The Dreamliner's reliability rate is now around 98 percent, meaning that two out of every 100 flights is delayed, which is above the 97 percent reported in October but still short of the firm's target...
Currently the B777 is 99.4% reliable. Boeing is working to raise the Dreamliner's numbers to something similar to the 777.
http://www.nbcnews.com/business/trou...its-2D11988420