BySuzanne Rowan Kelleher,

Forbes Staff.

As the Northeast gets hammered with snow and wind, flight delays are mounting at major airports across the Midwest and along the East Coast.

As of 12:30 p.m. EST Tuesday, over 3,600 flights in the United States were delayed and more than 140 cancelled, according to data from Flightaware.

The airports hit hardest are Chicago O’Hare, Atlanta, Washington DC’s Reagan National, Detroit and New York’s LaGuardia—all with triple-digit flight delays.