Alaska Airline City Codes Practice

Since the question is asking for the city code for Petersburg, we can eliminate options C and D, as they represent different cities. Option B, PSG, represents Petersburg, Alaska and is a common mistake as it is also the city code for Petersburg, Virginia. However, the correct city code for Petersburg is actually KTN, option A. KTN stands for Ketchikan, which is the nearest major city to Petersburg and is commonly used for flight reservations and other travel purposes.