Travelers are warned of possible flight delays due to air traffic controller shortages caused by the ongoing government shutdown. Bad weather may worsen the situation over the holiday weekend. Absences of controllers have increased as the shutdown continues, impacting flight efficiency and safety. The National Air Traffic Controllers Association plans informational leafleting at various airports to highlight the risks of the shutdown. Delta CEO reports no current operational impacts, but warns of potential changes if the shutdown persists. Flight delays are below the average daily rate so far this year.

Read more at CNBC: Airlines tell passengers to prepare for delays