RENEE MONTAGNE, HOST:
NPR's business news starts with the last flight of Continental.
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MONTAGNE: It would be easy not to have known Continental Airlines has been merged with United for two years. That will change tomorrow, when all operations and branding are combined under just United.
The switch is not without risks. Any hiccups could mean delays throughout the airline system. That's why United conducted four dress rehearsals - with executives staying overnight at headquarters, to make sure things go as smoothly as possible. Transcript provided by NPR, Copyright NPR.