Periods depend on the type of countries actually. If we give an example, Mediterranean countries such as Turkey, Spain, and Italy are more expensive in summers due to being lively in summer tourism. On the other hand, you can pay less for skiing place in summers such as Switzerland and Norway because probably you will be traveling to these countries while they are moving out. That’s why the most ideal times will be January and February for traveling to the Mediterranean and Egean sides of Turkey. In these months, ticket prices can decrease at great rates.

Besides, as I said above, traveling to Turkey between June and October will be the most expensive months because of being vacation times for the Northern side of Ecuador meaning most of the world. The climate, cultural activities, entertainment field, economical relationships of the country that is going to be visited also affect the ticket prices.    

Also, you need to be aware of what time your visa process will completely accomplish.  Fortunately, most countries are free to access without needing a visa. However, the visa process can change from country to country. Before booking your journeys in Turkey, just make sure whether the time is enough to handle with a visa issue. If you travel to the country the first time, the option of the flexible flight ticket - which can be rotated to another date as you wish – can be useful. It also gains you enough time if any problem reveals about the visa.