Several of my long distance flights were super highlights:
Rotterdam to Maseru Lesotho in a Twin Otter - 44 hours, with the Rotterdam to Rhodes leg being 13 hours, without leaving the seat.
MD500 helicopter from Wasilla, Alaska, to Vancouver, 19.5 hours of the most magnificent northern scenery I could imagine,
Transatlantic in a Cessna 303, Toronto to Goodwood, UK, 17 hours.
DA-42 L360 from the Diamond factory in London, Ontario, to Texas - 10 hours (did not buy any jet fuel - unfortunately!)
C182 Bend Oregon, to home in central Ontario, via Vancouver Island (to visit a PPRuNer), 22 hours
And, my wife and I, and two folding bikes in my C 150, Central Ontario, to the Bahamas and back. About 30 hours round trip.