Find Frontier Airlines(F9) flights from Miami to Denver

At the moment, you can catch a nonstop flight from Miami to Denver with the following airlines, including: American Airlines United Airlines Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 4 hours 39 minutes to fly from Miami to Denver.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Miami to Denver is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 39 flight per week flying from Miami to Denver. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/-/T/F/S -- AA2519 (09:29) Frontier Airlines: S/M/T/W/T/F/S -- F91279 (06:15)

The cheapest months to fly from Miami to Denver is November, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Miami to Denver on December 17, 2025 with Frontier Airlines, with prices starting at US$30.

You can land at any one of the following hubs in Denver, with Miami International Airport to Denver International Airport (MIA-DEN) is by far the most common option on this route: Rocky Mountain Metropolitan Airport (BJC) Denver International Airport (DEN).

The time difference between Denver and Miami is 2h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.