Flight OddsAA1242 DCA → BOS
American Airlines · Washington, DC to Boston, MA · 46 flights observed, 2025-11-02 to 2025-12-17 · 399 mi
AA1242 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
61%
Median delay
-1 min
90th percentile
+143 min
Cancellation rate
4%
How often is AA1242 on time?
Across 46 flights on DCA → BOS from 2025-11-02 to 2025-12-17, AA1242 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +143 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 61% |
| 16-30 min | 2 | 5% |
| 31-60 min | 5 | 11% |
| 61-120 min | 5 | 11% |
| 2+ hrs | 5 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 28 | 57% | +90 min |
| 2025-12 | 16 | 69% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 6 | 67% |
| Wed | 7 | 86% |
| Thu | 6 | 33% |
| Fri | 6 | 33% |
| Sat | 5 | 60% |
| Sun | 7 | 57% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…