COS → DEN Southwest Airlines
Southwest Airlines · Colorado Springs, CO to Denver, CO · 1,142 flights, 2025-07-01 to 2026-06-30 · aggregated across 53 flight numbers
On-time arrival
76%
Median delay
-6 min
90th percentile
+44 min
Cancellation rate
0%
How on-time is Southwest Airlines from COS to DEN?
Across every Southwest Airlines flight number on COS → DEN (1,142 flights, 2025-07-01 to 2026-06-30), 76% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +44 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 863 | 76% |
| 16-30 min | 112 | 10% |
| 31-60 min | 76 | 7% |
| 61-120 min | 56 | 5% |
| 2+ hrs | 30 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 96 | 56% | +28 min |
| 2025-08 | 97 | 65% | +17 min |
| 2025-09 | 93 | 80% | +4 min |
| 2025-10 | 97 | 78% | +5 min |
| 2025-11 | 92 | 79% | -1 min |
| 2025-12 | 97 | 70% | +9 min |
| 2026-01 | 98 | 92% | -10 min |
| 2026-02 | 88 | 84% | 0 min |
| 2026-03 | 97 | 76% | +5 min |
| 2026-04 | 97 | 82% | 0 min |
| 2026-05 | 103 | 83% | +3 min |
| 2026-06 | 82 | 62% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 155 | 70% |
| Tue | 155 | 78% |
| Wed | 152 | 74% |
| Thu | 155 | 75% |
| Fri | 155 | 68% |
| Sat | 186 | 83% |
| Sun | 179 | 81% |
WN flight numbers on COS → DEN
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…