17- well, again again color me surprised
I think the first one is pretty straightforward: RNO-SFO,
United Western 72S; the second, not so much
SFO-
STLXXX-MIA,
TWA 707
who else ran 707s domestically in 1979? the only one that comes to mind is Northwest, but their relevant mid-con routes were SFO-MSP and ORD-MIA, and I have to think these would have seen tri-jets both large (DC-10) and small (727/72S)
unless ... this was a
Pan Am Clipper operating on National's former route over Houston (IAH) ?