United has posted the schedule of domestic revenue flights at hub.united.com/en-us/News/Compa … outes.aspx
Daily flights in December to/from Houston, with the Narita service starting in March.
There may be some one-off flights before that if it tours the hubs before the start of revenue service.
is the IAH-DEN-IAH daily 787 service?
The United site I linked to says:
7:20 a.m. westbound
10:15 a.m. eastbound
Dec. 5, 2012
Jan. 2, 2013
The did say they would do the tour as well as a limited number of domestic flights while ramping things up.