Add Yahoo as a preferred source to see more of our stories on Google. NEW YORK (AP) — Thousands of flights across the U.S. were canceled or delayed Wednesday after a system that offers safety ...

Delta Air Lines Inc.’s computer breakdowns are turning into an unwelcome, annual affair. The U.S. airline grounded all domestic flights Tuesday to deal with a technology issue that affected some of ...

Until Wednesday, few travelers had ever heard of a Notice to Air Missions, or NOTAM, nor did they know that the system used to generate those notices could cause widespread travel misery. As they ...