Ryanair has cut more than 250 jobs in its offices in Dublin, Stansted, Madrid and Wroclaw.
The jobs have been terminated through a combination of probation/fixed term contract ends, resignations and redundancies.
Ryanair says none of those affected will be required to return to work on June 1 when these offices reopen.
The airline said it is continuing to meet with pilot and cabin crew unions across Europe to finalise up to 3,000 job cuts and 20% pay cuts.
Further announcements on crew job losses and pay cuts are expected before the end of this month.
Ryanair has operated less than 1% of its normal flight schedules during April, May and June, and this week announced that only 40% of its normal schedules would operate in July 2020.
For the full year, Ryanair now expects to carry less than 100 million passengers, over 35% lower than the 155 million target for the year ended March 2021.
People director Darrell Hughes said: "This is a very painful time for Ryanair, our crews and our people supporting operations from our Dublin, Stansted, Madrid and Wroclaw offices.
"Regrettably, we will now have a small number of compulsory redundancies to right size our support teams for a year when we will carry less than 100 million passengers due to the Covid-19 crisis.
"These job losses were communicated to individual team members this week."
