Frontier pauses Cedar Rapids–Denver service and cuts 19 Denver routes

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Frontier Airlines announced a planned pause of its Cedar Rapids (CID) to Denver International Airport service, setting no return date and describing the interruption as a seasonal break.
The airline also said it will cut 19 routes from Denver International Airport by the end of the year, including several Midwest destinations and two in Washington, with four of the routes having launched only in October 2025.