Flight OddsAA1637 DCA → ORD
American Airlines · Washington, DC to Chicago, IL · 124 flights observed, 2025-07-01 to 2025-11-01 · 612 mi
AA1637 covers more than one route in the data window — the stats below are for DCA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
66%
Median delay
+1 min
90th percentile
+107 min
Cancellation rate
2%
How often is AA1637 on time?
Across 124 flights on DCA → ORD from 2025-07-01 to 2025-11-01, AA1637 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +107 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 | 81 | 66% |
| 16-30 min | 11 | 9% |
| 31-60 min | 13 | 11% |
| 61-120 min | 6 | 5% |
| 2+ hrs | 11 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 43% | +90 min |
| 2025-08 | 31 | 68% | +10 min |
| 2025-09 | 30 | 73% | +13 min |
| 2025-10 | 30 | 80% | -1 min |
| 2025-11 | 1 | 100% | -35 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 71% |
| Tue | 17 | 59% |
| Wed | 18 | 39% |
| Thu | 17 | 65% |
| Fri | 18 | 78% |
| Sat | 18 | 72% |
| Sun | 17 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…