Flight OddsAA4399 LGA → BOS
American Airlines · New York, NY to Boston, MA · 21 flights observed, 2026-03-09 to 2026-04-06 · 184 mi
AA4399 covers more than one route in the data window — the stats below are for LGA → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
94%
Median delay
-17 min
90th percentile
-9 min
Cancellation rate
14%
How often is AA4399 on time?
Across 21 flights on LGA → BOS from 2026-03-09 to 2026-04-06, AA4399 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived -9 min or later. 14% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 94% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 14 | 93% | -10 min |
| 2026-04 | 4 | 100% | -18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 75% |
| Wed | 3 | 100% |
| Thu | 3 | 100% |
| Fri | 4 | 100% |
| Sat | No data | — |
| 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…