The cheapest day to depart from Ireland to Istanbul is on a Tuesday. Travellers who choose to depart for Istanbul on a Tuesday will often find tickets for as low as 275€. Flights from Ireland to Istanbul on a Friday will generally be more expensive and average around 302€. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
Our most recent data shows that the best time of day to fly to Istanbul is at midday. Flights from Ireland to Istanbul during this time can be as low as 195€. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are 316€ on average. Flights to Istanbul from Ireland in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.