Flight OddsUA631 CMH → ORD
United Airlines · Columbus, OH to Chicago, IL · 37 flights observed, 2025-08-19 to 2025-09-24 · 296 mi
UA631 covers more than one route in the data window — the stats below are for CMH → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+7 min
90th percentile
+36 min
Cancellation rate
3%
How often is UA631 on time?
Across 37 flights on CMH → ORD from 2025-08-19 to 2025-09-24, UA631 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +36 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 25 | 69% |
| 16-30 min | 6 | 17% |
| 31-60 min | 4 | 11% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 75% | +5 min |
| 2025-09 | 24 | 67% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 40% |
| Tue | 5 | 60% |
| Wed | 6 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 60% |
| Sat | 5 | 40% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…