Tu154lover asked..........
"I wonder if a Saab 340B can be used on 800m runways with 33 pax for 30min flight."
The only pressurised aircraft that I know that will satisfy the above requirement, fulfilling approved performance requirements, is the DHC-8 100/200.
Widerĝe`s Flyveselskap AS has been operating these aircraft successfully for many years on the Northwest coast of Norway with several runways boasting runway lengths of 800 metres.