Airlines Offering Cheap Flights from Denver to Detroit

Several carriers compete on the Denver (DEN) – Detroit (DTW) route, often yielding low fares. The most consistent budget-friendly options:

• Frontier Airlines – Ultra-low-cost base fares; fees for bags, seats, carry-ons.
• Spirit Airlines – Similar à la carte model; watch for "Bare Fare" promotions.
• Southwest Airlines – No change fees, two free checked bags; often competitive on total price.
• United Airlines – Hub at DEN; frequent sales, Basic Economy fares.
• American Airlines – Hub at DTW (via partnership); occasional deals.

Tips for the Lowest Fare

• Book 2–3 months ahead for domestic flights.
• Fly Tuesday, Wednesday, or Saturday.
• Consider nearby airports: DTW is primary, but Flint (FNT) or Toledo (TOL) may have deals.
• Sign up for airline email alerts and use fare-comparison tools (Google Flights, Skyscanner, Kayak).
• Travel light to avoid baggage fees on ULCCs.