Ryanair boss Michael O’Leary has written to the airline’s 4,200 pilots, begging them not to leave, according to reports.
In a letter, O’Leary promised a shopping list of changes, including better pay and conditions.
“If you have, or are considering joining one of these less financially secure or Brexit-challenged airlines, I urge you to stay with Ryanair for a brighter future for you and your family,” he wrote in the letter seen by the Irish Independent.
During September Ryanair was forced into cancelling over 20,000 flights after rejigging pilot rotas to comply with aviation flying hours regulations.
More than 700,000 passengers have been affected by the culling of flights.
O’Leary reportedly accused pilots of being “full of their own self-importance” in the wake of the cancellations. But in the letter, he said he was referring to competitor airlines that “take every opportunity to criticise and denigrate Ryanair”.
Around 140 Ryanair pilots have left to work for rival Norwegian, the Irish paper reported.
Many of Ryanair's pilots are have joined unions in recent weeks, following discontent over rota changes.
“If you wish to improve your pay, your rosters, your supplements and your career prospects at Ryanair – as we do – then simply ask your base ERC to request an early meeting with [chief people officer] Eddie Wilson and his team,” O’Leary wrote.