Flight OddsAA1166 PHL → ORD
American Airlines · Philadelphia, PA to Chicago, IL · 24 flights observed, 2026-02-12 to 2026-03-07 · 678 mi
AA1166 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
83%
Median delay
-7 min
90th percentile
+34 min
Cancellation rate
4%
How often is AA1166 on time?
Across 24 flights on PHL → ORD from 2026-02-12 to 2026-03-07, AA1166 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +34 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 19 | 83% |
| 16-30 min | 1 | 4% |
| 31-60 min | 2 | 9% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 16 | 81% | -1 min |
| 2026-03 | 7 | 86% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | 3 | 67% |
| Wed | 3 | 100% |
| Thu | 4 | 100% |
| Fri | 4 | 50% |
| Sat | 4 | 100% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…