Flight OddsUA5631 ORD → DAY
United Airlines · Chicago, IL to Dayton, OH · 31 flights observed, 2025-07-07 to 2025-12-17 · 240 mi
UA5631 covers more than one route in the data window — the stats below are for ORD → DAY, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
+3 min
90th percentile
+53 min
Cancellation rate
6%
How often is UA5631 on time?
Across 31 flights on ORD → DAY from 2025-07-07 to 2025-12-17, UA5631 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +53 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 21 | 72% |
| 16-30 min | 2 | 7% |
| 31-60 min | 4 | 14% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 5 | 80% | -1 min |
| 2025-08 | 8 | 88% | +21 min |
| 2025-12 | 16 | 63% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 5 | 60% |
| Wed | 5 | 80% |
| Thu | 3 | 33% |
| Fri | 2 | 100% |
| Sat | 4 | 100% |
| Sun | 2 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…