in April than in the same month last year, which the budget airline said was down to its service improvements including allocated seating and more relaxed hand-luggage policy.
However, it admitted that the fact Easter fell in April this year but in March in 2013 had skewed the figures.
It carried a total of 7.8 million passengers in the month, up 5% over 2013, which boosted year on year growth by 3% to 82 million passengers. Its load factors also rose 3% to 84%.
Rival easyJet saw its April traffic rise 10% to 5.8 million and its load factor rose 3.1 percentage point to 89.8%.