Route
COS → DEN
City of Colorado Springs Municipal Airport Denver International Airport
How punctual is this route?
- On-time arrivals
- 81.4%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,989
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 31%
- Late-arriving aircraft 27%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.5% | 443 |
| October 2025 | 79.6% | 450 |
| November 2025 | 86.2% | 426 |
| December 2025 | 78.0% | 441 |
| January 2026 | 83.3% | 389 |
| February 2026 | 84.4% | 346 |
| March 2026 | 80.2% | 388 |
| April 2026 | 84.8% | 362 |
| May 2026 | 85.2% | 426 |
| June 2026 | 78.8% | 435 |
| July 2026 | 81.8% | 436 |
| August 2026 | 75.8% | 447 |
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 | 3,337 | 83.4% | 1.5% | 82 min |
| Southwest Airlines | 1,125 | 77.8% | 0.3% | 65 min |
| United Airlines | 527 | 76.3% | 0.6% | 76 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO5634
15% late · 348 flights
-
OO4675
16% late · 342 flights
-
OO4696
10% late · 313 flights
-
OO5291
9% late · 311 flights
-
OO4719
32% late · 303 flights
-
OO4677
6% late · 244 flights
-
OO5400
14% late · 201 flights
-
OO5391
26% late · 182 flights
-
OO4647
15% late · 175 flights
-
OO5548
17% late · 159 flights
-
OO5620
16% late · 115 flights
-
OO4657
42% late · 102 flights
-
UA2244
16% late · 90 flights
-
OO4711
12% late · 82 flights
-
OO4725
15% late · 82 flights
-
UA324
12% late · 81 flights
-
OO5536
15% late · 72 flights
-
WN1187
14% late · 64 flights
-
WN2072
38% late · 60 flights
-
WN1438
16% late · 58 flights
-
WN2636
34% late · 58 flights
-
WN2733
9% late · 58 flights
-
WN421
21% late · 58 flights
-
WN4376
7% late · 58 flights
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