The color(s) brown, red, white, and blue is/are claimed as a feature of the mark.
The mark consists of a brown rectangle with the word "Frontier" in white in capital letters and small cloud cutouts below the word in the center, and a blue line above the rectangle. Below the rectangle is a blue semi-circle with a brown line bordering the bottom of the semi-circle. The semi-circle contains the words "AIR PARK" in white at the bottom, a white star cutout on both the left and right sides of the semi-circle, a white cloud which extends from the middle of the semi-circle to the brown rectangle, and a red, white and brown airplane on the cloud. The other white in the mark is not claimed as a feature of the mark and represents background areas.