Flight OddsAA4729 GRR → ORD
American Airlines · Grand Rapids, MI to Chicago, IL · 41 flights observed, 2026-05-21 to 2026-06-30 · 137 mi
AA4729 covers more than one route in the data window — the stats below are for GRR → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
66%
Median delay
-8 min
90th percentile
+70 min
Cancellation rate
7%
How often is AA4729 on time?
Across 41 flights on GRR → ORD from 2026-05-21 to 2026-06-30, AA4729 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +70 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 | 66% |
| 16-30 min | 2 | 5% |
| 31-60 min | 5 | 13% |
| 61-120 min | 5 | 13% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 64% | +4 min |
| 2026-06 | 27 | 67% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 6 | 83% |
| Wed | 4 | 25% |
| Thu | 5 | 80% |
| Fri | 6 | 83% |
| Sat | 6 | 83% |
| Sun | 6 | 17% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…