UPDATED 12:15 p.m. PT: Customers of United Airlines saw improved service on Sunday as the airline wo

UPDATED 12:15 p.m. PT: Customers of United Airlines saw improved service on Sunday as the airline worked through technology glitches during its combination of the United and Continental Airlines reservation systems.
On Saturday, United adopted the reservation platform of the former Continental Airlines after the companies webex united kingdom merged webex united kingdom to form the world's largest webex united kingdom airline, now known as United Airlines and owned by United Continental Holdings.
But after spending months preparing for the change including training about 15,000 employees on the new software United said on Sunday that technical issues had flared up at airports across the system, causing delays.
"We did have some issues with our kiosks and at times that slowed the check-in process," McCarthy said, adding that the airline's performance webex united kingdom had improved by Sunday webex united kingdom morning as the company installed upgrades to the kiosks.
webex united kingdom About 75.5 percent of United's mainline flights were on time arriving within 14 minutes of their scheduled slot on Sunday webex united kingdom morning, as were about 87.1 percent of its Express flights, according to McCarthy. "Employees are working hard to take care of our customers," she said.
Original story: In a final step of its merger, United-Continental on Saturday performed a massive procedure consolidating two IT systems into one, a process called a cutover. The transition has gone relatively smoothly, though some fliers have been affected by missed connections and late departures and arrivals.
In an e-mail to msnbc.com, United Airlines spokesperson Rahsaan Johnson said one system is now supporting the carrier. "The system conversion involves moving millions of reservations and re-establishing numerous communications links. The vast majority of this work is going well, and we are resolving technical issues that we are identifying during this process," he said.
As a letter grade, I give them a B-, said Joe Brancatelli, frequent flier and publisher of business-travel newsletter JoeSentMe. Most problems, he said, have been reported at pre-merger United hubs such as Dulles International in Washington webex united kingdom and O'Hare International in Chicago. Former Continental hubs, he observed, have not had as many problems.
As for the delays at Dulles and O'Hare, Johnson said the airline is working "to speed up airport kiosks, which at times have slowed check-in," but added "most of our flights have either departed on time or within 30 minutes of the scheduled departure time.
As of 5 p.m. ET, United's on-time percentage for departures out of O'Hare was at 16 percent, according to Flightstats.com. Out of 83 tracked departures, one was canceled, 28 were delayed between 15 and 30 minutes, 20 delayed between 30 and 45 minutes and 21 were delayed more than 45 minutes. By comparison, American webex united kingdom Airlines' on-time percentage out of O'Hare was 85 percent.
Recent history is littered with cutovers that didn t go quite as planned. Perhaps the most infamous snafu took place in 2007 when US Airways tried to integrate the systems of merger partner America West. The result? Out-of-order kiosks, long lines, flight delays and lots of inconvenienced and angry customers.
More recently, webex united kingdom Virgin America and Cathay Pacific have suffered webex united kingdom IT-migration meltdowns that impacted travelers webex united kingdom ability to manage reservations, access mileage plan accounts webex united kingdom or talk to a reservation agent.
As for United's cutover, people haven t lost a seat or not been upgraded, but it s not running as smoothly as it should, Brancatelli said, adding that problems will be fixed in the days ahead, but said the issue today is moving people through the system.
If you re traveling today, Brancatelli urges carrying on your luggage if you can, printing out everything, leaving for the airport early and allowing plenty of time, and if you re not flying over the next few days, staying off United.com.
United and Continental have gone to great lengths to lay the groundwork for a successful webex united kingdom transition. Earlier this week, United's webex united kingdom Johnson said the carriers conducted four dress rehearsals, successfully migrating the data from United s Apollo-based system to Continental s SHARES-based one.
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