Aer Lingus is one of many airlines that are continuing to deal with staff shortages as the current wave of Covid-19 remains at its height across the globe.
Infection rates are increasing in the community as BA.4 and BA.5 spread rapidly and health officials have been pleading with the public to isolate even with mild symptoms.
The latest flights that have had to be scrapped due to the flight crew contracting Covid were seen on Monday as the Dublin to Seattle flight - as well as its return - were cut.
