DEN-BIS starts May 17, 1x/day except Wednesday and Saturday, on the E190.

Although this another low-frequency route, Bismark already is a remote, low-frequency station in general. And the two days with no flights are lower days for business travel. The western North Dakota oil boom underway makes this a pretty decent addition.

I can be skepticall of some of the less-than-daily schedules (like when they launched MCI-SAT operating 1x/day except not Monday and Friday) but DEN-BIS has a better shot.