United Airlines claims only around 200 flights were impacted on Thursday when the airline suffered its third system outage this year.
Spokesman Rahsaan Johnson said few if any flights were canceled, claimed the fault was found and fixed within two hours, and insisted it "won’t happen again".
United also denied that the problem was related to its system merging with Continental’s system.
Thousands of passengers were hit by the disruption, which mainly affected the East Coast.
Fox News reports that this time out dispatchers were not able to send flight information to almost half of the airline’s mainline flights.
All the flights affected were on United aircraft, not United Express or Continental’s aircraft.
