Flight OddsAA3634 ORD → AZO
American Airlines · Chicago, IL to Kalamazoo, MI · 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 ORD → AZO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
+1 min
90th percentile
+31 min
Cancellation rate
2%
How often is AA3634 on time?
Across 54 flights on ORD → AZO from 2026-02-12 to 2026-04-06, AA3634 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +31 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 | 42 | 79% |
| 16-30 min | 5 | 9% |
| 31-60 min | 4 | 8% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 82% | +3 min |
| 2026-03 | 30 | 83% | +6 min |
| 2026-04 | 6 | 50% | +34 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 7 | 100% |
| Wed | 7 | 100% |
| Thu | 8 | 75% |
| Fri | 7 | 57% |
| Sat | 8 | 88% |
| Sun | 8 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…