Flight OddsUA1811 PHL → ORD
United Airlines · Philadelphia, PA to Chicago, IL · 176 flights observed, 2026-01-06 to 2026-06-30 · 678 mi
UA1811 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
88%
Median delay
-10 min
90th percentile
+22 min
Cancellation rate
3%
How often is UA1811 on time?
Across 176 flights on PHL → ORD from 2026-01-06 to 2026-06-30, UA1811 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +22 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 | 149 | 88% |
| 16-30 min | 5 | 3% |
| 31-60 min | 8 | 5% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 24 | 79% | +7 min |
| 2026-02 | 27 | 96% | -4 min |
| 2026-03 | 29 | 83% | +8 min |
| 2026-04 | 29 | 83% | -5 min |
| 2026-05 | 31 | 90% | 0 min |
| 2026-06 | 30 | 93% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 23 | 87% |
| Tue | 26 | 85% |
| Wed | 25 | 92% |
| Thu | 25 | 84% |
| Fri | 23 | 91% |
| Sat | 24 | 92% |
| Sun | 24 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…