UA307 ORD → COS
United Airlines · Chicago, IL to Colorado Springs, CO · 86 flights observed, 2025-07-01 to 2025-09-24 · 911 mi
UA307 covers more than one route in the data window — the stats below are for ORD → COS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-7 min
90th percentile
+12 min
Cancellation rate
0%
How often is UA307 on time?
Across 86 flights on ORD → COS from 2025-07-01 to 2025-09-24, UA307 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +12 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 79 | 92% |
| 16-30 min | 3 | 3% |
| 31-60 min | 2 | 2% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -3 min |
| 2025-08 | 31 | 90% | -6 min |
| 2025-09 | 24 | 92% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 13 | 100% |
| Wed | 13 | 100% |
| Thu | 12 | 100% |
| Fri | 12 | 83% |
| Sat | 12 | 83% |
| Sun | 12 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…