Route
DEN → ORD
Denver International Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 71.8%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 92 min
- Flights arriving 15+ minutes late
- Flights tracked
- 6,109
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 37%
- Late-arriving aircraft 36%
- Airline (crew, maintenance, cleaning) 24%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 77.6% | 604 |
| October 2025 | 76.5% | 616 |
| November 2025 | 71.6% | 422 |
| December 2025 | 69.4% | 416 |
| January 2026 | 71.3% | 389 |
| February 2026 | 79.1% | 432 |
| March 2026 | 68.4% | 486 |
| April 2026 | 74.6% | 493 |
| May 2026 | 76.0% | 583 |
| June 2026 | 66.5% | 537 |
| July 2026 | 67.9% | 553 |
| August 2026 | 61.3% | 578 |
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 | 3,885 | 71.9% | 0.8% | 86 min |
| American Airlines | 1,473 | 73.3% | 1.8% | 122 min |
| Frontier Airlines | 321 | 64.1% | 2.2% | 86 min |
| Southwest Airlines | 301 | 69.7% | 0.3% | 61 min |
| Envoy Air | 129 | 74.8% | 0.8% | 61 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2329
16% late · 365 flights
-
UA2865
21% late · 365 flights
-
UA1023
40% late · 364 flights
-
UA617
31% late · 364 flights
-
UA1377
10% late · 363 flights
-
AA2771
12% late · 327 flights
-
UA2258
29% late · 274 flights
-
UA2430
13% late · 269 flights
-
UA1411
52% late · 266 flights
-
UA675
43% late · 232 flights
-
UA377
21% late · 226 flights
-
F93174
36% late · 186 flights
-
F93172
38% late · 130 flights
-
AA1647
20% late · 97 flights
-
UA1811
14% late · 84 flights
-
AA2833
28% late · 79 flights
-
UA1131
34% late · 77 flights
-
AA1734
45% late · 76 flights
-
AA1744
24% late · 76 flights
-
AA1747
26% late · 76 flights
-
AA1760
41% late · 73 flights
-
AA2755
18% late · 60 flights
-
UA1928
15% late · 59 flights
-
WN2367
47% late · 58 flights
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