Flight OddsAA4778 DSM → ORD
American Airlines · Des Moines, IA to Chicago, IL · 35 flights observed, 2025-12-20 to 2026-04-06 · 299 mi
AA4778 covers more than one route in the data window — the stats below are for DSM → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-8 min
90th percentile
+89 min
Cancellation rate
3%
How often is AA4778 on time?
Across 35 flights on DSM → ORD from 2025-12-20 to 2026-04-06, AA4778 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +89 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 25 | 74% |
| 16-30 min | 3 | 9% |
| 31-60 min | 0 | 0% |
| 61-120 min | 4 | 12% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 4 | 75% | +16 min |
| 2026-01 | 2 | 100% | -29 min |
| 2026-03 | 22 | 73% | +4 min |
| 2026-04 | 6 | 67% | +57 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 4 | 75% |
| Wed | 3 | 67% |
| Thu | 4 | 50% |
| Fri | 4 | 75% |
| Sat | 7 | 86% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…