One of the essential ways to save on airfare from Istanbul Airport to Tarsus is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 72% on airfare.
The most flights from IST to COV are scheduled on a Thursday (29 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).