Flight OddsAA3631 GRB → ORD
American Airlines · Green Bay, WI to Chicago, IL · 29 flights observed, 2025-11-02 to 2025-12-02 · 173 mi
AA3631 covers more than one route in the data window — the stats below are for GRB → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-14 min
90th percentile
+66 min
Cancellation rate
7%
How often is AA3631 on time?
Across 29 flights on GRB → ORD from 2025-11-02 to 2025-12-02, AA3631 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +66 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 21 | 78% |
| 16-30 min | 2 | 7% |
| 31-60 min | 1 | 4% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 25 | 80% | +0 min |
| 2025-12 | 2 | 50% | +47 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 5 | 60% |
| Wed | 4 | 75% |
| Thu | 3 | 67% |
| Fri | 4 | 100% |
| Sat | 2 | 100% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…