Jacksonville (JAX) to Denver (DEN) flights
United Airlines, Southwest Airlines fly nonstop from Jacksonville International Airport to Denver International Airport, with about 19 flights a week in July 2026. The 1,446-mile flight takes about 3h 48m gate to gate.
- Distance
- 1,446 mi · 2,327 km
- Flight time
- 3h 48m
- Airlines
- 2
- Seats filled
- 83%
Airlines flying JAX to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 12 | Boeing 737-800, Boeing 737 MAX 8, Airbus A320-100/200 | 89,632 | 3h 50m |
| Southwest Airlines | 8 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 51,874 | 3h 44m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
JAX to DEN flight schedule
7 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 8:15am and the last at 5:10pm. 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) |
|---|---|---|---|---|
| UA 671United Airlines | 8:15am | 10:05am | 31 | 89% |
| WN 1885Southwest Airlines | 8:55am | 10:30am | 8 | n/a |
| WN 4780Southwest Airlines | 1:45pm | 3:20pm | 4 | n/a |
| UA 484United Airlines | 3:07pm | 4:56pm | 15 | 57% |
| UA 1762United Airlines | 3:23pm | 5:07pm | 8 | 67% |
| WN 1637Southwest Airlines | 4:50pm | 6:25pm | 12 | 18% |
| WN 4107Southwest Airlines | 5:10pm | 6:45pm | 4 | n/a |
Is JAX to DEN on time?
From September 2025 to August 2026, 80% of 1,044 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 5am were the most punctual (95%), those around 3pm the least (65%). Most delay time was caused by late-arriving aircraft (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 661 | 86% | 13 min | 0.3% |
| Southwest Airlines | 383 | 70% | 19 min | 0.3% |
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 |
|---|---|---|---|
| 5am to 6am | 82 | 95% | |
| 7am to 8am | 42 | 91% | |
| 8am to 9am | 374 | 91% | |
| 1pm to 2pm | 37 | 62% | |
| 2pm to 3pm | 36 | 64% | |
| 3pm to 4pm | 79 | 65% | |
| 4pm to 5pm | 319 | 76% | |
| 5pm to 6pm | 51 | 32% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 61 | 9,324 | |
| September 2025 | 66 | 10,063 | |
| October 2025 | 92 | 12,421 | |
| November 2025 | 91 | 12,211 | |
| December 2025 | 95 | 13,256 | |
| January 2026 | 88 | 11,183 | |
| February 2026 | 76 | 10,263 | |
| March 2026 | 94 | 13,258 | |
| April 2026 | 91 | 11,720 | |
| May 2026 | 91 | 12,503 | |
| June 2026 | 85 | 12,720 | |
| July 2026 | 86 | 12,584 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.