Not much more info, but the applications have helped stir up a hornet's nest.
Remember that only two US airlines can service and city pair between the US and Mexico.
It began when UAL applied for DEN
, to start in June. Both Allegiant and Champion also applied for the route.
Then Frontier applied for 3 routes - SLC
, to start July 3.
The first two were not challenged, but both Champion and USA 3000 wanted STL
. Champion has a reasonable case, if only because I think they put their application in first.
It all hit the fan when UAL applied for DEN
(for Ted) and others. Both Champion and Allegiant challenged it.
Since then, the DOT has only approved the unchallenged routes - Frontier's SLC
All the contested routes are still up in the air, and the DOT hasn't (publicly) given any clue as to when they will make the decisions.
Frontier has pushed back the start date for STL
, and according to FATFlyer, UAL has pushed back the start date for DEN