Flight OddsAA3977 DTW → ORD
American Airlines · Detroit, MI to Chicago, IL · 24 flights observed, 2025-08-06 to 2025-09-02 · 235 mi
AA3977 covers more than one route in the data window — the stats below are for DTW → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
91%
Median delay
-8 min
90th percentile
+13 min
Cancellation rate
4%
How often is AA3977 on time?
Across 24 flights on DTW → ORD from 2025-08-06 to 2025-09-02, AA3977 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +13 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 21 | 91% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 4% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 21 | 95% | -6 min |
| 2025-09 | 2 | 50% | +44 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 4 | 100% |
| Wed | 4 | 100% |
| Thu | 4 | 100% |
| Fri | 4 | 100% |
| Sat | No data | — |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…