The company promised to publish a full list of the canceled flights by Tuesday, but as of Monday there were only details on canceled flights through Wednesday.
Ryanair is changing its holiday year, which now runs from April to March, to run from January to December instead.
Laura-Jayne Halton is getting married in Italy next week, and doesn't know if her flight will be cancelled.
Ryanair have announced a series of emergency personnel measures to ease the pressure on the raft of flight cancellations the company has made since Friday.
Some have alleged the airline, based in Ireland, is trying to steer customers away from claiming compensation by not making the offer clear on its website.
Ryanair has apologised for the disruption caused to passengers and said it was "working hard to fix" the problems, but that there will be a 2 per cent reduction in its 2,500 daily scheduled flights until the end of October.
If you choose an alternative flight, you are also entitled to "care and assistance" - things like food, drink and accommodation - while you are waiting for your new flight.
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A statement from the filmmakers following his death said , "We lost a legend today with the passing of Harry Dean Stanton ". He also appeared in hit TV series such as Big Love , and many westerns including Pork Chop Hill in 1959 with Gregory Peck.
And a mother said her daughter's 21st birthday in Amsterdam had been ruined because her flight had been cancelled last minute - with hotels and tickets to museums unrefundable. If your flight is cancelled you should receive an email and text message from the airline advising you of the cancellation.
Rory Boland, travel editor of consumer group Which?, said it is "essential" that Ryanair releases a full list of flights that will be affected to give passengers "as much time as possible to make alternate arrangements".
If you're flying with Ryanair, you better check these flights.. Stansted was the worst affected airport.
Angry ministers have urged the airline to compensate the thousands of passengers whose travel plans have been thrown into chaos.
If you are in the first two weeks of cancellations, you have the right to claim compensation if you choose to take a refund instead of changing your flight.
Ryanair states that "customers will be contacted directly about this small number of cancellations and offered alternative flights or full refunds".
He explained": "We have an unusual situation with Ryanair, moving from a 12-month leave from April to March called the fiscal year.