Flight OddsAA1243 BOS → LAX
American Airlines · Boston, MA to Los Angeles, CA · 182 flights observed, 2025-10-06 to 2026-04-06 · 2,611 mi
AA1243 covers more than one route in the data window — the stats below are for BOS → LAX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-5 min
90th percentile
+39 min
Cancellation rate
3%
How often is AA1243 on time?
Across 182 flights on BOS → LAX from 2025-10-06 to 2026-04-06, AA1243 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +39 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 | 131 | 74% |
| 16-30 min | 18 | 10% |
| 31-60 min | 17 | 10% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 6 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 26 | 73% | 0 min |
| 2025-11 | 30 | 87% | +4 min |
| 2025-12 | 31 | 55% | +29 min |
| 2026-01 | 29 | 66% | +4 min |
| 2026-02 | 23 | 70% | +10 min |
| 2026-03 | 31 | 94% | -15 min |
| 2026-04 | 6 | 83% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 79% |
| Tue | 25 | 76% |
| Wed | 26 | 77% |
| Thu | 26 | 69% |
| Fri | 25 | 84% |
| Sat | 26 | 62% |
| Sun | 24 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…