Frontier's Premium Bundle includes priority boarding and extra legroom.
Frontier charges for airport check-in; use online or kiosk options.
Planning a trip from Denver to Miami? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
When flying from Denver to Miami, the cheapest days to fly are typically Tuesdays, while the cheapest month to fly is September.
Day Selection: Choose to fly on Tuesdays for the best rates.
Advance Booking: Book your flight at least 30 days in advance to get the best price.
Airline Choice: Consider flying with Frontier, as it is generally the cheapest airline for this route.
Direct or Layover: Direct flights are generally cheaper for this route, so avoid layovers if possible.
Flight Type: Direct flights are typically cheaper than those with a layover for this route.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
Low season | August |
---|---|
High season | March |
Cheapest flight | $39 |
Direct departures
Denver Intl to Miami
Monday
American Airlines, Copa Airlines, GOL, +3 more
American Airlines, Copa Airlines, +4 more
2
3
Tuesday
American Airlines, Copa Airlines, GOL, +2 more
American Airlines, Copa Airlines, +3 more
1
2
Wednesday
American Airlines, Copa Airlines, Frontier, +3 more
American Airlines, Copa Airlines, +4 more
2
3
Thursday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Friday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Saturday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Sunday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Direct returns
Miami to Denver Intl
Monday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Tuesday
American Airlines, Copa Airlines, GOL, +2 more
American Airlines, Copa Airlines, +3 more
1
2
Wednesday
American Airlines, Copa Airlines, GOL, +2 more
American Airlines, Copa Airlines, +3 more
1
2
Thursday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Friday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Saturday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Sunday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.
The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.
WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order
I'm not a fan of Southwest's model. I don't like the herding style of boarding.
It is southwest seat was ok. Not the most comfortable seat
Plz don't take away free bags and free seating
I would have liked to arrive on time - not 5 hours late!
1.5 hour delay, poor service, no compassion from the crew. Terrible experience
Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!
I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.
Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group
On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.
The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!
I believe that a four-hour trip should have a meal. Delta had none.
Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!
I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.
Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.
this crew didn't care much. bumping carts into seats more times than i care to remember
Everything was fine except the entertainment was not working for half of the flight.
Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.
Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.
Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.
Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁
Electric plugs didn't work. Entertainment system wasn't working
The design of the light switch on the arm rest is ridiculous.
The gate attendant let me walk right by her with a bag too big for the overhead compartment
Maybe add a seat trade app for flyers that didn’t get seats together
Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.
David went above and beyond to make our flight the best that it could be
No food service almost missed because of first flight delays
Had a hard time finding my assigned seat. No attendants to assist.
While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.
This flight never occurred because AA couldn’t get their act together.
During service there was a garbage/beverage spill near our seats that never was cleaned up. On a relatively short flight when we’re fortunate enough to actually have in flight movies available, the flight attendants pitching the AADVANTAGE credit card shouldn’t talk for the last 10 minutes of the flight so that we miss the end of the movie.
The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.
Would have thought that they would gas up plane before everyone got on board
The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines
Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.
Checking in at the counter was very disappointing. The lady had a very bad attitude and smart at me. She had no smile, did not greet me by name, or acknowledge me as a valued customer. Poor reflection of the airline.
Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs
Boarded over an hour late, no communication, the sign just changed, no attendant to answer questions - she disappeared forever (hiding). Small plane and couldn’t hear the overhead nor understand.
What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.
I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!
Very bad! No good service delayed my second connection flight
Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.
2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.
The worst. We never made our connection and they did absolutely nothing to help us at the airport.
I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.
The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.
Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.
I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!
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