You have a fair chance to choose a seat whether you already have a reservation or are making a new one after landing. Yes, travellers may select the seats of their choice under Delta's policy on seat selection. There are, however, a specific set of guidelines that you must adhere to. Additionally, you should be aware that selecting a seat will incur additional costs.

Let's first study about Delta Airlines seat selection policy in order to better grasp it. If you want to know more you can read the full blog.