Route
COS → ORD
City of Colorado Springs Municipal Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 74.6%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 123 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,001
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 45%
- Late-arriving aircraft 26%
- Air traffic control & airport 20%
- Extreme weather 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.5% | 90 |
| October 2025 | 80.6% | 93 |
| November 2025 | 78.8% | 88 |
| December 2025 | 72.2% | 90 |
| January 2026 | 66.2% | 67 |
| February 2026 | 67.9% | 56 |
| March 2026 | 61.0% | 62 |
| April 2026 | 76.2% | 85 |
| May 2026 | 84.8% | 94 |
| June 2026 | 73.2% | 90 |
| July 2026 | 75.3% | 93 |
| August 2026 | 70.0% | 93 |
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 |
|---|---|---|---|---|
| SkyWest Airlines | 822 | 73.7% | 2.2% | 130 min |
| United Airlines | 179 | 78.7% | 1.7% | 81 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1398
25% late · 127 flights
-
OO5830
13% late · 95 flights
-
OO6351
38% late · 83 flights
-
OO4955
40% late · 76 flights
-
OO5836
21% late · 69 flights
-
OO6476
52% late · 54 flights
-
OO5562
19% late · 53 flights
-
OO5790
11% late · 47 flights
-
OO4994
33% late · 44 flights
-
OO4754
22% late · 37 flights
-
OO4728
17% late · 36 flights
-
OO4637
20% late · 35 flights
-
OO6337
16% late · 33 flights
-
OO5214
19% late · 31 flights
-
UA1150
6% late · 31 flights
-
OO6245
28% late · 30 flights
-
OO4942
35% late · 27 flights
-
OO4656
20% late · 21 flights
-
UA1594
24% late · 21 flights
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