Flight OddsAA4648 BOS → DCA
American Airlines · Boston, MA to Washington, DC · 76 flights observed, 2025-12-03 to 2026-03-07 · 399 mi
AA4648 covers more than one route in the data window — the stats below are for BOS → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
-2 min
90th percentile
+91 min
Cancellation rate
7%
How often is AA4648 on time?
Across 76 flights on BOS → DCA from 2025-12-03 to 2026-03-07, AA4648 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +91 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 52 | 73% |
| 16-30 min | 6 | 8% |
| 31-60 min | 4 | 6% |
| 61-120 min | 5 | 7% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 79% | +16 min |
| 2026-01 | 24 | 71% | +21 min |
| 2026-02 | 26 | 77% | +18 min |
| 2026-03 | 7 | 57% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 11 | 91% |
| Wed | 12 | 67% |
| Thu | 11 | 55% |
| Fri | 10 | 70% |
| Sat | 11 | 91% |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…