From NW press release about new IND service:

Northwest will offer a fourth nonstop flight between Indianapolis and New York starting Nov. 1, 2006. The addition of a fourth flight provides travelers between New York and Indianapolis with a broad array of schedule choices during the day.

Flight 4775 will depart Indianapolis at 2:30 p.m. and arrive in New York at 4:40 p.m., operating daily except Saturday. Flight 4776 will depart New York at 10:45 a.m. and arrive in Indianapolis at 1:15 p.m., operating daily except Sunday.

The fourth Indianapolis-New York flight will be operated by Northwest Airlink partner Pinnacle Airlines, with a 50-seat Canadair Regional Jet (CRJ).