NEW : United Airlines scrubbed all flights Wednesday . More than 1,700 flights were canceled Wednesday as many holiday travelers looked to return home while a powerful series of storms advanced on the Northeast . NEW : Flight - data website estimated at least 1,700 flights were canceled . Greyhound was also affected by snowy roads , windy conditions . Travelers encouraged to check schedules of flights , bus , trains before leaving home .
NEW : United Airlines scrubbed all flights Wednesday . NEW : Flight - data website estimated at least 1,700 flights were canceled . Greyhound was also affected by snowy roads , windy conditions . Travelers encouraged to check schedules of flights , bus , trains before leaving home .