A Brazilian court on Tuesday threw out another judge's acquittal of two American pilots involved in the 2006 Gol Flight 1907 crash, which killed 154 people.
Flight delays happen for many reasons. Airlines can impose delays on themselves, or when weather hits, delays are put into place by air traffic control.
With the recent trend towards consolidation, airline alliances have become a useful way to connect route networks. Doug Wint analyzes the pros and cons.