Of the 6 million travelers, they're expecting approximately 550,000 travelers per day and more than 500 flights per day out of Houston's George Bush Intercontinental Airport.
It was initially reported that the cockpit was breached, but Delta Airlines later said the issue was an unruly passenger who "did not access the flight deck."
A former flight attendant accused of posing as a pilot and working airline employee fooled three U.S. carriers into giving him hundreds of free tickets over a span of four years, federal authorities say.
Multiple major airlines have announced they are waiving flight change fees for flights at Houston-area airports as the region prepares for a winter storm.
A Volaris jet and a United Express jet taking off from Houston's Bush Intercontinental Airport narrowly avoided colliding on Dec. 18, according to ABC News.
Airlines around the world canceled and delayed flights heading into the weekend to fix software on a widely used commercial aircraft.