Flight OddsAA1557 DCA → BOS
American Airlines · Washington, DC to Boston, MA · 35 flights observed, 2026-05-21 to 2026-06-30 · 399 mi
AA1557 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
65%
Median delay
-3 min
90th percentile
+61 min
Cancellation rate
3%
How often is AA1557 on time?
Across 35 flights on DCA → BOS from 2026-05-21 to 2026-06-30, AA1557 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +61 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 22 | 65% |
| 16-30 min | 4 | 12% |
| 31-60 min | 4 | 12% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 9 | 67% | +9 min |
| 2026-06 | 25 | 64% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 6 | 83% |
| Wed | 5 | 80% |
| Thu | 6 | 67% |
| Fri | 6 | 67% |
| Sat | No data | — |
| Sun | 6 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…