But things are hardly normal. Two runways were opened at around 10 a.m. and they're hoping to clear two more later in the day (Denver has six). Meanwhile, flights and passengers continue to back up on one of the busiest flying days of the year. That backup has impacted L.A.-area airports, too. Best to check on the status of your flight before heading out. Denver Post

*Update: A third runway was opened this afternoon and a fourth is expected to open tonight. That would bring Denver up to normal operations. But things won't really be back to normal for another couple of days. Meanwhile, it seems pretty crazy over there. Earlier in the day, the line to get through security went all the way through the baggage claim terminals on both sides of the airport, according to the Denver Post.