Miami (MIA) to Denver (DEN) flights
American Airlines, United Airlines, Frontier Airlines, Southwest Airlines fly nonstop from Miami International Airport to Denver International Airport, with about 42 flights a week in July 2026. The 1,709-mile flight takes about 4h 26m gate to gate.
- Distance
- 1,709 mi · 2,750 km
- Flight time
- 4h 26m
- Airlines
- 4
- Seats filled
- 88%
Airlines flying MIA to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| American Airlines | 14 | Boeing 737-800, Boeing 737 MAX 8, Airbus A321 | 134,391 | 4h 24m |
| United Airlines | 14 | Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 8 | 136,065 | 4h 28m |
| Frontier Airlines | 7 | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 62,984 | 4h 26m |
| Southwest Airlines | 7 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 49,164 | 4h 27m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MIA to DEN flight schedule
8 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 6:00am and the last at 8:39pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| F9 1279Frontier Airlines | 6:00am | 8:23am | 31 | 85% |
| UA 2045United Airlines | 7:37am | 10:00am | 10 | 91% |
| AA 1739American Airlines | 8:57am | 11:19am | 8 | 91% |
| AA 1222American Airlines | 9:30am | 11:52am | 24 | 92% |
| UA 2852United Airlines | 3:52pm | 6:20pm | 31 | 77% |
| WN 2862Southwest Airlines | 4:00pm | 6:25pm | 16 | 31% |
| AA 1737American Airlines | 8:31pm | 10:54pm | 4 | 65% |
| AA 1292American Airlines | 8:39pm | 11:04pm | 27 | 52% |
Is MIA to DEN on time?
From September 2025 to August 2026, 77% of 2,444 flights arrived within 15 minutes of schedule and 0.5% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 8pm the least (65%). Most delay time was caused by late-arriving aircraft (43%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 889 | 76% | 15 min | 0.9% |
| United Airlines | 877 | 83% | 13 min | 0.1% |
| Frontier Airlines | 355 | 83% | 16 min | 0.8% |
| Southwest Airlines | 323 | 55% | 29 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 254 | 90% | |
| 7am to 8am | 296 | 92% | |
| 8am to 9am | 206 | 89% | |
| 9am to 10am | 254 | 87% | |
| 10am to 11am | 52 | 86% | |
| 12pm to 1pm | 104 | 79% | |
| 2pm to 3pm | 60 | 68% | |
| 3pm to 4pm | 421 | 71% | |
| 4pm to 5pm | 84 | 29% | |
| 5pm to 6pm | 95 | 65% | |
| 7pm to 8pm | 94 | 72% | |
| 8pm to 9pm | 216 | 65% | |
| 9pm to 10pm | 155 | 70% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 178 | 28,667 | |
| September 2025 | 158 | 25,476 | |
| October 2025 | 171 | 26,257 | |
| November 2025 | 205 | 30,269 | |
| December 2025 | 236 | 37,286 | |
| January 2026 | 246 | 38,777 | |
| February 2026 | 239 | 37,048 | |
| March 2026 | 277 | 42,553 | |
| April 2026 | 192 | 27,779 | |
| May 2026 | 179 | 27,638 | |
| June 2026 | 179 | 30,267 | |
| July 2026 | 185 | 30,587 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.