1,000 flights (and counting) canceled on East Coast: What options do travelers have?

Flight cancellations mounted by the hundreds after a Federal Aviation Administration outage snarled air traffic for hours on Monday.By 10:20 p.m. EDT, airlines had canceled around 1,100 flights across the country, according to flight-tracking service FlightAware.That included more than half of all departures on Monday planned for Newark Liberty International Airport (EWR), which was by far the hardest-hit airport.But nearly every major hub in the busy Northeast battled residual flight woes on Monday.The largest U.S. carriers issued travel waivers allowing travelers affected by the disruptions to make changes to their itinerary.And it's possible disruptions could spill into Tuesday as airlines get operations back on track.TPG's tips: Flight delayed or canceled? Here's what to doWhy so many flights got canceled on the East CoastThe problems on Monday stemmed from an outage to a critical FAA communications system in Philadelphia.Making matters worse, a rail worker accidentally cut a fiber line that provides key telecommunications to the nation's air traffic systems, according to Transportation Secretary Sean Duffy.Reward your inbox with the TPG Daily newsletterJoin over 700,000 reader...