Ryanair will start flying between Dublin and Amsterdam on the 27th of October 2015 with flights at Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays and Sundays. Everyday!

And here is the timetable ( some days are different):
                                                                                   Dublin- Departure- 6:50
                                                                                   Amsterdam- Arrival at 9:30( local time)

                                                                                   Amsterdam- Departure at 10:00
                                                                                   Dublin- Arrival at 10:40 ( local time)

And the rest of timetable of the day: