Flight OddsAA3634 AZO → ORD
American Airlines · Kalamazoo, MI to Chicago, IL · 54 flights observed, 2026-02-12 to 2026-04-06 · 122 mi
AA3634 covers more than one route in the data window — the stats below are for AZO → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-7 min
90th percentile
+83 min
Cancellation rate
2%
How often is AA3634 on time?
Across 54 flights on AZO → ORD from 2026-02-12 to 2026-04-06, AA3634 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +83 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 38 | 72% |
| 16-30 min | 4 | 8% |
| 31-60 min | 4 | 8% |
| 61-120 min | 4 | 8% |
| 2+ hrs | 3 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 88% | -5 min |
| 2026-03 | 30 | 67% | +28 min |
| 2026-04 | 6 | 50% | +48 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 7 | 86% |
| Wed | 7 | 86% |
| Thu | 8 | 75% |
| Fri | 7 | 57% |
| Sat | 8 | 88% |
| Sun | 8 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…