[ATLonthebrain]

I generally agree that 3 airlines flying any single route from BOI is overkill and not sustainable year-round. However, in the summer, there is a lot more demand, and there won't be enough seats to accommodate it this year with Frontier's decision combined with Southwest's & Delta's reductions. Frontier was carrying 6,500-7,000 pax per month out of BOI last summer. FWIW, United/Southwest/Frontier serve Spokane-Denver year-round. It's surprising to me that all three continue to co-exist on the route, however, United doesn't have much service in the market, so maybe that's why.

Good things are on the horizon for BOI. 2013 will be a much better year based on efforts currently underway. I'm feeling optimistic! ;-)