My personal maximum plane for minimum people was being one of two people on a 767-200 flying a tag from Madrid to Nice, in 1993 or so. This was when TWA was just out of one of it's bankruptcy filings and made this bizarre effort to do a ton of oddball flying in Europe with tags and extra stations. (I flew it as JFK-MAD-NCE, and the return as NCE-BCN-JFK) The flight was pretty full JFK-MAD, but dead empty on the tag. The return leg was only slightly more loaded, about 10 people from Nice to Barcelona, then full onward. On the MAD-NCE leg, they just tossed both in first. On the return leg, the upgraded the lot of us to business, all the way to JFK. Sweet. Of course, the fact that they had so many spare business class seats laying around all the way to JFK might have been part of why TWA lost millions in its transatlantic operations and wandered back into Chapter 11 again before long. I also had shared an EAL 727 with one other guy from my office LGA-RDU, when EAL had just returned to flying after a strike. We re-booked to avoid doing LGA-ORD-RDU, hours after they were flying again and hours before our flight. They put us up in First, and served us a full hot breakfast on the just over 1 hour flight. - David