Flight OddsAA4678 PIT → ORD
American Airlines · Pittsburgh, PA to Chicago, IL · 78 flights observed, 2025-12-18 to 2026-05-20 · 413 mi
AA4678 covers more than one route in the data window — the stats below are for PIT → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-10 min
90th percentile
+76 min
Cancellation rate
1%
How often is AA4678 on time?
Across 78 flights on PIT → ORD from 2025-12-18 to 2026-05-20, AA4678 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +76 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 | 61 | 79% |
| 16-30 min | 2 | 3% |
| 31-60 min | 4 | 5% |
| 61-120 min | 7 | 9% |
| 2+ hrs | 3 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 67% | +15 min |
| 2026-01 | 5 | 60% | +22 min |
| 2026-02 | 12 | 92% | +12 min |
| 2026-03 | 4 | 100% | -10 min |
| 2026-04 | 24 | 71% | +9 min |
| 2026-05 | 20 | 90% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 67% |
| Tue | 12 | 100% |
| Wed | 11 | 64% |
| Thu | 12 | 92% |
| Fri | 12 | 75% |
| Sat | 9 | 78% |
| Sun | 9 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…