I flew on a Continental 737-100 EWR to Buffalo. Interestingly, this was the main route in the PeoplExpress network for the -100, and my trip was a good few years after the two airlines were merged (it was from People's that CO ended up with these rare birds). The plane was pretty tired looking, but I loved it cos I knew I wouldn't get another ride in one - this was in 1991 and already there were only about a dozen on the planet, and only CO's five in the first world. Good flight, landing was really nice.
Remember when CO was a by-word for everything that was horrible about US domestic air travel? And the fleet: 727s, 737s (including the venerable -100s), 747s, A300s, DC9s (misc srs.), MD80s, DC10s (-10 and -30). What a mess - the average age must have been higher than NW or PA. Now it's 737, 757, 767, 777. Nice.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz