Dayton (DAY) to Denver (DEN) flights
United Airlines flies nonstop from James M. Cox Dayton International Airport to Denver International Airport, with about 7 flights a week in July 2026. The 1,085-mile flight takes about 3h 9m gate to gate.
- Distance
- 1,085 mi · 1,746 km
- Flight time
- 3h 9m
- Airlines
- 1
- Seats filled
- 87%
Airlines flying DAY to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Airbus A319, Airbus A320-100/200, Boeing 737-900ER | 34,549 | 3h 5m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175 | 3,495 | 3h 33m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DAY to DEN flight schedule
2 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 9:00am and the last at 9:01am. 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 1925United Airlines | 9:00am | 10:07am | 21 | 100% |
| UA 1235United Airlines | 9:01am | 10:04am | 10 | 95% |
Is DAY to DEN on time?
From September 2025 to August 2026, 92% of 365 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 9am were the most punctual (93%), those around 8am the least (90%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (72%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 365 | 92% | 11 min | 0.8% |
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
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 3,688 | |
| September 2025 | 30 | 3,481 | |
| October 2025 | 31 | 3,372 | |
| November 2025 | 30 | 2,896 | |
| December 2025 | 31 | 3,411 | |
| January 2026 | 29 | 2,227 | |
| February 2026 | 28 | 1,739 | |
| March 2026 | 31 | 3,360 | |
| April 2026 | 30 | 3,473 | |
| May 2026 | 31 | 3,329 | |
| June 2026 | 30 | 3,493 | |
| July 2026 | 31 | 3,575 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.