The 737-600 was designed to compete against another sales flop, the A318 from Airbus, and replaced the -500 in the line up.
The 736 had a higher rated thrust than the -700 versions and was to be used for the shorter runways and cold weather environments of northern Scandinavia.
SAS purchased 30 of the type, by far and away the biggest order for it and they were delivered from 1998 to 2002. Many have been re-registered across the Scandinavian groups three constituent nations (Norway, Sweden, Denmark) over the years. While they do ply European routes, they’re these days more generally restricted to the ‘difficult’ short runways of Norway and Sweden that benefits form their higher thrust.
Only 5 are currently in service and many have already been scrapped. The airline plans on removing the last few from service by years end.
Very few were ever ordered, and the market for the type was miserably small, just as it was for the A318 (80 built).
Only 69 737-600’s were built in the end, and despite being listed in Boeing’s pricing until 2012, the last one was delivered in 2006. WestJet is now the largest operator. The type was the only variant not offered a winglet upgrade.
SAS fitted them as an all-economy 120 seater. The 736 never managed to any real success and if anything is largely forgotten, a footnote in Boeing’s history.