Flight OddsAA4604 BOS → DCA
American Airlines · Boston, MA to Washington, DC · 26 flights observed, 2026-01-10 to 2026-03-07 · 399 mi
AA4604 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
61%
Median delay
+10 min
90th percentile
+39 min
Cancellation rate
12%
How often is AA4604 on time?
Across 26 flights on BOS → DCA from 2026-01-10 to 2026-03-07, AA4604 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +39 min or later. 12% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 14 | 61% |
| 16-30 min | 4 | 17% |
| 31-60 min | 4 | 17% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 3 | 100% | -19 min |
| 2026-02 | 14 | 64% | +10 min |
| 2026-03 | 6 | 33% | +28 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | 3 | 67% |
| Wed | 3 | 67% |
| Thu | 4 | 25% |
| Fri | 4 | 50% |
| Sat | 7 | 86% |
| 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…