Yep. in 1961, I flew a SuperConnie (Flying Tiger Airlines USAF charter) from Travis AFB, CA, to Tachikawa AFB, Japan -- with stops at Hickham (HI) and Midway (or was it Wake?) Island.
Not much glamour: school bus type seats, stewardesses who looked like ex-Marine Drill Sergeants, and box lunches.
Mainly what I remember is 33 hours of droning engines...
The one I was in, was full of radar screens. :-)