Turkish Airlines said on June 25 that its Boeing 737 MAX planes would be grounded until further notice, resulting in several flight cancellations throughout the summer.
On Sunday, American Airlines said it has extended its ban on Boeing 737 MAX flights through November 2, right after United Airlines announced its decision to keep 737 MAX flights out of schedule until November 3.
"For planning purposes, Ryanair will now revise its summer 2020 schedule based on 30 incremental aircraft, rather than 58".
The low cost airline said they are taking action to reduce their services after they have slashed their expected growth rate for the summer of 2020 from 7% to 3%.
Ryanair chief Michael O'Leary said the airline "remains committed" to the Boeing 737 Max and expects it to be back in service before the end of the year but that the date is uncertain.
Mr O'Leary added he will look to "restore our growth to normal levels in summer 2021".
You can read O'Leary's statement in full here.
Boeing leadership and FAA officials believe there is a chance that the 737 Max could return to the skies in the fall, but the report in The Journal says that it's more likely that it will return in 2020.
'Accordingly, Ryanair now hopes to receive its first MAX200 aircraft sometime between January and February 2020, ' he said.
"We will also be consulting with our people and our unions in planning and implementing these base cuts and closures, which are directly caused by the B737 MAX delivery delays to the B737 MAX programme".
In May, the airline said it expected its 13 MAX planes to return to service in the third quarter.
If Boeing and the Federal Aviation Administration had done their jobs properly, Njoroge said, "these planes would have been grounded in November and today I would be enjoying summer with my family, I would be playing football with my son".
Ryanair faces a particular issue because it has ordered the high-capacity Max 200 version of the jet, which requires separate certification from US and European regulators, something that could take two months beyond the baseline model's return to service, it said.
Boeing on Monday sought to reassure aircraft financing and leasing firms that it is working "tirelessly" to get its 737 Max planes back in the air after two fatal crashes that have removed its bestselling aircraft from service worldwide during the height of the summer travel season.
Boeing has yet to convince regulators that updates to its software are enough to ensure the Max's safety.
At the Paris airshow last month, International Airlines Group, which owns British Airways, announced plans to buy 200 Max planes at a discount, referring to them as "B737 aircraft".
Despite the seemingly glum news, shares in Ryanair were 1% higher at €10.2 in early trading on Tuesday.