Sun Country Airlines is planning its first pilot base outside of the Twin Cities, with eyes on opening one in Portland. The Star Tribune reports on the plan by the Eagan-based airline, which first needs to win approval from its pilots' union. Until now, Sun Country has only had a pilot base (also called a domicile), which is just what it sounds like: The airline's pilots all had to be based and begin and end their work trips in Minneapolis/St.