Flight OddsAA311 ORD → DCA
American Airlines · Chicago, IL to Washington, DC · 97 flights observed, 2025-07-01 to 2025-10-05 · 612 mi
AA311 covers more than one route in the data window — the stats below are for ORD → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
+6 min
90th percentile
+63 min
Cancellation rate
4%
How often is AA311 on time?
Across 97 flights on ORD → DCA from 2025-07-01 to 2025-10-05, AA311 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +63 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 | 56 | 63% |
| 16-30 min | 17 | 19% |
| 31-60 min | 7 | 8% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 5 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 64% | +28 min |
| 2025-08 | 29 | 66% | +17 min |
| 2025-09 | 30 | 60% | +19 min |
| 2025-10 | 5 | 60% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 67% |
| Tue | 12 | 75% |
| Wed | 13 | 54% |
| Thu | 13 | 77% |
| Fri | 13 | 46% |
| Sat | 13 | 62% |
| Sun | 13 | 62% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…