From left, Nick Burton, Clancy Sloan and Graham Anderson rest while waiting for their flight at McCarran International Airport Sunday, Dec. 21, 2014, in Las Vegas.

Image: John Locher/Associated Press

By Jessica Plautz2014-12-24 20:52:13 UTC

The holidays: when good will toward men is on full display at airports and train stations around the world.

Just kidding. Holiday travel can understandably make people a bit crabby, and this year, a storm system in the Midwest and Northeast United States is adding to headaches across the country.

Flight delays began early this week, and showed no signs of letting up as of Wednesday afternoon. According to flight-tracking site FlightAware, the biggest delays are at Newark Liberty International Airport, John F. Kennedy International Airport, Philadelphia International Airport, O'Hare International Airport and San Francisco International Airport.

FlightAware's

The constant stream of travel complaints on social media makes you wonder how people vented their frustrations pre-Internet.

Despite lengthy security and check-in lines, most of the airport delays are due to weather. Passengers at several airports are reporting that Christmas Eve travel is relatively calm.

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Travel headaches add up as bad weather hits busy holiday week