Interliners can now book Seabourn Cruises interline rates by calling our office at 800 766-2911. Who Qualifies? Commercial employees, their spouses, dependent children under 21, retirees of the airlines (not defunct carriers) and parents of the employee.. We must submit a copy of your airline ID within 48 hours of booking or Seabourn reserves the right to adjust the … [Read more...]