Flight OddsAA4252 GRR → ORD
American Airlines · Grand Rapids, MI to Chicago, IL · 26 flights observed, 2026-03-08 to 2026-04-06 · 137 mi
AA4252 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
74%
Median delay
-6 min
90th percentile
+60 min
Cancellation rate
12%
How often is AA4252 on time?
Across 26 flights on GRR → ORD from 2026-03-08 to 2026-04-06, AA4252 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +60 min or later. 12% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 74% |
| 16-30 min | 1 | 4% |
| 31-60 min | 3 | 13% |
| 61-120 min | 2 | 9% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 19 | 74% | +9 min |
| 2026-04 | 4 | 75% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 3 | 67% |
| Wed | 4 | 50% |
| Thu | 3 | 67% |
| Fri | 4 | 75% |
| Sat | No data | — |
| 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…