Denver Air Connection

Key Lime Air, dba Denver Air Connection (DAC), operates FAR Part 121 regional airline scheduled passenger service and scheduled passenger air charter. DAC operates scheduled routes between 16 cities across 10 states. Flights are operated with various aircraft, including Embraer ERJ-145 and Fairchild Dornier 328JET regional jets as well as Fairchild Swearingen Metroliner and Embraer EMB-120 Brasilia turboprops under FAR Part 135.

Denver Air Connection has an interline relationship with United Airlines, American Airlines, and Delta Air Lines enabling travelers to fly DAC and connect to these partners without having to collect and recheck baggage.

On 15 May 2019, the airline began service to Telluride Regional Airport also operating as Denver Air Connection and using the Fairchild Dornier 328JET. The service is the first jet service at the Telluride airport.

On June 1, 2019, the airline began its first Essential Air Service (EAS) contract at Alliance Municipal Airport under the Denver Air Connection brand, using the Fairchild Swearingen Metroliner. The service offers 12 weekly round trips to Denver.

Denver Air Connection serves the following destinations:

Former destinations

Interline Agreements

• Delta Air Lines
• United Airlines
• American Airlines

• On April 14, 2022, a Fairchild Metroliner (registration N820DC) operating flight 4230 experienced a nose gear malfunction and collapse at slow speed following an aborted takeoff at Denver International Airport. There were no injuries reported.