Route
DEN → PIT
Denver International Airport Pittsburgh International Airport
How punctual is this route?
- On-time arrivals
- 74.1%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,622
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 56%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 15%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 73.1% | 167 |
| October 2025 | 78.1% | 178 |
| November 2025 | 84.1% | 158 |
| December 2025 | 78.3% | 138 |
| January 2026 | 83.5% | 106 |
| February 2026 | 91.3% | 92 |
| March 2026 | 68.3% | 121 |
| April 2026 | 80.3% | 117 |
| May 2026 | 72.3% | 119 |
| June 2026 | 61.2% | 139 |
| July 2026 | 64.1% | 146 |
| August 2026 | 61.6% | 141 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 819 | 81.2% | 0.5% | 64 min |
| Southwest Airlines | 768 | 65.4% | 0.5% | 62 min |
| Frontier Airlines | 35 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1308
17% late · 310 flights
-
UA2155
35% late · 123 flights
-
WN2603
20% late · 64 flights
-
UA1246
19% late · 61 flights
-
WN4012
26% late · 61 flights
-
WN4262
12% late · 58 flights
-
WN3239
46% late · 57 flights
-
UA1211
18% late · 55 flights
-
UA2038
16% late · 55 flights
-
WN4215
27% late · 49 flights
-
WN1688
56% late · 43 flights
-
WN2605
22% late · 42 flights
-
UA1333
25% late · 36 flights
-
UA651
6% late · 36 flights
-
F94374
0% late · 35 flights
-
WN1725
21% late · 33 flights
-
WN2718
45% late · 33 flights
-
UA673
19% late · 32 flights
-
UA1544
10% late · 31 flights
-
WN2186
32% late · 31 flights
-
WN2321
50% late · 30 flights
-
WN2612
52% late · 27 flights
-
WN4381
44% late · 27 flights
-
WN2642
24% late · 25 flights
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