Ryanair customers who book to travel in October and November will be able to change their flights for free, the airline has said.
The company has extended the waiving of flight change fees for bookings made during the two months.
Changes can be made until March 21st next year without incurring the charge.
However, the company says the changes must be made at least a week before the planned departure.
Last week the company said it was cutting capacity in October by another 20%, blaming the Government restrictions on overseas travel for damaging bookings.
The airline had previously cut its capacity for the month by 20%.
It now expects its October capacity to fall from 50% to approx 40% of the levels it recorded in October 2019.
But it also said it expects to maintain a load factor in excess of 70% at this reduced schedule.
The airline has warned that it may close its bases in Shannon and Cork for the winter if the restrictions on overseas travel are not relaxed quickly.
Group Chief Executive Michael O'Leary also told RTE News last week that there is a real risk of further capacity cuts to the airline's services out of Dublin Airport.