To get to Lushoto from Dar, you can take any bus to Moshi/Arusha and get off at Mombo (4.5 hrs). Then take a dala or Coaster up to Lushoto (1 hour, 2500sh.)

Or there are a few buses that go straight to Lushoto from Dar. Ibariki Tanzania bus is 12,000. Mbaruku is 10,000. There are a few others, but those are the two main ones.

To get to or from Moshi/Arusha, you can take any bus to Dar and get off at Mombo or take Fasaha or Chakito straight to Lushoto. It’s TSh13,500/= from Moshi, TSh14,500/= from Arusha.