If you can use other airlines, do it. Complaint 1: I was flying to a foreign country with Delta and its business partner. The latter part of the flight was operated by its partner. In the itinerary, only Delta flight number was shown. After 3 phone calls and spending approximately 60 minutes, finally I got its partner''s flight number - so that my friend in the other end would know when to pick me up. Complaint 2: I missed the sky mileages for some parts of the trip. After 4 months and several phone calls, the mileages are... read full review »