Flight OddsAA4309 ORD → GRB
American Airlines · Chicago, IL to Green Bay, WI · 30 flights observed, 2026-03-08 to 2026-04-06 · 173 mi
AA4309 covers more than one route in the data window — the stats below are for ORD → GRB, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-7 min
90th percentile
+12 min
Cancellation rate
7%
How often is AA4309 on time?
Across 30 flights on ORD → GRB from 2026-03-08 to 2026-04-06, AA4309 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +12 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 | 25 | 89% |
| 16-30 min | 1 | 4% |
| 31-60 min | 1 | 4% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 22 | 91% | -6 min |
| 2026-04 | 6 | 83% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 100% |
| Wed | 4 | 75% |
| Thu | 4 | 75% |
| Fri | 4 | 75% |
| Sat | 4 | 100% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…