WASHINGTON, Nov 26 (Reuters) - United Airlines

said Tuesday an acute shortage of air traffic controllers is

causing "significant disruption" for travelers at its busy

Newark, New Jersey hub outside New York.

United said the Federal Aviation Administration has been

forced to reduce traffic flows to Newark hub because of low

staffing on 12 of the first 25 days of November, disrupting more

than 343,000 United travelers by delays, cancellations, long

taxi times and longer flight times related to air traffic

control delays for Newark.