Frontier updated the flight schedule

Frontier has announced changes to its route schedule.

The following cheap flights have been cancelled:
Denver (DEN) - Sloulin Field (ISN) [check for other flights on this route]
Denver (DEN) - Hays (HYS) [check for other flights on this route]
Milwaukee (MKE) - Hays (HYS) [check for other flights on this route]
Milwaukee (MKE) - Sloulin Field (ISN) [check for other flights on this route]
Hays (HYS) - Denver (DEN) [check for other flights on this route]
Hays (HYS) - Milwaukee (MKE) [check for other flights on this route]
Sloulin Field (ISN) - Milwaukee (MKE) [check for other flights on this route]
Sloulin Field (ISN) - Denver (DEN) [check for other flights on this route]

Frontier is a cheap airline that operates on 270 low cost routes.