Flight OddsUnited Airlines · Colorado Springs, CO to Chicago, IL · 127 flights observed, 2025-07-01 to 2026-06-30 · 911 mi
UA1398 covers more than one route in the data window — the stats below are for COS → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1398 on time?
Across 127 flights on COS → ORD from 2025-07-01 to 2026-06-30, UA1398 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +43 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 95 | 78% |
| 16-30 min | 10 | 8% |
| 31-60 min | 9 | 7% |
| 61-120 min | 5 | 4% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | +8 min |
| 2025-08 | 29 | 76% | -1 min |
| 2025-09 | 24 | 67% | +16 min |
| 2026-05 | 11 | 100% | -19 min |
| 2026-06 | 28 | 79% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 83% |
| Tue | 18 | 89% |
| Wed | 16 | 63% |
| Thu | 16 | 81% |
| Fri | 18 | 83% |
| Sat | 18 | 78% |
| Sun | 18 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…