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 | April |
---|---|
High season | July |
Cheapest flight | $34 |
Direct departures
Denver Intl to Miami
Monday
American Airlines, Copa Airlines, Frontier, +3 more
American Airlines, Copa Airlines, +4 more
2
3
Tuesday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Wednesday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
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, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Wednesday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
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
I'm not a fan of Southwest's model. I don't like the herding style of boarding.
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
It went well. Plane wasn't full. Will be great when assigned seating is in place
Excellent experience. WiFi worked on this leg of My trip
Crew was excellent. Comfort seats not as nice as other kinds of planes.
Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.
It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!
There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2
Flight was an hour late, who knows why. It was OK, nothing outstanding.
Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.
I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.
Crew was friendly Love the entertainment in the seat head rest.
Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.
Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.
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.
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.
Two issues. The plane was old and dirty. The armrest looked like an old car that had the vinyl rubbed off. The Seats in these aircraft are about as hard and uncomfortable. I want to tour Italy for a month and I want to buy a one-way ticket to Thailand but I will not sit in the seats these planes have. It is seriously stupid how hard they are.
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!
Everything went as planned. Crew was great. Seats were still not that comfortable.
Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!
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