Flight OddsAA4721 DCA → BOS
American Airlines · Washington, DC to Boston, MA · 6 flights observed, 2026-05-23 to 2026-06-27 · 399 mi
AA4721 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
67%
Median delay
0 min
90th percentile
+126 min
Cancellation rate
0%
How often is AA4721 on time?
Across 6 flights on DCA → BOS from 2026-05-23 to 2026-06-27, AA4721 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +126 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 4 | 67% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 17% |
| 2+ hrs | 1 | 17% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 2 | 50% | +36 min |
| 2026-06 | 4 | 75% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 6 | 67% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…