I was just looking on my flight tracker and was wondering the same thing....
Just passing Great Fallls, MT.
Information as of 2233Z
FlightID: DAL55 (Commercial, Jet)
Status: DEPARTED, ENROUTE
Company: DELTA AIR LINES, INC.
Country: UNITED STATES
Radio Call: DELTA
Ground Spd: 512 kts (Assigned: 488)
Altitude: 350(hundreds of feet) (Assigned: 350)
Type: H/MD11 ((Unknown Type))
Origin Apt: ATL THE WILLIAM B HARTSFIELD ATLANTA INTL
Dest Apt: PANC TED STEVENS ANCHORAGE INTL
Departed: 1923Z ETA: 0206Z
Distance Fm: 1476.13 NM To Dest: 6261.48 NM