With the WN/FL merger reducing IND to one carrier on many high-volume Florida routes and LAS, I've been wondering if the time is right for NK to enter IND.
After the WN/FL dust settles, I could see NK operating a decent focus city at IND with flights to FLL/LAS/MCO/MYR/RSW to fill in the super-cheap fare void left by FL. Then again, NK is a ULCC, and IND's airline user fees have been among the highest in the Midwest (and the US) since the current terminal opened. Even though IND's fees are notoriously bad, high fees haven't deterred NK from expanding at other high-cost airports (most notably LGA and ORD). And I think that IND management might throw out some hefty incentives to lure NK to IND to cool the burn.