Flight OddsDL2509 BNA → BOS
Delta Air Lines · Nashville, TN to Boston, MA · 55 flights observed, 2026-05-07 to 2026-06-30 · 942 mi
DL2509 covers more than one route in the data window — the stats below are for BNA → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
95%
Median delay
-14 min
90th percentile
+4 min
Cancellation rate
0%
How often is DL2509 on time?
Across 55 flights on BNA → BOS from 2026-05-07 to 2026-06-30, DL2509 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +4 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 52 | 95% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 3 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 25 | 96% | -8 min |
| 2026-06 | 30 | 93% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 100% |
| Tue | 8 | 100% |
| Wed | 7 | 100% |
| Thu | 8 | 88% |
| Fri | 8 | 88% |
| Sat | 8 | 100% |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…