A few things to consider when checking in.
Since 1 January 2015, passports and travel documents on entry to Turkey, with a validity of at least 150 days from the date of departure. For travel within the EU need your passport does not have a longer term than the date of departure (These rules apply to Swedish nationals). For accurate information about what is applicable for your destination and nationality we advised you to contact the relevant embassy.
Within the Schengen, you as a Swedish citizen are allowed to travel with your national ID card, and dont need your passport. At the police or passport office you will apply for ID card. With the national ID card, you can travel to and stay in all EU countries. Since July 1, 2015, national ID card can also be used when traveling to Norway, Switzerland, Iceland and Liechtenstein.