Flight OddsUA308 PHL → ORD
United Airlines · Philadelphia, PA to Chicago, IL · 297 flights observed, 2025-07-01 to 2026-06-30 · 678 mi
UA308 covers more than one route in the data window — the stats below are for PHL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+7 min
90th percentile
+119 min
Cancellation rate
1%
How often is UA308 on time?
Across 297 flights on PHL → ORD from 2025-07-01 to 2026-06-30, UA308 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +119 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 176 | 60% |
| 16-30 min | 38 | 13% |
| 31-60 min | 36 | 12% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 28 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 27% | +73 min |
| 2025-08 | 28 | 57% | +54 min |
| 2025-09 | 29 | 59% | +15 min |
| 2025-10 | 31 | 55% | +17 min |
| 2025-12 | 30 | 60% | +33 min |
| 2026-01 | 5 | 100% | -13 min |
| 2026-02 | 17 | 71% | +7 min |
| 2026-03 | 31 | 71% | +59 min |
| 2026-04 | 29 | 72% | +16 min |
| 2026-05 | 31 | 77% | +14 min |
| 2026-06 | 30 | 53% | +51 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 40 | 68% |
| Tue | 43 | 63% |
| Wed | 41 | 59% |
| Thu | 42 | 52% |
| Fri | 43 | 65% |
| Sat | 41 | 66% |
| Sun | 41 | 51% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…