Detroit (DTW) to Denver (DEN): 1,120 miles (1,802 km) great-circle, about 2h 45m nonstop by our estimate. Cheapest fare observed: $194 round-trip on Frontier, nonstop, departing July 8, 2026.
$194 round-trip, Frontier F92211, departing 2026-07-08 at 07:45, returning 2026-07-11. The recorded itinerary left on a Wednesday, returning on a Saturday 3 nights later; the fare was observed 74 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $194, it ranked 11th of the 30 round-trip fares we recorded from DTW (median $275). That is 17.3 cents per great-circle mile (round-trip price over one-way distance), below the DTW median of 22.2 cents across 30 round-trip routes.
Routes from DTW of similar length: Fort Lauderdale (1,130 mi) at $149 and Houston (1,093 mi) at $152.
Frontier had the cheapest fare on 17 of 30 DTW routes. It is the 17th longest of the 30 routes we track from DTW.
Of 19 departure airports with a fare to Denver, Detroit (DTW) ranked 12th at $194. Lowest: $49 from Phoenix (PHX); highest: $382 from Guadalajara (GDL); 10 nonstop. Cheapest-fare airlines (routes): Frontier (18) and Viva Aerobus (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Denver; flight time is our estimate.