244 flights are now impacted over the five days.
Aer Lingus has confirmed it would be cancelling 120 flights next Saturday alone, due to the eight-hour strike action by pilots.
It's believed the move will impact 15,000 passengers.
There are at least 244 flights which have now been cancelled between Wednesday to Sunday due to industrial action by IALPA pilots.
But, the number of flight cancellations next week could increase.
Eoghan Corry is from travel website TravelExtra.ie, he said the situation could get worse before it gets better:
"Interestingly enough, Aer Lingus moved their transatlantic flights outside of the [strike] hours. All very well, but now we have on the other side of the chessboard IALPA waiting to make their move."
He added: "So, it doesn't look like this is going to end up in talks anytime soon."
On Thursday Aer Lingus said it would cancel between 10% and 20% of flights during the five-days of industrial action.
