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 | September |
---|---|
High season | May |
Cheapest flight | $63 |
Find which airlines fly direct from Denver Intl Airport to Miami Airport, which days they fly and book direct flights.
Direct departures
Denver Intl to Miami
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, +5 more
American Airlines, Copa Airlines, +6 more
4
5
Thursday
American Airlines, Copa Airlines, Frontier, +4 more
American Airlines, Copa Airlines, +5 more
3
4
Friday
American Airlines, Copa Airlines, Frontier, +5 more
American Airlines, Copa Airlines, +6 more
4
5
Saturday
American Airlines, Copa Airlines, Frontier, +5 more
American Airlines, Copa Airlines, +6 more
4
5
Sunday
American Airlines, Copa Airlines, Frontier, +5 more
American Airlines, Copa Airlines, +6 more
4
5
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
It is southwest seat was ok. Not the most comfortable seat
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
Flight was great, but golf bag never made it until later in the day. Even though I had a nonstop flight it was placed on a different one. They made it right with flight credits and I was able to get it the same day.
Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.
Crew was friendly Love the entertainment in the seat head rest.
Delta flight was on time, seats were comfortable, and crew was nice.
This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.
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.
This was a code share Latam Airlines flight - everything very good except there was no seatback entertainment
Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.
Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …
My flight was cancelled twice and the third time I tried to rebook it online I cancelled the flight because it looked like I would get a refund to my credit card. Instead I now have a credit. I was also on hold for three hours waiting for a representative and then disconnected. I will never fly delta again.
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.
The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!
Plane still had screens for watching movies. Good selection too.
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.
Check bag location is full of rude employees who are unwilling to assist with issues after talking to AA on the phone and relaying messages. The boarding was good. While on the flight it got really hot. Asked flight attendant if there’s a way to drop the temp and make it more comfortable as we are flying from DC to Miami so flying from cold to hot weather. No changes made. Stayed hot and uncomfortable on the plane. When asked again about the AC being down the flight attendant said no the WiFi was down but not the AC. I mentioned it was still hot. No changes.
There was a delay that affected all passengers with connecting flights.
I love to flight american however my carry on had to be sent with regular luggage and it was broken. Don't appreciate that. If when I buy a ticket says I can take a carry on and a hand item there should be space for mwsy stuff and not be basically forced to send the item even if it's at no charge. A.A. needs to work on that. Everything else excellent.
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!
they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation
The seats were extremely hard and uncomfortable, even for a budget airline.
Boarding was very well executed. Got my bag right away.
Overall experience good. There was no food and seats were not terribly comfortable.
It was horrible. My plane was delayed until the next day resulting in me losing a day of work. It’s absolutely unacceptable and I won’t be flying with you any more and I will strongly caution others to avoid your airline as well.
There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr
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