Originally Posted by seattlepilot

The CASM of NK is 6.9 , Frontiers is 6.4 range on the 319s. The spread is even bigger on the 320s. (7.4 vs. 5.6) So Frontier cannot compete with NK unless they offer flights for high yielding customers. That's why I think F9 will look like EasyJet of Europe vs. NK being similar to Ryanair.