Pittsburgh (PIT) to Denver (DEN) flights
Southwest Airlines, United Airlines fly nonstop from Pittsburgh International Airport to Denver International Airport, with about 33 flights a week in July 2026. The 1,290-mile flight takes about 3h 27m gate to gate.
- Distance
- 1,290 mi · 2,076 km
- Flight time
- 3h 27m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying PIT to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 19 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 100,243 | 3h 22m |
| United Airlines | 14 | Boeing 737-900ER, Boeing 737-800, Airbus A319 | 123,224 | 3h 31m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A321, Airbus A320neo | 6,042 | 3h 34m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PIT to DEN flight schedule
9 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 5:50am and the last at 6:35pm. 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) |
|---|---|---|---|---|
| WN 1874Southwest Airlines | 5:50am | 7:05am | 28 | 86% |
| UA 1765United Airlines | 8:32am | 10:00am | 31 | 93% |
| WN 2044Southwest Airlines | 10:10am | 11:25am | 4 | n/a |
| WN 3296Southwest Airlines | 2:05pm | 3:25pm | 12 | 83% |
| UA 1092United Airlines | 4:25pm | 5:55pm | 10 | 67% |
| UA 1816United Airlines | 4:57pm | 6:25pm | 21 | 76% |
| WN 3763Southwest Airlines | 6:25pm | 7:45pm | 4 | n/a |
| WN 3297Southwest Airlines | 6:30pm | 7:55pm | 12 | 30% |
| WN 205Southwest Airlines | 6:35pm | 7:55pm | 12 | 33% |
Is PIT to DEN on time?
From September 2025 to August 2026, 81% of 1,623 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 5am were the most punctual (94%), those around 6pm the least (53%). Most delay time was caused by air traffic control and airport congestion (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 820 | 86% | 12 min | 0.7% |
| Southwest Airlines | 768 | 75% | 16 min | 0.8% |
| Frontier Airlines | 35 | 86% | 10 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 |
|---|---|---|---|
| 5am to 6am | 202 | 94% | |
| 6am to 7am | 63 | 92% | |
| 8am to 9am | 352 | 91% | |
| 10am to 11am | 127 | 91% | |
| 1pm to 2pm | 36 | 69% | |
| 4pm to 5pm | 380 | 79% | |
| 5pm to 6pm | 60 | 77% | |
| 6pm to 7pm | 210 | 53% | |
| 8pm to 9pm | 51 | 70% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 175 | 23,812 | |
| September 2025 | 167 | 23,220 | |
| October 2025 | 178 | 24,623 | |
| November 2025 | 158 | 18,914 | |
| December 2025 | 139 | 19,995 | |
| January 2026 | 103 | 13,693 | |
| February 2026 | 92 | 12,446 | |
| March 2026 | 117 | 15,591 | |
| April 2026 | 117 | 15,120 | |
| May 2026 | 118 | 17,297 | |
| June 2026 | 140 | 22,125 | |
| July 2026 | 146 | 22,802 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.