Flight OddsAA4455 DCA → BOS
American Airlines · Washington, DC to Boston, MA · 127 flights observed, 2025-11-03 to 2026-04-06 · 399 mi
AA4455 covers more than one route in the data window — the stats below are for DCA → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-10 min
90th percentile
+19 min
Cancellation rate
6%
How often is AA4455 on time?
Across 127 flights on DCA → BOS from 2025-11-03 to 2026-04-06, AA4455 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +19 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 103 | 86% |
| 16-30 min | 9 | 8% |
| 31-60 min | 6 | 5% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 27 | 93% | -10 min |
| 2025-12 | 17 | 82% | -6 min |
| 2026-01 | 22 | 68% | +9 min |
| 2026-02 | 24 | 88% | -6 min |
| 2026-03 | 25 | 92% | -8 min |
| 2026-04 | 5 | 100% | -19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 83% |
| Tue | 18 | 94% |
| Wed | 18 | 89% |
| Thu | 19 | 95% |
| Fri | 18 | 61% |
| Sat | 19 | 89% |
| Sun | 10 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…