Flight OddsAA337 GRR → ORD
American Airlines · Grand Rapids, MI to Chicago, IL · 43 flights observed, 2026-04-08 to 2026-05-20 · 137 mi
AA337 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
95%
Median delay
-22 min
90th percentile
-1 min
Cancellation rate
12%
How often is AA337 on time?
Across 43 flights on GRR → ORD from 2026-04-08 to 2026-05-20, AA337 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -22 min, and the worst 10% of flights arrived -1 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 | 36 | 95% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 18 | 100% | -22 min |
| 2026-05 | 20 | 90% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 100% |
| Tue | 5 | 80% |
| Wed | 6 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 6 | 83% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…